[1] He was a teacher, merchant, soldier, and public official from Massachusetts.
During the American Revolution, he served in the Massachusetts Provincial Congress and in 1775, was commissioned colonel of a regiment of the Continental Army.
[2] When the Lexington Alarm was raised in April 1775, he "assembled a regiment of eight companies" consisting of many men from Hampshire County.
Later, Danielson was chosen Brigadier General for Hampshire County in 1776 and served in New York under General Washington.
Danielson was elected a Fellow of the American Academy of Arts and Sciences in 1781.