On this day 250 years ago in Cambridge, Massachusetts, the first contingent of the force of 1100 volunteers from the Continental Army led by Colonel Benedict Arnold departed to begin their march through Maine to join the invasion of Canada. Arnold’s troops were divided into three battalions: one commanded by Lieutenant Colonel Roger Enos, the second by Lieutenant Colonel Christopher Greene, and a third battalion of three companies of riflemen from Virginia and Pennsylvania led by Captain Daniel Morgan. Other officers on the expedition who would later achieve fame (and infamy) included Aaron Burr, Return J. Meigs, Henry Dearborn, and John Joseph Henry. The troops marched from Cambridge to Newburyport where they would board ships to carry them to the Kennebec River in Maine. The first troops to leave Cambridge were mostly men from northeast Massachusetts, so they could see their families before the expedition left Newburyport.

https://en.wikipedia.org/wiki/Benedict_Arnold%27s_expedition_to_Quebec