On April 19th a single man, William Henry Gray , unexpectedly arrived with an appointment from the American Board to join the Wihtman-Spalding party as a mechanic. Shortly after the mission company got started, a red haired, 19 year old youth named Miles Goodyear attached himself to the party until Fort Hall in Idaho.
Miles Morris Goodyear (2-24-17 to 11-12-49) After leaving the party he spent the next decade as a free trapper. In 1839 he married Pomona, daughter of Ute Chirf Pe-teet-neet. The couple had two children. Read more about him here. https://en.wikipedia.org/wiki/Miles_Goodyear