[1] He represented Liverpool Township in the Nova Scotia House of Assembly from 1775 to 1785.

From 1775 to 1785, Cochran represented Liverpool Township in the Nova Scotia House of Assembly, serving as speaker for the provincial assembly from November 1784 to October 1785.

[2] He was named to the Nova Scotia Council in June 1785 and served until his death in 1801.

His brothers-in-law included John Allan and the Honorable Charles Hill.

Together with his second wife, he was the father of several more children:[1] Cochran died in Halifax on 28 July 1801.