The third son, and the eighth of the eleven children of English-born jeweller, Robert Joseph Tymms (1847–1930),[1] and Canadian-born Anna Augusta Tymms (1849-1938), née Magee,[2][3] Athol Stanley Mortimer Tymms was born at Essendon, Victoria on 21 February 1886.

He married his first wife, Ethel Mary Ragg (1878-1936),[4] at Sydney, on 17 December 1915;[5] they had one child: Robert Dunlop Tymms (b.

[6] He married his second wife, Alison Atkins Fletcher (1904-1998), at Deniliquin, New South Wales in 1937; they had two children: the twins, Athol Mortimer Tymms, and John Mortimer Tymms, both born on 1 August 1938.

[17] After the 1913 season Tymms retired to focus on his career as a medical practitioner, and concentrate on his studies to become a specialist surgeon.

[18] This Australian rules football biography of a person born in 1886 is a stub.