Capture of Montreal (1775): Montgomery’s American Victory in Canada

Battle at a Glance

Historical Background: The American Invasion of Canada

Why Montreal Mattered

In 1775, Montreal was one of the most important commercial and administrative centers in British Canada. Located on the St. Lawrence River, it connected Atlantic trade routes with the interior waterways of North America.

The city served as a center for merchants, military supply, government administration, and communications. Its capture would give the Americans access to valuable resources and a position from which to advance toward Quebec City.

The Strategic Importance of the St. Lawrence

The St. Lawrence River was the principal transportation corridor connecting Montreal with Quebec City and the Atlantic Ocean. Control of this waterway influenced the movement of soldiers, supplies, correspondence, and commercial goods.

Montreal also stood near the routes connecting the St. Lawrence with the Richelieu River and Lake Champlain, making it an important gateway between Canada and the northern colonies.

The American Decision to Invade

During the summer of 1775, the Continental Congress authorized an expedition into Canada. American leaders feared that British troops might use the Lake Champlain corridor to invade New York and threaten communications between New England and the other colonies.

They also hoped that the inhabitants of Canada might support resistance to British authority.

The Northern Expedition

Major General Philip Schuyler initially directed the American advance through Lake Champlain. Illness increasingly limited his ability to command in the field, and Brigadier General Richard Montgomery assumed responsibility for the principal operations.

Montgomery advanced north through the Richelieu River corridor toward the British defensive positions protecting Montreal.

The Siege of Fort Saint-Jean

Fort Saint-Jean was the principal British obstacle on the southern approach to Montreal. Its garrison, commanded by Major Charles Preston, resisted American siege operations from September into November 1775.

Montgomery’s forces established artillery batteries, restricted communications, and gradually isolated the defenders.

The Capture of Fort Chambly

On October 18, American and Canadian Patriot forces captured Fort Chambly, north of Saint-Jean. The victory yielded valuable artillery, ammunition, and provisions while further weakening the British defensive network.

Montgomery’s army used these gains to sustain the siege of Fort Saint-Jean.

The Fall of Fort Saint-Jean

On November 3, 1775, Preston surrendered Fort Saint-Jean. Hundreds of British regulars became prisoners, and the Americans gained control of the principal fortified position protecting Montreal from the south.

The surrender transformed the military situation. Carleton no longer possessed the regular forces needed to conduct a strong defense of Montreal.

The Failure at Longue-Pointe

Earlier in the campaign, Ethan Allen had attempted to capture Montreal with a small force. On September 25, British and Canadian defenders defeated his expedition at Longue-Pointe and took Allen prisoner.

The failure demonstrated that Montreal could not simply be seized by a small raiding party. Montgomery’s later success depended upon defeating the British defensive system before advancing on the city.

Carleton’s Dilemma

Following the fall of Saint-Jean, Governor Guy Carleton faced an increasingly untenable position. He had to decide whether to defend Montreal with limited forces or withdraw toward Quebec City, where stronger fortifications offered a better opportunity for resistance.

Carleton chose to preserve his command rather than risk its destruction in Montreal.

Commanders & Participating Forces

American Commanders

British Commanders

Montgomery’s Continental Troops

The American army included Continental troops from New York and New England, along with artillery personnel and supporting detachments.

Its effective strength had been reduced by sickness, fatigue, expiring enlistments, and the prolonged siege of Fort Saint-Jean.

New York Regiments

New York Continental troops formed an important part of the invasion force. Their service in the Canadian campaign included operations along Lake Champlain, the Richelieu River, and the approaches to Montreal.

Individual company assignments must be verified before placing a particular soldier inside Montreal on November 13.

New England Troops

Continental soldiers from Connecticut and other New England communities served in the northern expedition. Some had participated in the siege of Saint-Jean, while others were detached or joined the campaign at different times.

Canadian Patriot Volunteers

French-speaking Canadian supporters of the American cause assisted Montgomery through recruitment, intelligence, transportation, and military operations.

James Livingston was an important figure in organizing these volunteers, although Canadian support for the invasion was far from universal.

British Regulars

The surrender at Fort Saint-Jean deprived Carleton of many of the regular troops available to defend the approaches to Montreal. Remaining British forces were insufficient for a prolonged defense of the city.

Canadian Militia

Local militia participation varied. Some inhabitants supported the British administration, others favored the Americans, and many preferred to avoid involvement in the conflict.

The British could not assume that all eligible militia would mobilize for the defense of Montreal.

Montreal’s Civilian Population

Montreal contained French-speaking Canadians, British merchants, government officials, religious communities, and other residents with differing interests.

For many inhabitants, the immediate concern was maintaining public order, protecting property, and avoiding the destruction that might accompany a siege or assault.

Battlefield Geography & Terrain

The Island of Montreal

Montreal occupied an island in the St. Lawrence River system. The surrounding waterways shaped military movement and made control of crossings and river transportation essential.

An army approaching from the south needed to cross waterways before entering the city.

The Richelieu River Approach

The American expedition advanced north through Lake Champlain and the Richelieu River corridor. The capture of Fort Saint-Jean removed the principal fortified obstacle along this route.

From the Richelieu, American forces could move toward the southern approaches to Montreal and the St. Lawrence.

Montreal’s Fortifications

The city was surrounded by eighteenth-century defensive walls, but these works could not compensate for the loss of the regular troops needed to defend them.

Fortifications are most effective when supported by adequate manpower, artillery, provisions, and reliable communications.

The Southern Approach

Montgomery approached Montreal from the south after securing the Richelieu corridor. British forces could no longer rely upon Fort Saint-Jean to delay the American advance.

British Withdrawal by Water

The St. Lawrence offered Carleton a possible route toward Quebec City. However, American detachments and batteries along the river threatened British vessels attempting to escape.

The British withdrawal consequently involved risks even after the decision to abandon Montreal had been made.

The Modern Landscape

Modern Montreal has expanded far beyond its eighteenth-century boundaries. Most of the original city walls have disappeared, and later urban development has transformed the waterfront.

Historical maps are essential for reconstructing the city’s entrances, defensive perimeter, and river approaches in 1775.

Weapons, Equipment & Logistics

Continental Infantry Weapons

Montgomery’s soldiers carried muskets and other small arms typical of the early Revolutionary War. Equipment varied among regiments because the Continental Army had not yet achieved uniform standards.

Although the Americans entered Montreal without a major battle, their weapons remained essential for maintaining order and deterring resistance.

Artillery

The American expedition possessed artillery acquired or transported during the Canadian campaign. The capture of Fort Chambly and Fort Saint-Jean provided additional military stores.

Heavy guns were especially important in the preceding siege, but they were not required for a destructive assault upon Montreal itself.

River Transportation

Boats and other river craft were necessary for moving troops, supplies, and equipment through the waterways surrounding Montreal.

Control of crossings and access to vessels influenced the speed of Montgomery’s advance.

British Evacuation

Carleton’s withdrawal required vessels capable of carrying personnel and military supplies down the St. Lawrence.

American forces operating along the river threatened the movement of British transports.

Food and Provisions

The prolonged siege of Saint-Jean had strained American supplies. Occupying Montreal offered access to additional provisions, commercial stores, and transportation resources.

However, obtaining supplies did not automatically solve the army’s logistical problems. Purchases, requisitions, local cooperation, and transportation remained essential.

Winter Clothing

November weather increased the need for warm clothing, blankets, and shelter. Many American soldiers were inadequately equipped for a winter campaign in Canada.

Medical Conditions

Illness had weakened the northern expedition. Montgomery’s army continued to experience sickness and exhaustion as it advanced beyond the Richelieu corridor.

Enlistment Problems

Many Continental soldiers had enlisted for limited terms. As the end of 1775 approached, Montgomery faced the possibility of losing men before the campaign against Quebec City could be completed.

Montreal as a Supply Center

The city’s commercial resources made it valuable to the Americans. Warehouses, merchants, transport networks, and river access could support further operations.

Yet maintaining control of these resources required cooperation with local inhabitants and a functioning military administration.

Intelligence & Operational Planning

Montgomery’s Strategic Objective

Montgomery intended to secure Montreal before continuing toward Quebec City. Leaving the city under British control would threaten American communications and supplies.

The capture of Montreal would also provide a political demonstration that British authority in Canada was vulnerable.

The Importance of Saint-Jean’s Surrender

The capitulation of Fort Saint-Jean on November 3 changed the operational balance. British regular troops who might otherwise have defended Montreal were now prisoners.

Montgomery could advance without conducting another major siege along the Richelieu River.

Carleton Assesses His Position

Carleton recognized that his remaining forces were insufficient for a secure defense of Montreal. The city’s walls could not be held effectively without dependable troops and adequate supplies.

He therefore prioritized preserving British command and reaching Quebec City.

The British Evacuation

Carleton organized a withdrawal by water. The movement was complicated by American activity along the St. Lawrence, which threatened to intercept British vessels.

His departure left Montreal without the military force necessary to resist Montgomery’s entry.

American River Operations

American detachments sought to obstruct British communications and escape routes along the St. Lawrence.

These operations contributed to the pressure on Carleton and later resulted in the capture of British vessels and personnel associated with the withdrawal.

Negotiations with the City

With the British military administration departing, representatives of Montreal sought terms that would protect the inhabitants and their property.

Montgomery entered the city without the destruction that might have followed a prolonged siege or storming assault.

Maintaining Civilian Cooperation

Montgomery understood that occupying Montreal was not equivalent to securing the allegiance of its population.

The Americans needed to maintain order, protect property, and avoid alienating inhabitants whose support or neutrality was essential to the campaign.

Preparing for Quebec City

After entering Montreal, Montgomery began considering the next stage of the invasion. Quebec City remained under British control, and Benedict Arnold’s expedition was approaching it from the east.

The opportunity to unite the two American forces encouraged Montgomery to continue the campaign despite the approaching winter.

The Capture of Montreal: Interactive Timeline

Follow the collapse of the British defensive line, Carleton’s withdrawal, Montgomery’s entry into Montreal, and the subsequent advance toward Quebec City.

Tactical Analysis & Command Decisions

Phase One: The British Defensive Line Collapses

The surrender of Fort Saint-Jean deprived Carleton of a substantial portion of his regular forces. The fort had been the principal obstacle protecting Montreal from an American advance through the Richelieu River corridor.

Once it fell, Montgomery could approach the city without encountering a comparable fortified position.

Phase Two: Montgomery Advances North

American forces moved toward Montreal while maintaining pressure upon British communications and withdrawal routes.

Montgomery’s army was weakened by the siege but retained enough strength to threaten the city.

Phase Three: Carleton Rejects a Defensive Battle

Carleton understood that a defense of Montreal might result in the loss of his remaining troops and possibly his own capture.

Rather than risk a decisive defeat, he chose to withdraw toward Quebec City, where stronger defenses and access to reinforcement offered better prospects.

Phase Four: The St. Lawrence Becomes the Escape Route

The British attempted to move downriver. American detachments threatened the passage of vessels carrying personnel and supplies.

These river operations formed part of the larger capture of Montreal but should be distinguished from the peaceful entry into the city itself.

Phase Five: Montreal Submits

With Carleton gone, the city lacked the forces needed to resist a determined American occupation.

Negotiations helped establish terms intended to protect inhabitants and avoid unnecessary destruction.

Phase Six: Montgomery Occupies the City

On November 13, Continental troops entered Montreal. The operation achieved its immediate objective without a major battle inside the city.

The Americans gained a strategically important position, but they also inherited responsibility for its defense and administration.

Why Montgomery Succeeded

Montgomery succeeded because the British defensive system had already been broken. His victory at Saint-Jean removed the principal regular force capable of resisting the American advance.

He then used the threat of further military action to secure Montreal without a destructive assault.

Why Carleton Withdrew

Carleton prioritized preserving British command and continuing the defense of Canada from Quebec City. Montreal’s walls were of limited value without enough reliable soldiers to defend them.

His withdrawal sacrificed the city but preserved the possibility of resisting the invasion elsewhere.

The Operational Trade-Off

The Americans gained Montreal, but Carleton’s escape deprived them of the opportunity to capture the British governor and eliminate a major source of organized resistance.

That distinction became important when the campaign continued toward Quebec City.

The Soldier’s Experience

After the Siege of Saint-Jean

Many American soldiers approaching Montreal had spent weeks in the difficult conditions of the Saint-Jean siege. They were tired, frequently short of supplies, and increasingly concerned about winter weather.

The prospect of entering a major city without another prolonged battle offered relief from the strain of siege operations.

The Advance Toward Montreal

Troops moved north through unfamiliar territory, relying upon local roads, river transportation, and guides.

Maintaining discipline was essential because the army needed to demonstrate that it could occupy the city without threatening the civilian population.

Entering the City

On November 13, Continental troops entered Montreal as an occupying army rather than as soldiers storming enemy fortifications.

The city offered streets, commercial buildings, churches, warehouses, and residences unlike the temporary camps and rural settlements through which many soldiers had traveled.

Canadian Civilians

Residents faced uncertainty about how the new military authorities would govern. Some welcomed the Americans, while others remained loyal to Britain or sought neutrality.

For merchants and property owners, preserving trade and preventing disorder were immediate concerns.

Religious and Cultural Differences

Most of the province’s French-speaking population was Roman Catholic. American leaders needed to manage relations with communities whose religious and legal traditions differed from those of many soldiers from New England.

The occupation required political sensitivity as well as military discipline.

Food, Shelter, and Winter

Montreal offered opportunities to obtain supplies and shelter, but winter was approaching. Soldiers needed clothing, provisions, and equipment for further operations.

The army’s ability to remain effective depended upon more than the successful occupation of the city.

British Personnel in Retreat

British soldiers and supporting personnel withdrawing from Montreal faced uncertainty about whether their vessels could pass American positions along the St. Lawrence.

Some were captured during subsequent river operations, while Carleton escaped and continued toward Quebec City.

The Next Campaign

For Montgomery’s troops, the capture of Montreal did not end the invasion. Many would soon face the more difficult challenge of operating against Quebec City during the Canadian winter.

Where Was Your Ancestor’s Unit?

The Capture of Montreal involved troops who had served throughout the Canadian campaign, but participation in the siege of Saint-Jean does not automatically prove that an individual entered Montreal on November 13.

Researchers should examine dated muster rolls, military returns, pension declarations, and correspondence to determine a soldier’s location during the occupation.

American Unit Research

British Research

American Pension Applications

Revolutionary War pension declarations may identify service under Richard Montgomery, the capture of Montreal, the Siege of Saint-Jean, or the advance toward Quebec City.

Because many pension applications were recorded decades after the events, recollections should be compared with contemporary unit records.

Distinguishing Campaign Service

Service in Canada during 1775 does not establish participation in every engagement. Some soldiers remained at Fort Ticonderoga, Fort Saint-Jean, or other posts while Montgomery advanced toward Montreal.

Canadian Volunteers

French-speaking Canadian participants may appear in military correspondence, parish records, petitions, or later accounts of the American occupation.

Researchers should consider French and English spelling variations in personal names and locations.

British Prisoner Records

British soldiers captured at Fort Saint-Jean were prisoners before the American entry into Montreal. They should not be classified as casualties of a battle in the city.

Separate records may document British personnel captured during river operations following Carleton’s withdrawal.

Montreal Residents

For civilian ancestors, parish registers, notarial records, merchant correspondence, and property documentation may establish residence during the American occupation.

Such records may reveal how families experienced the transition from British to American military authority.

Battle Outcome & Casualties

The American Occupation

On November 13, 1775, Richard Montgomery’s troops occupied Montreal without a major battle inside the city.

The Americans gained control of an important commercial and administrative center and secured a position from which to continue operations toward Quebec City.

British Withdrawal

Guy Carleton abandoned Montreal rather than risk the destruction or capture of his remaining forces.

His withdrawal preserved British leadership for the continued defense of the province.

Casualties

Because the city was occupied without a major battle, there was no substantial battlefield casualty total associated with Montgomery’s entry.

Losses from Fort Saint-Jean and the subsequent interception of British vessels belong to separate military actions within the same campaign.

The Limits of the Victory

The capture of Montreal was an important American success, but it did not eliminate British resistance in Canada.

Quebec City remained under British control, and Carleton’s escape ensured that experienced British leadership remained available to organize its defense.

Strategic Aftermath

American Control of Montreal

Montgomery’s occupation extended American military control into the St. Lawrence Valley. The city offered valuable commercial resources, transportation facilities, and a base for further operations.

However, holding Montreal required troops and supplies that the American army could not easily spare.

The Escape of Guy Carleton

Carleton ultimately reached Quebec City, where he organized the British defense against the approaching American forces.

His escape was a major limitation upon Montgomery’s success. The Americans had captured Montreal but had not removed the senior British commander responsible for defending the province.

The Advance Toward Quebec

Montgomery continued down the St. Lawrence with a reduced force. His objective was to join Benedict Arnold, whose expedition had traveled through the Maine wilderness toward Quebec City.

The two American forces eventually united outside the city.

The Battle of Quebec

On December 31, 1775, Montgomery and Arnold launched an assault against Quebec City.

The attack failed. Montgomery was killed, Arnold was wounded, and many American soldiers were captured. The British retained control of the city.

The American Occupation Continues

American forces remained in Montreal during the winter of 1775–1776, but maintaining control became increasingly difficult.

Disputes over supplies, currency, political authority, and relations with Canadian inhabitants complicated the occupation.

The British Counteroffensive

In 1776, British reinforcements arrived in Canada, allowing Carleton to regain the initiative.

American forces eventually abandoned Montreal and retreated southward toward Lake Champlain.

The Failure of the Canadian Invasion

The capture of Montreal had appeared to place the Americans close to conquering Canada, but the failure at Quebec City prevented them from completing the campaign.

By the summer of 1776, the invasion had ended in retreat.

The Continuing Importance of Lake Champlain

The northern corridor remained strategically important. In October 1776, Benedict Arnold’s American fleet fought British naval forces at Valcour Island, delaying the British advance toward New York.

The same general corridor would become central to the Saratoga campaign of 1777.

Why the Capture of Montreal Matters

The Capture of Montreal demonstrated the operational consequences of defeating a defensive system rather than merely winning an isolated battle.

Montgomery’s success at Fort Saint-Jean made the occupation of Montreal possible without a major assault.

The event also illustrated a central problem of the American invasion: capturing territory was easier than securing the entire province against organized British resistance.

Primary Sources & Historical Research

The Capture of Montreal is documented through American military correspondence, British colonial records, contemporary accounts, congressional proceedings, and later histories of the Canadian campaign. Researchers should distinguish the November 13 occupation from the Siege of Fort Saint-Jean and the subsequent interception of British vessels on the St. Lawrence.

Primary Sources and Documentary Leads

1. Richard Montgomery’s correspondence, November 1775. Reports concerning the advance, occupation, and preparation for further operations.
2. Philip Schuyler’s correspondence. Documents relating to the Northern Department and the Canadian campaign.
3. Guy Carleton’s correspondence. British accounts of the withdrawal from Montreal and the defense of Canada.
4. Journals of the Continental Congress. Decisions concerning the invasion, supplies, military appointments, and occupation of Canadian territory.
5. American military returns. Dated records identifying regiments and detachments serving under Montgomery.
6. British military and naval records. Documentation concerning the evacuation and subsequent river operations.
7. Canadian parish and notarial records. Evidence concerning Montreal’s inhabitants and the impact of the occupation.
8. Contemporary maps of Montreal. Cartographic evidence for the city’s walls, river approaches, and surrounding geography.
9. Revolutionary War pension declarations. Later recollections of service in Montreal and the Canadian campaign.

Historical Research Resources

1. Founders Online. Founding-era correspondence and military reports.
2. Library and Archives Canada. Canadian colonial records, manuscripts, and historical collections.
3. U.S. Army Center of Military History. Official histories of the Continental Army and Canadian campaign.
4. U.S. National Archives. Revolutionary War service and pension records.
5. The National Archives (United Kingdom). British Army and colonial administration records.
6. Library of Congress. Historical maps and military cartographic collections.
7. McCord Stewart Museum. Montreal historical collections and archival resources.
8. American Battlefield Trust. American Revolutionary War campaign research.

Research Limitations

Accounts of the capture sometimes combine the surrender of Fort Saint-Jean, Carleton’s evacuation, Montgomery’s entry, and the interception of British vessels into a single narrative. These were related but distinct events.

The American army’s effective strength changed during November because of illness, detachments, and expiring enlistments. A single troop-strength estimate should not be applied indiscriminately to every stage of the campaign.

Descriptions of Canadian support for the Americans also require caution. The population was divided, and attitudes varied among communities and individuals.

Finally, the capture should not be described as a major street battle. Montreal was occupied after the British military command withdrew.