Mabel Christian Forbes1 
From 10 March 1922, her married name became Whitson. She held the office of Justice of the Peace (J.P.) for Edinburgh in 1933.1
Thomas Whitson1
Child of Thomas Whitson
- Sir Thomas Barnby Whitson2 d. 1 Oct 1948
Sir Thomas Barnby Whitson1 
He was registered as a Chartered Accountant (C.A.)1 He was appointed Fellow, Royal Society of Edinburgh (F.R.S.E.)1 He held the office of Deputy Lieutenant (D.L.)1 He was awarded the honorary degree of Doctor of Law (LL.D.) by Edinburgh University, Edinburgh, Midlothian, ScotlandG.1 He held the office of Lord Provost of Edinburgh between 1929 and 1932.1
Louis Forbes1 
He was with the Madras Civil Service.1
Child of Louis Forbes and Emma Frances Colbeck
- Florence Mary Emma Forbes2 d. 13 Nov 1926
Lt.-Col. Henry Colbeck1,2
Child of Lt.-Col. Henry Colbeck
- Emma Frances Colbeck+3 b. c Jul 1833, d. 16 Feb 1900
Emma Frances Colbeck1 
From 30 April 1853, her married name became Forbes.
Child of Emma Frances Colbeck and Louis Forbes
- Florence Mary Emma Forbes3 d. 13 Nov 1926
Florence Mary Emma Forbes1 
Captain James Arthur Forbes1 
He gained the rank of Burma War in 1852.1 He fought in the Crimean War between 1854 and 1856, Baltic Campaign.1 He held the office of County Alderman (C.A.) for Northumberland.1 He gained the rank of Captain in the Royal Navy.1 He held the office of Justice of the Peace (J.P.) for Berwickshire.1
Children of Captain James Arthur Forbes and Fearne Jemima Kinnear
- Mary Constance Forbes2 d. 11 Mar 1959
- Emily Fearne Anne Forbes2 d. 14 Apr 1941
- Arthur George Forbes+2 b. Dec 1871, d. 2 Dec 1922
- Captain Charles Hay Forbes+2 b. Sep 1873, d. 7 Nov 1919
- William Samuel Forbes+2 b. Sep 1877
- A/Cdre. James Louis Forbes+2 b. 26 Jan 1880, d. 1965
- Colonel Reginald Michael Norman Forbes2 b. 29 Sep 1881, d. 23 Jan 1969
James Kinnear1
Child of James Kinnear
- Fearne Jemima Kinnear+2 d. 25 Jan 1904
Fearne Jemima Kinnear1 
From before 1867, her married name became Aytoun.1 From 10 July 1867, her married name became Forbes.
Children of Fearne Jemima Kinnear and Captain James Arthur Forbes
- Mary Constance Forbes2 d. 11 Mar 1959
- Emily Fearne Anne Forbes2 d. 14 Apr 1941
- Arthur George Forbes+2 b. Dec 1871, d. 2 Dec 1922
- Captain Charles Hay Forbes+2 b. Sep 1873, d. 7 Nov 1919
- William Samuel Forbes+2 b. Sep 1877
- A/Cdre. James Louis Forbes+2 b. 26 Jan 1880, d. 1965
- Colonel Reginald Michael Norman Forbes2 b. 29 Sep 1881, d. 23 Jan 1969