1828 - 1901 (73 years)
| Hugh Eric Trevanion Cooper 1884-1912 |
| Hugh Eric Trevanion Cooper | |
| B: | 4 December 1884 |
| Kensington, Royal Borough of Kensington and Chelsea, Greater London, England | |
| D: | 11 September 1912 |
| Hove, Brighton and Hove Unitary Authority, East Sussex, England | |
| Charles Cecil Trevanion Cooper 1886-1950 |
| Charles Cecil Trevanion Cooper | |
| B: | 1886 |
| London, England | |
| D: | 1950 |
| London, England | |
| Arundel Claude Trevanion 1887-1922 |
| Arundel Claude Trevanion | |
| B: | April 1887 |
| Teignmouth, Devon, England | |
| D: | 6 Jan 1922 |
| Kensington, London, England | |
| Hugh Arundell Trevanion Lyon 1859-1918 |
| Hugh Arundell Trevanion Lyon | |
| B: | April 1859 |
| Tywardreath, Cornwall, England | |
| D: | 25 Feb 1918 |
| Battle, Sussex, England | |
 | Florence Eva Cooper, Hon 1855-1916 |
| Florence Eva Cooper, Hon | |
| B: | 24 Aug 1855 |
| Sydney, New South Wales, Australia. | |
| M: | 10 Jun 1882 |
| Piccadilly, London, England | |
| D: | 3 Mar 1916 |
| 39 Harley House, York Gate, Regents Park, Middlesex, England | |
| Hugh Charles Bettesworth Trevanion 1828-1901 |
| Hugh Charles Bettesworth Trevanion | |
| B: | 7 Apr 1828 |
| Kensington, London, England | |
| D: | 20 May 1901 |
| Lowndes Square London England | |
| Frances Bowes Lyon 1832-1903 |
| Frances Bowes Lyon | |
| B: | 8 February 1832 |
| Edinburgh, Midlothian, Scotland. | |
| M: | 2 Feb 1858 |
| London, England | |
| D: | 27 January 1903 |
| 3 Lowndes-square, Middlesex, England. | |
This is of course still a work in progress. Any input is welcome: just email: allan.sargison@gmail.com Ngā mihi maioha Allan
