Julia Davinia Butter1
- [S466] Notices, The Telegraph, London, UK, 1 February 2007. Hereinafter cited as The Telegraph.
Felix Calvert1 
He lived at Thames Street, London, EnglandG.4
Children of Felix Calvert and Elizabeth Ladbroke
- Nicolson Calvert+2 b. 15 May 1764, d. 13 Apr 1841
- Felix Calvert2 b. 9 Jul 1765
- Robert Calvert2 b. 4 Sep 1766, d. Apr 1821
- Charles Calvert+1 b. 30 Aug 1768, d. 8 Sep 1832
- Lucy Calvert2 b. 5 Jun 1770
- Walter Calvert2 b. 2 Oct 1772, d. 6 Dec 1842
- Harriott Calvert2 b. 2 Aug 1775
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
- [S7358] Kenneth Hewitt, “re: Hewett Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 12 December 2014. Hereinafter cited as “re: Hewett Family.”
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/, sys 27 July 1763.
- [S1541] Beatrice Potter, “re: Lady Isabella Somerset,” e-mail message to BENR, 30 November 2005. Hereinafter cited as “re: Isabella Somerset.”
Elizabeth Ladbroke1 
From 24 July 1763, her married name became Calvert.1
Children of Elizabeth Ladbroke and Felix Calvert
- Nicolson Calvert+2 b. 15 May 1764, d. 13 Apr 1841
- Felix Calvert2 b. 9 Jul 1765
- Robert Calvert2 b. 4 Sep 1766, d. Apr 1821
- Charles Calvert+1 b. 30 Aug 1768, d. 8 Sep 1832
- Lucy Calvert2 b. 5 Jun 1770
- Walter Calvert2 b. 2 Oct 1772, d. 6 Dec 1842
- Harriott Calvert2 b. 2 Aug 1775
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
- [S7358] Kenneth Hewitt, “re: Hewett Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 12 December 2014. Hereinafter cited as “re: Hewett Family.”
- [S1541] Beatrice Potter, “re: Lady Isabella Somerset,” e-mail message to BENR, 30 November 2005. Hereinafter cited as “re: Isabella Somerset.”
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/, sys 27 July 1763.
Sir Robert Ladbroke1 
He held the office of Alderman of the City of London in 1741.3 He held the office of High Sheriff of London in 1743.3 He was appointed Knight on 18 February 1744/45.3 He held the office of Lord Mayor of London in 1747.2 He held the office of Member of Parliament (M.P.) for London between 1754 and 1770.2 In 1770 he founded the private bank of Ladbroke & Company, London (later Ladbroke, Gillman & Kingscote before merging with Glyn, Hallifax, Mills & Company.)2 His last will was dated 27 August 1773.3
Children of Sir Robert Ladbroke and Elizabeth Brown
- Sarah Ladbroke3 b. 14 Oct 1736, d. c 27 Mar 1737
- Robert Ladbroke+2 b. 1739, d. 1814
- Catherine Ladbroke3 b. 28 Oct 1741, d. c 22 Jun 1742
- Mary Ladbroke2 b. c 1742, d. 17 Aug 1816
- Elizabeth Ladbroke+1 b. 13 Dec 1743, d. 14 Apr 1777
- Catherine Augusta Ladbroke3 b. 29 Aug 1748, d. c 7 Oct 1749
- Martha Ladbroke3 b. 6 Nov 1748
- Ann Ladbroke2 b. 1 Apr 1752
- George Ladbroke3 b. 6 Jul 1753
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
- [S1541] Beatrice Potter, “re: Lady Isabella Somerset,” e-mail message to BENR, 30 November 2005. Hereinafter cited as “re: Isabella Somerset.”
- [S7358] Kenneth Hewitt, “re: Hewett Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 12 December 2014. Hereinafter cited as “re: Hewett Family.”
Felix Calvert1 
He lived at Furneaux Pelham, Hertfordshire, EnglandG.1
Child of Felix Calvert and Christian Nicolson
- Felix Calvert+1 b. 1735, d. 23 Mar 1802
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
Christian Nicolson1 
Her married name became Calvert.1
Child of Christian Nicolson and Felix Calvert
- Felix Calvert+1 b. 1735, d. 23 Mar 1802
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
Josias Nicolson1
Child of Josias Nicolson
- Christian Nicolson+1 d. Nov 1759
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
William Calvert1 
He lived at Furneaux Pelham, Hertfordshire, EnglandG.3
Child of William Calvert and Honor Calvert
- Felix Calvert+3 b. 17 Jul 1693, d. 15 Jun 1755
- [S37] BP2003 volume 3, page 3990. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
Honor Calvert1 
Child of Honor Calvert and William Calvert
- Felix Calvert+2 b. 17 Jul 1693, d. 15 Jun 1755
- [S37] BP2003 volume 3, page 3990. See link for full details for this source. Hereinafter cited as. [S37]
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
- [S37] BP2003. [S37]
Peter Calvert1 
He lived at Nine Ashes, Hunsdon, Hertfordshire, EnglandG.1
Children of Peter Calvert and Honor Bates
- Jane Calvert2 d. c Apr 1676
- Susan Calvert2
- Peter Calvert2 b. c 1669, d. c Sep 1689
- Honor Calvert+2 b. 1671, d. 31 Jan 1724
- Felix Calvert+2 b. c Mar 1676, d. 8 Apr 1713
- [S37] BP2003 volume 3, page 3990. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.