Origin Notes and History:
Adopted in the 18th Report of the Geographic Board of Canada, 31 March 1924, as labelled on BC map 2C, 1919.
Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office
"The name of the channel, spelt "Cardero" on the chart, is evidently derived from Josef Cordero, the draughtsman (in Spanish: dibuxante) on Galiano's expedition in the Sutil and Mexicana, this being the channel by which his exploring vessels passed to the westward in 1792 from what is now known as the Strait of Georgia....."
Source: Walbran, John T; British Columbia Coast Names, 1592-1906: their origin and history; Ottawa, 1909 (republished for the Vancouver Public Library by J.J. Douglas Ltd, Vancouver, 1971)