Did Alfred Russel Wallace's Chief Assistant from His Expedition to the Malay Archipelago Really Name Himself Ali Wallace?

In 1907, Thomas Barbour met Alfred Russel Wallace’s former chief assistant Ali on Ternate Island, Indonesia. Ali apparently told him that he had adopted “Wallace” as his second name. This claim has been questioned by historian John van Wyhe and anthropologist Gerrell Drawhorn, probably because it appeared unprecedented. However, this was not an isolated example; in 1872, John Thomas Cockerell recorded that a man from the Aru Islands, Indonesia, employed by Wallace in 1857, along with his eldest son, had similarly adopted “Wallace” as part of their personal names.