Charlotte Anne Coote1 
From 1851, her married name became Sinclair.
John Michael De Courcy Sinclair1 
He gained the rank of Captain in the Royal Artillery.1
Gordon Cornwallis Sinclair1 
He gained the rank of Lieutenant in the Royal Navy.1
Madalina Sinclair1 
From 15 October 1839, her married name became Anderson-Pelham.1 In 1899 she inherited the Sinclair estates from her brother.1
Child of Madalina Sinclair and Captain Hon. Dudley Worsley Anderson-Pelham
- Edith Charlotte Anderson-Pelham+2 d. 26 Mar 1936
Venerable T. S. Grace1 
Child of Venerable T. S. Grace
- Walter Raleigh Grace+1 d. 26 Sep 1950
- [S37] BP2003 volume 3, page 3632. See link for full details for this source. Hereinafter cited as. [S37]
Jean Allardice1 
Anna Allardice1 
James Lockhart of Castle Hill1
He was given the name of James Sinclair at birth. In 1764 he inherited Castle Hill from his uncle George.1
Child of James Lockhart of Castle Hill and Mary Amelia Nisbet
- Robert Lockhart of Castle Hill+2 d. 2 Nov 1850
Walter Nisbet of Nevis1
Child of Walter Nisbet of Nevis
Mary Amelia Nisbet1
From 1773, her married name became Sinclair.
Child of Mary Amelia Nisbet and James Lockhart of Castle Hill
- Robert Lockhart of Castle Hill+2 d. 2 Nov 1850
