From the National Park Service:
His [John Ellis Wool's] military career spanned more than 50 years, beginning when he organized a volunteer brigade in 1812 and became the Captain of the Thirteenth United States Infantry
There are John Ellis Wool Papers at the New York State Library. A bio was also provided:
"When the War of 1812 broke out, he raised and headed a company of volunteers in Troy, and on 14 April 1812, he was commissioned a captain in the 13th Infantry. His troops were engaged in action at the battles of Queenstown and Plattsburgh. In between the battles he was promoted to a major in the 29th Infantry on 13 April 1813, and, afterwards, was brevetted a lieutenant colonel on 11 September 1814. He was made colonel and inspector general of the Army on 29 April 1816 and maintained this grade for more than a quarter of a century."