Edmund Henry George Cayley1 
He gained the rank of Captain in the RFR.1
Children of Edmund Henry George Cayley and Marie Olga Martin
- Evelyn Olga Vivienne Cayley+2 b. 6 May 1899
- Digby Edgar Martin Cayley2 b. 7 Aug 1904
- Reginald Estcourt Cayley2 b. 2 May 1907, d. 15 Aug 1908
- S/Ldr. Damyon Edmund Martin Cayley+2 b. 6 May 1909, d. 14 Jan 1957
Otto Martin1
Child of Otto Martin
- Marie Olga Martin+2 d. 3 May 1910
Marie Olga Martin1 
From 3 August 1898, her married name became Cayley.
Children of Marie Olga Martin and Edmund Henry George Cayley
- Evelyn Olga Vivienne Cayley+2 b. 6 May 1899
- Digby Edgar Martin Cayley2 b. 7 Aug 1904
- Reginald Estcourt Cayley2 b. 2 May 1907, d. 15 Aug 1908
- S/Ldr. Damyon Edmund Martin Cayley+2 b. 6 May 1909, d. 14 Jan 1957
George Fox1
Child of George Fox
- Laura Eugénie Beatrice Fox2 d. 1949
Laura Eugénie Beatrice Fox1 
From 27 December 1913, her married name became Cayley.
Digby Edgar Martin Cayley1
He was a master mariner, with the Colombo Pilot Service.1 He gained the rank of Lieutenant-Commander in the Royal Navy Volunteer Reserve (Ceylon.)1
Thomas Allen Harper1
Child of Thomas Allen Harper
Dorothy Harper1
From 14 January 1931, her married name became Cayley.
Reginald Estcourt Cayley1 
S/Ldr. Damyon Edmund Martin Cayley1 
He gained the rank of Squadron Leader in the Royal Air Force.1
Children of S/Ldr. Damyon Edmund Martin Cayley and Mary Ann Taylor
- Barbara Ann Cayley+2 b. 14 Jun 1945
- Patricia Janis Cayley2 b. 11 Mar 1948
