Homer may have attended the 1860 Republican convention at which Abraham Lincoln was nominated for President (Correspondence of Philip B. Stewart II, 6 Sabal Ct., Sewall's Point, Stuart, FL, 1/27/1990). Homer changed the spelling of his surname from "Stewart." Letter from Philip Stewart, 6 Sabal Ct., Sewall's Pt., Stuart, Fl. dated 1/27/1990 states that "the first Stewart to come to America, Proprietor John Stewart, occasionally used the "u" spelling & I believe that is the reason Homer adopted it."
Inglis Stuart book notes there is a summation of Homer's career annexed to "The Soul" published New York, 1879.