George Hailey1 
He was Chief Constable at Clifton, Bedfordshire, EnglandG.1
Child of George Hailey
- George Hailey+1 b. 1716, d. 1760
- [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 140. Hereinafter cited as The New Extinct Peerage.
George Hailey1 
Child of George Hailey
- George Hailey+1 d. 1751
- [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 140. Hereinafter cited as The New Extinct Peerage.
Rhoda Cotes1 
From 1 January 1902, her married name became Hailey.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 140. Hereinafter cited as The New Extinct Peerage.
Reverend S. Cotes1
Child of Reverend S. Cotes
- Rhoda Cotes1 d. 1943
- [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 140. Hereinafter cited as The New Extinct Peerage.
Andreina Alesandra Balzani1 
From 18 December 1896, her married name became Hailey.1 After her marriage, Andreina Alesandra Balzani was styled as Baroness Hailey on 15 July 1936.
Children of Andreina Alesandra Balzani and William Malcolm Hailey, 1st and last Baron Hailey
- Gemma Hailey1 b. 5 Apr 1898, d. 10 Oct 1922
- Hon. Alan Balzano Hailey1 b. 1900, d. Feb 1943
- [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 141. Hereinafter cited as The New Extinct Peerage.
Conte Hannibale Balzani1
Child of Conte Hannibale Balzani
- Andreina Alesandra Balzani+1 d. 1939
- [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 141. Hereinafter cited as The New Extinct Peerage.
Hon. Alan Balzano Hailey1 
- [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 141. Hereinafter cited as The New Extinct Peerage.
Gemma Hailey1 
- [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 141. Hereinafter cited as The New Extinct Peerage.
- [S155] Peter Townend, editor, Burke’s Peerage and Baronetage, 104th edition (London, U.K.: Burke’s Peerage Ltd, 1967), page 1130. Hereinafter cited as Burke’s Peerage, 104th ed.
Hammett Hailey1 
Children of Hammett Hailey and Maria Coelia Clode
- Beatrice Mary Hailey1 d. 7 Aug 1957
- Ethel Maria Hailey1 d. 16 Apr 1921
- Violet Madeline Hailey1
- Hammett Reginald Clode Hailey1 b. 25 May 1869, d. 25 Dec 1960
- Rupert Clode Hailey1 b. 29 Dec 1870, d. 12 Mar 1960
- William Malcolm Hailey, 1st and last Baron Hailey+1 b. 15 Feb 1872, d. 1 Jun 1969
- [S155] Peter Townend, editor, Burke’s Peerage and Baronetage, 104th edition (London, U.K.: Burke’s Peerage Ltd, 1967), page 1130. Hereinafter cited as Burke’s Peerage, 104th ed.
Maria Coelia Clode1 
From 4 August 1864, her married name became Hailey.1
Children of Maria Coelia Clode and Hammett Hailey
- Beatrice Mary Hailey1 d. 7 Aug 1957
- Ethel Maria Hailey1 d. 16 Apr 1921
- Violet Madeline Hailey1
- Hammett Reginald Clode Hailey1 b. 25 May 1869, d. 25 Dec 1960
- Rupert Clode Hailey1 b. 29 Dec 1870, d. 12 Mar 1960
- William Malcolm Hailey, 1st and last Baron Hailey+1 b. 15 Feb 1872, d. 1 Jun 1969
- [S155] Peter Townend, editor, Burke’s Peerage and Baronetage, 104th edition (London, U.K.: Burke’s Peerage Ltd, 1967), page 1130. Hereinafter cited as Burke’s Peerage, 104th ed.
