By the time the Continental Army was disbanded, William Bayley was married and living in New York. He apparently never returned to Portland to live and little is known about his life after his marriage.
A drawing by H. A. Ogden depicts the disbanding of the Continental Army at the end of the Revolutionary War, November 3, 1783, in New Windsor, New York. The drawing was published in Harper's Weekly on October 20, 1883, page 664.