Ham, Zachariahs, frontiersman (fl. 1825-1836). An able trapper and mountain man, nothing is known of his birth and little of his death. As leader of a party of trappers he discovered Ham's Fork, a tributary of Black's Fork of the Green River about 1825. He reached Los Angeles in 1831 with the William Wolfskill party. He was reported to have drowned in the Colorado River, perhaps about 1836.