De Pencier Lake adopted 4 August 1955 on C.3455, as labelled on BC map 5B, 1929; an expansion of Shone Creek. De Pencier (two words) confirmed 1 September 1955, not "DePencier" (one word) as identified in some documents. Description changed 4 July 1957 on 92G/SE - this lake is at the head of Shone Creek.

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

Named after Bishop de Pencier, bishop of New Westminster at the time the feature was named [notation on BC name card indicates feature could have been named in 1915 or earlier, and so-labelled on Smith's map "Burrard Peninsula Water Supply," 1915.

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

According to the Bishop's daughter, the family name was actually spelled "de Pencier", gradually shifting to "De Pencier", as anglophones are more accustomed to starting a name with upper-case letters (undated letter 1442025, file 34275S #4).

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

"After the Most Reverend Adam Urias de Pencier, Anglican bishop of New Westminster, 1910; archbishop 1925, and metropolitan of the Ecclesiastical Province of British Columbia. Born at Burritt's Rapids, Ontario, in 1866, the youngest of eleven children of German and United Empire Loyalist ancestry. Archbishop de Pencier retired in 1940 after fifty years service in holy orders in Ontario, Manitoba, BC, and overseas during World War I. Named in 1910 by James Theodore Underhill, Vancouver (who first mapped this area) after meeting the bishop deer hunting near the lake, when he shot his first goat." (18 February 1947 phone conversation between A.G. Harvey and J.T. Underhill).

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