Countess Lucie Catinka Christiane Julie Haugwitz-Hardenberg-Reventlow1 
From before 1955, her married name became Douglas-Boswell.1 From 7 July 1955, her married name became Mackay.1
- [S37] BP2003 volume 2, page 2031. 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.
Count Curt Ludwig Haugwitz-Hardenberg-Reventlow1
Child of Count Curt Ludwig Haugwitz-Hardenberg-Reventlow
- Countess Lucie Catinka Christiane Julie Haugwitz-Hardenberg-Reventlow1 b. c 1912, d. 31 Aug 2003
- [S37] BP2003 volume 2, page 2031. See link for full details for this source. Hereinafter cited as. [S37]
John Patrick Douglas-Boswell1
- [S37] BP2003 volume 2, page 2031. See link for full details for this source. Hereinafter cited as. [S37]
Hon. James Lyle Mackay1 
He was educated at Eton College, Windsor, Berkshire, EnglandG.1
- [S37] BP2003 volume 2, page 2031. See link for full details for this source. Hereinafter cited as. [S37]
Lady Patricia Margery Kathleen Mackay1 
From 12 January 1938, her married name became Hibbert.1 From 24 July 1951, her married name became Fairweather.2
Children of Lady Patricia Margery Kathleen Mackay and Major Hugh Washington Hibbert
- Bridget Anne Hibbert+2 b. 1939, d. 1976
- Elizabeth Caroline Hibbert+2 b. 9 Jun 1943
- Michael Washington Hibbert+2 b. 1946
Frederick Fairweather1
Child of Frederick Fairweather
- Major Reginald Fairweather1 d. 12 Jan 1959
Colonel Frank Tompkins1
Child of Colonel Frank Tompkins
- Colonel Francis Parker Tompkins1 d. 26 Jun 1996
- [S37] BP2003 volume 2, page 2031. See link for full details for this source. Hereinafter cited as. [S37]
Lady Rosemary Mackay1
From 19 January 1957, her married name became French.1 She lived in 2003 at Little Offley, Hitchin, Hertfordshire, EnglandG.1
Children of Lady Rosemary Mackay and Francis Martin French
- Ewan Alexander Francis French1 b. 2 Apr 1959, d. c 1980
- Anna-Louise Rosemary French1 b. 23 Mar 1961
- Nicola Catharine French1 b. 16 Apr 1967
- Kirsty Elizabeth French1 b. 9 Dec 1970
- [S37] BP2003 volume 2, page 2031. See link for full details for this source. Hereinafter cited as. [S37]
Francis Martin French1
Children of Francis Martin French and Lady Rosemary Mackay
- Ewan Alexander Francis French1 b. 2 Apr 1959, d. c 1980
- Anna-Louise Rosemary French1 b. 23 Mar 1961
- Nicola Catharine French1 b. 16 Apr 1967
- Kirsty Elizabeth French1 b. 9 Dec 1970
- [S37] BP2003 volume 2, page 2031. See link for full details for this source. Hereinafter cited as. [S37]
Francis Holroyd French1
Child of Francis Holroyd French
- [S37] BP2003 volume 2, page 2031. See link for full details for this source. Hereinafter cited as. [S37]
