Robert Lucas1
Child of Robert Lucas
- Emily Martha Lucas+2 d. 12 Aug 1884
Emily Martha Lucas1 
From 10 August 1841, her married name became Cook.
Children of Emily Martha Lucas and Sir Francis Cook, 1st Bt.
- Sir Frederick Lucas Cook, 2nd Bt.+2 b. 21 Nov 1844, d. 21 May 1920
- Emily Jane Cook2 b. 8 Jan 1849, d. 6 Jan 1915
- Wyndham Francis Cook+2 b. 21 Aug 1860, d. 17 May 1905
Christopher Nott1
Child of Christopher Nott
- [S37] BP2003 volume 1, page 881. See link for full details for this source. Hereinafter cited as. [S37]
Wyndham Francis Cook1 
Children of Wyndham Francis Cook and Frederica Evelyn Stillwell Freeland
- Humphrey Wyndham Cook+2 b. Mar 1893, d. 1978
- Cecil Emily Freda Wyndham Cook2 b. 1 Jul 1896
- Ursula Maud Wyndham Cook2 b. 20 Nov 1900
F. J. Freeland1
Child of F. J. Freeland
- Frederica Evelyn Stillwell Freeland+2 d. 9 Jan 1925
Frederica Evelyn Stillwell Freeland1 
From 22 November 1887, her married name became Cook.
Children of Frederica Evelyn Stillwell Freeland and Wyndham Francis Cook
- Humphrey Wyndham Cook+2 b. Mar 1893, d. 1978
- Cecil Emily Freda Wyndham Cook2 b. 1 Jul 1896
- Ursula Maud Wyndham Cook2 b. 20 Nov 1900
Humphrey Wyndham Cook1 
He was educated at Harrow School, Harrow, London, EnglandG.1 He was educated at Christ Church, Oxford University, Oxford, Oxfordshire, EnglandG.1
Child of Humphrey Wyndham Cook and Gillian Hedderly
- William Wyndham Humphrey Cook2 b. 1928
Frederick William Hedderly1
Child of Frederick William Hedderly
Gillian Hedderly1
From 18 August 1926, her married name became Cook.
Child of Gillian Hedderly and Humphrey Wyndham Cook
- William Wyndham Humphrey Cook2 b. 1928
William Wyndham Humphrey Cook1