Named in 1928 by the Alpine Club of Canada party credited with first ascent, 10 July 1928 (mountaineers E.C. Brooks, W.G. Wheatley, B. Clegg, R.E. Knight, and T. Fyles), after the late Beverley Cochrane Cayley (1898-1928). Born at Grand Forks; only child of County Court judge Hugh S. Cayley of Vancouver; graduated 1918 in Arts from University of British Columbia; called to the bar in 1921. "Mr. Cayley was an ardent mountaineer. For several years a member of the executive committees of the BC Mountaineering Club and the Vancouver section of the Alpine Club of Canada. He climbed Mts Victoria, Ringrose, Huber, Pinnacle, Temple and other peaks of the southern Rockies. He made several ascents in the Robson District. Climbed Mt. Sir Donald in the Selkirks, Mt. Baker in Washington State, Mt. Garibaldi and other peaks of Garibaldi Park, and made numerous excursions to the mountains around Vancouver." (November 1928 notation by T. Fyles, file P.1.24). Beverley Cayley was a friend of those in the climbing party, and had died 8 June 1928, age 29, at Vancouver. Tom Fyles' description of first ascent, 1928, including photographs of the peak, published in Canadian Alpine Journal Vol XX, 1931, p.60.
Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office