Tom George Longstaff (15 January 1875 – 26 June 1964)[1] was an English medical doctor, explorer and mountaineer, most famous for being the first person to climb a summit of over 7,000 metres in elevation, Trisul, in the India/Pakistan Himalayas in 1907.[2] He also made important explorations and climbs in Tibet, Nepal, the Karakoram, Spitsbergen, Greenland, and Baffin Island.[3] He was a founding member of The Alpine Ski Club in 1908 and the Himalayan Club (1929),[4] was elected as an Honorary Member of the Climbers Club in 1932 and was its President from 1933–1935[5] and was president of the (British) Alpine Club from 1947 to 1949.[6]
Longstaff was commissioned into the 1/7th Battalion of the Hampshire Regiment in 1914 and served on the General Staff at Army Headquarters, Simla, 1915–1916. He was Assistant Commandant of the Gilgit Corps of Scouts, Frontier Militia, and Special Assistant at Fort Gupis to the Political Agent in Gilgit, from 1916, and was promoted Captain in 1917, retiring from the service in 1918.[7]
During the Second World War, he served with the 7th and 13th Battalion of the KRRC from 1939 to 1941.
Before the Great War, he travelled in Tibet in 1905, ascended Trisul in the Himalayas, 1907,[11] and in 1908 he was awarded the Gill Memorial by the Royal Geographical Society for his work in the Himalaya and Tibet.[7]
He went on to explore the Siachen Glacier and, with A.M. Slingsby, he discovered the peaks of Teram Kangri in 1909.[12] It has been written that the map he made during this journey "completely altered the topography as shown on older maps".[2]
When there were difficulties financing the 1938 Everest expedition Longstaff offered to underwrite the cost - on condition that the expedition was led by either Tilman or Shipton, that there would be no advance publicity and that, where possible, the climbers would each pay their own way.[17]
He was a well respected amateur ornithologist[18] and in 1933 he was one of eleven people[a] involved in the appeal that led to the foundation of the British Trust for Ornithology (BTO), an organisation for the study of birds in the British Isles.[19]