Alpine guides

Patrick Gabarrou a.k.a. "Le Gab" (born 19 July 1951 in Évreux), is a French mountaineer and mountain guide who is credited with more than 300 first ascents, most of them in the Mont Blanc massif.
He has been the president of the international environmental NGO Mountain Wilderness from 2006 to 2010. He is mostly an ice climber, and is considered to be a pioneer of the modern wave of ice climbing.He also opened routes in several other regions like Canada, Bolivia and Patagonia.

Duncan "Dougal" Curdy MacSporran Haston (19 April 1940 – 17 January 1977) was a Scottish mountaineer noted for his exploits in the British Isles, Alps, and the Himalayas. From 1967 he was the director of the International School of Mountaineering at Leysin, Switzerland, a role he held until his death in an avalanche while skiing above Leysin.