- Authorized on April 23, 1775 in the Massachusetts State Troops as Scammon's Regiment.
- Organized in spring 1775 at Cambridge to consist of 10 companies from York County.
- Adopted on June 14, 1775 into the Continental Army and assigned to the Main Continental Army.
- Assigned on July 22, 1775 to Heath's Brigade, an element of the Main Continental Army.
(less Darby's, Nowell's, Sayer's, and Sullivan's Companies) on January 1, 1776 with
Phinney's Regiment and consolidated
unit redesignated as the 18th Continental Regiment; concurrently, Darby's and
Nowell's Companies reOrganized and redesignated as Darby's
and Nowell's Companies, 7th Continental Regiment and Sayer's and Sullivan's
Companies reOrganized and redesignated as Sayer's
and Sullivan's Companies, 15th Continental Regiment