Career
After having lived in Mexico for the past two decades, Factor and other Black Seminoles joined the United States Army as Seminole-Negro Indian Scouts in August 1870, and served in the Red River War. Following the fatal shooting of his former fellow scout Adam Paine in early 1877, Factor deserted and fled back to Mexico. He later surrendered himself and was allowed to rejoin the army, eventually being discharged in November 1880.
Factor died at age 78 or 79 and was buried at the Seminole Indian Scout Cemetery in Brackettville, Texas.