Robert S. Sanford (1897-1981) served as an airplane mechanic for the 139th Aero Squadron during World War I. The 139th was assigned to the First Army on June 12, 1918 and engaged in the Toul Sector. They ceased operations on December 11, 1918. After the war, Sanford was employed by various private mining companies in South America, Mexico, Nevada, Colorado, Oregon, Canada and Oklahoma. He joined the US Bureau of Mines in 1940, and in 1943 was the district engineer in charge of the mineral development program in Alaska. While there, he found large oil areas on the Arctic slope. In the early 1950s, Sanford served with the State Department, on loan from the Bureau of Mines, as a mining consultant to Afghanistan, India, and Nepal. He resigned from the Bureau of Mines in 1966.