He continued making changes on the painting until its completion in 1828 .
Trumbull returned to New York on November 26 , 1789 , to continue work on the painting by making portraits of Washington .
Trumbull continued making changes on the painting until its completion in 1828 .
Trumbull returned to New York on November 26 , 1789 , to continue work on the painting by making portraits of Washington .