"Buntzen Lake (not Trout)" adopted in the 6th Report of the Geographic Board of Canada, 3 June 1905. Had been labelled "Trout Lake" on Jorgensen's 1895 map of British Columbia, in Electrical World & Engineer magazine, 1903; and on Harris' 1905 & 1913 editions of New Westminster District map. Labelled "Lake Beautiful" on other early maps (titles/dates not cited).

Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office

After Johannes Buntzen, managing director in London, England, of the Vancouver Power Company and BC Electric Railway Company.

Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office

"The General Manager of the Vancouver Power Company requests that a body of water east of the North Arm of Burrard Inlet and near the [company's] power house be changed from Trout Lake to Buntzen Lake, in honour of a former General Manager, J. Buntzen, Esq, now Managing Director in London, England of the Vancouver Power Company and BC Electric Railway Company." (29 September 1905 letter from James White, Chief Geographer, to A.H. Whitcher, Secretary of the Geographic Board of Canada, Ottawa file 0015).

Source: Canadian Geographical Names Database, Ottawa

...Johannes Buntzen, a Dane who came to Vancouver in 1890 and was the first manager of BCER, 1897-1905; afterwards a director. Died at Copenhagen 2 October 1922. The BCER tunnel connecting Lakes Buntzen and Coquitlam was completed in 1905. This is the "Lake Beautiful" of the native legend of the flood, told by Pauline Johnson, the place where the giant canoe took off to escape the deluge.

Source: Provincial Archives of BC "Place Names File" compiled 1945-1950 by A.G. Harvey from various sources, with subsequent additions