William Dudley (swimmer) (English Wikipedia)

Evans, Hilary; Gjerde, Arild; Heijmans, Jeroen; Mallon, Bill; et al. "William Dudley". Olympics at Sports-Reference.com. Sports Reference LLC. Archived from the original on April 18, 2020. Retrieved January 27, 2013.
Evans, Hilary; Gjerde, Arild; Heijmans, Jeroen; Mallon, Bill; et al. "United States Swimming at the 1948 London Summer Games". Olympics at Sports-Reference.com. Sports Reference LLC. Archived from the original on April 17, 2020. Retrieved January 27, 2013.

usaswimming.org (Global: low place; English: 8,015^th place)

Evans, Hilary; Gjerde, Arild; Heijmans, Jeroen; Mallon, Bill; et al. "William Dudley". Olympics at Sports-Reference.com. Sports Reference LLC. Archived from the original on April 18, 2020. Retrieved January 27, 2013.
Evans, Hilary; Gjerde, Arild; Heijmans, Jeroen; Mallon, Bill; et al. "United States Swimming at the 1948 London Summer Games". Olympics at Sports-Reference.com. Sports Reference LLC. Archived from the original on April 17, 2020. Retrieved January 27, 2013.