He entered the service as a foot soldier about 1780 under Captain Martin Nawls, Major John Nawls and Colonel Richard Litter, that he served at least six months under them in Orange and Chatham County, was in no engagement or battle with the enemy. About two months after deponent was discharged he entered into the service under Captain William Smith, Major John Nawls, and Col. Robert Mebane, for a term of eight months. During this tour he was in a battle at Lindley's Mills on Cane Creek Orange County. The action continued about an hour and the conflict was a sharp one. Colonel Maybin ordered a retreat, and on the retreat Isaac received a shot near the spine, which was never retracted. He was confined six or eight weeks with his wound. The Battle of Lindley's Mill on 13 Sept. 1781 was the largest engagement of North Carolina's so-called Tory War. Isaac filed for a pension late in life and his application was rejected, probably for lack of proof of service.