The Regiment was authorized on April 23, 1775 in the Massachusetts State Troops as Gerrish’s Regiment. Adopted on June 14, 1775 into the Continental Army and assigned to the Main Continental Army. It was assigned on July 22, 1775 to Heath’s Brigade, an element of the Main Continental Army. Reorganized and re-designated on January 1, 1776 as the 26th Continental Regiment, to consist of 8 companies; an element of Heath’s Brigade. Reassigned on August 12, 1776 from Heath’s Brigade and assigned to Clinton’s Brigade, an element of the Main Continental Army. It was assigned on August 13, 1777 to the 4th Massachusetts Brigade, an element of the Northern Department. 4th Massachusetts Brigade relieved on October 27, 1777 from the Northern Department and assigned to the Main Continental Army. Reorganized on May 12, 1779 to consist of 9 companies. Re-designated on August 1, 1779 as the 9th Massachusetts Regiment. Reassigned on January 1, 1781 from the 4th Massachusetts Brigade and assigned to the 3rd Massachusetts Brigade, an element of the Highland’s Department. Disbanded on January 1, 1783 at West Point, New York.