Captain John Cooke was a son of Colonel William Cooke, of the 12th. Regiment PA Continental Line. It may be said of him that he was cradled amid the din of arms, as while a small boy the family occupied one of the houses at Fort Augusta during the early part of the revolutionary struggle.
He studied law under Stephen Chambers, Esq. at Lancaster in the year 1790 and 91. In 1792  he received from General Washington a commission of Captain in the 4th sub Legion: raised a company of 120 men in the then bounds of Northumberland county (of whom it is said only twenty returned alive) which was sworn in at Carlisle barracks July 25, 179.
On Captain Cooke’s return from this campaign [The Battle of Fallen Timbers] on furlough, he, with a number of other officers, accompanied General Wayne to Philadelphia. They called, in a body, on President Washington, and were introduced by General Wayne. They then proceeded to a fashionable boarding school, where the Captain, in the presence of Gen. Wayne and his comrade officers, clothed in his battle-worn uniform, was united in marriage to his cousin Jennie, daughter of Jacob Cooke, Esq. of Lancaster, who was there at school. Their descendants are very numerous and highly respected people in Northumberland, Lycoming, Centre, &c. Counties.
… served through Wayne’s campaign with such credit that the Secretary of War, James McHenry, wrote him offering to continue him as captain in the regular army. He preferred retiring when there was no actual service. He never resumed practice but engaged in farming, carrying on mill, &c., at Northumberland.
Captain Cooke acted as Justice of the Peace many years, and died at Northumberland, PA July 16, 1824 in the 58th year of his age.
(footnotes by John B. Linn) -The American Historical Record, Vol. II, edited by Benson J. Lossing, LL.D., published by Samuel P. Town, 402 Library Street, Philadelphia, 1873