Prominent family members in the sport include Frederick Cavill (1839-1927), sons Ernest Cavill (1868-1935), Charles Claude Cavill (1870 - 1897), Percy Frederick Cavill (1875-1940), Arthur Rowland Channel (Tums) Cavill (1877 - 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 - 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  were all accomplished swimmers and swimming instructors.
- The Royal Family of Swimming Archived 2012-11-02 at the Wayback Machine, 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). 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
- "The Cavill Family". ISHOF. Retrieved 2023-12-09.
- "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.