John de Vere Hazard
John Hazard joined the 1924 expedition on the recommendation of Morshead, his commander on the Somme in World War I. Although a strong alpine climber, Hazard was severely criticized for “leaving” four porters on the North Col, who had to be rescued by Norton, Mallory, and Somervell. After the expedition he also upset the Tibetans by conducting unauthorized survey work along the Zangbo river. This contributed to a ban on Everest expeditions for the next nine years.
Prior to Everest, Hazard was a sapper in the Indian Army and thus also brought general engineering skills to the expedition.