unknown daughter Vansittart1 
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 281. Hereinafter cited as The New Extinct Peerage.
Clement Arthur Vansittart1 
He gained the rank of officer between 1866 and 1870 in the Pontifical Zouaves.1
Child of Clement Arthur Vansittart and Marguerite Hopkins
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 281. Hereinafter cited as The New Extinct Peerage.
Marguerite Hopkins1
Her married name became Vansittart.1
Child of Marguerite Hopkins and Clement Arthur Vansittart
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 281. Hereinafter cited as The New Extinct Peerage.
John M. Hopkins1
Child of John M. Hopkins
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 281. Hereinafter cited as The New Extinct Peerage.
Clement Percival Vansittart1
Child of Clement Percival Vansittart and Doreen K. Miller
- David Arthur Nicholas Vansittart+1 b. 29 Nov 1931
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 281. Hereinafter cited as The New Extinct Peerage.
Doreen K. Miller1
From 26 April 1928, her married name became Vansittart.1
Child of Doreen K. Miller and Clement Percival Vansittart
- David Arthur Nicholas Vansittart+1 b. 29 Nov 1931
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 281. Hereinafter cited as The New Extinct Peerage.
David Arthur Nicholas Vansittart1
He gained the rank of officer in the Oxfordshire and Buckingshire Light Infantry.1
Child of David Arthur Nicholas Vansittart and Clare B. Conyers
- Rupert Nicholas Vansittart2 b. 10 Feb 1958
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 281. Hereinafter cited as The New Extinct Peerage.
- [S8455] Ruth Tootill, “re: Vansittart Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 20 December 2017. Hereinafter cited as “re: Vansittart Family.”
Clare B. Conyers1
From 4 June 1955, her married name became Vansittart.1
Child of Clare B. Conyers and David Arthur Nicholas Vansittart
- Rupert Nicholas Vansittart2 b. 10 Feb 1958
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 281. Hereinafter cited as The New Extinct Peerage.
- [S8455] Ruth Tootill, “re: Vansittart Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 20 December 2017. Hereinafter cited as “re: Vansittart Family.”
Cyril Bexley Vansittart1 
He was Secret Chamberlain of the Cape and Sword of the Popes Pius IX and Leo XIII.1
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 281. Hereinafter cited as The New Extinct Peerage.
Charlotte Eleanor Vansittart1 
From 4 August 1842, her married name became Pearce-Serocold.1
Child of Charlotte Eleanor Vansittart and Reverend Edward Serocold Pearce-Serocold
- Teresa Eden Pearce-Serocold+2 b. 1846, d. 13 Nov 1918
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 281. Hereinafter cited as The New Extinct Peerage.
- [S35] BLG1965 volume 2, page 521. See link for full details for this source. Hereinafter cited as. [S35]