Prominent family members in the sport include Frederick Cavill (1839-1927), sons Ernest Cavill (1868-1935), Charles Claude Cavill (December 19, 1870 - May 22, 1897), Percy Frederick Cavill (1875-1940), Arthur Rowland Channel (Tums) Cavill (August 24, 1877 - March 1, 1914), who is credited by sports journalist W.F. Corbett with originating the Australian crawl stroke, which now predominates in "freestyle" swimming races; and Sydney St. Leonards Cavill ("Sid") (1881 - May 5, 1945), was the originator of the butterfly stroke. Youngest son Richmond (Dick) Theophilus Cavill (1884-1938) was the first to use the crawl in a competition, winning 100 yards State championship in 1899 and in England, in 1902, he was the first to swim 100 yards in under a minute.
The three daughters, Madeline Cavill, Fredda Cavill and Alice Cavill (1874–1945) were all accomplished swimmers and swimming instructors.
And his great nephews Maxwell Cavill, William Cavill and Stuart Cavill are significant in the city of Adelaide.
- The Royal Family of Swimming, Reader's Digest (Australian edition), Retrieved September 21, 2012
- Allen, Geoff (26 March 1961). The saga of the swimming Cavills, The Sydney Morning Herald
- Williams, J.G. Cavill, Frederick (1839–1927). Australian Dictionary of Biography. National Centre of Biography, Australian National University. Retrieved 2 May 2015.
- Osmond, Gary (2009). "Forgetting Charlie and Tums Cavill: social memory and Australian swimming history". Journal of Australian Studies. 33 (1): 93–107. doi:10.1080/14443050802672569.
- (13 March 1914). "Tums" Cavill (obituary), Northern Advocate
- (2 March 1914). Cavill Freezes While Swimming: Champion Swimmer Was Unable to Stand Shock of Puget Sound Water, Spokane Daily Chronicle
- (5 May 1945). Sid Cavill Dies, Reading Eagle
- "Cavill, Richmond Theophilus (Dick) (1884–1938)". Cavill, Richmond Theophilus (Dick) (1884 - 1938) Biographical Entry - Australian Dictionary of Biography Online. Adbonline.anu.edu.au. Retrieved 2011-01-29.
- The Cavill Family (AUS) - 1970 Honor Contributors Archived 2007-11-04 at the Wayback Machine, International Swimming Hall of Fame website, Retrieved September 21, 2012
- Osmond, Gary (2012). "Swimming Her Own Course: Agency in the Professional Swimming Career of Alice Cavill". The International Journal of the History of Sport. 29 (3): 385–402. doi:10.1080/09523367.2012.659727.