[5] After graduating, he was the librarian of the college for a year, then studied law, was admitted to the bar in 1772 and commenced practice in Trenton.
[5] He returned to Somerset County and was judge of the Court of Common Pleas; he was a member of the Provincial Congress of New Jersey in 1776.
[1] During the Revolutionary War he served as captain in the Somerset County Militia in 1776, and first major from 1776 to 1781 under William Alexander, Lord Stirling.
[9][10][11] They were the parents of: Upon his father's death in 1776, he inherited his family's 664-acre estate, which included 20 slaves, in Mine Brook Valley.
[5] Linn died in Trenton, New Jersey on January 5, 1821, and was survived by his widow and a married daughter.