Gage is in an unenviable position, pressed from without, and also from within. His troops are garrisoned among the enemy, and his only supply route and means of escape are by sea. Given his tactical disadvantage, the general decides to bargain with the town's selectmen. Ratifying the deal, the Provincial Congress will also allow civilians to pass without harm. Not surprisingly, fewer choose to enter Boston than to exit it; all told, between twelve and thirteen thousand men, women, and children will flee the besieged city.

Click here to view an example of a pass issued to a Boston family.