Humphreys, Gordon Noel, 1883-1966

found: Wikipedia, June 20, 2019(Gordon Noel Humphreys (1883-1966) was a British born surveyor, pilot, botanist, explorer and doctor. Originally trained as a surveyor, Humphreys worked in both Mexico and Uganda. During World War I he served as a pilot with the Royal Flying Corps, was shot down and spent his internment training himself in botany. After the war it was his survey work and exploration of the Ruwenzori Range in Uganda that brought him to the attention of Edward Shackleton)

found: The Cobbold Family History Tust website, June 20, 2019(Dr. G Noel Humphreys was best known perhaps as an explorer in Central Africa and the Arctic; he was also a botanist, an airman, a mountaineer and a surveyor, while in middle life he chose medicine as his profession. He was medical officer to the 1936 Everest expedition led by Hugh Ruttledge.)

found: Shackleton, Edward Shackleton, Baron. Arctic journeys, 1937:title page (Oxford University Ellesmere Land Expedition, 1934-5) page 36 (Dr. G.N. Humphreys--Leader, Surveyor and Botanist)