(October 12, 1753 – December 27, 1824)

You can see a famous painting of Captain Pratt here:

https://www.dma.org/collection/artwork/ralph-earl/captain-john-pratt-1753-1824

Captain Pratt joined the forth regiment, Pennsylvania Line as an ensign in July 1779 and was promoted to lieutenant the following May and ended his Revolutionary War service as Regimental
Quartermaster of the Third Pennsylvania.
Served as acting Adjutant General of the US Army, 1790 - 1791

Learn more about Captain Pratt here:

https://en.wikipedia.org/wiki/John_Pratt_(soldier)