Mary Catherine Anne Jacoba Fagel1 
From 27 October 1837, her married name became Mackay.
Child of Mary Catherine Anne Jacoba Fagel and Ænas Mackay, 10th Lord Reay
- Sir Donald James Mackay, 11th Lord Reay2 b. 22 Dec 1839, d. 1 Aug 1921
Lt.-Col. Hugh Neufville Taylor1 
He was awarded the Distinguished Service Order (D.S.O.)1 He gained the rank of Lieutenant-Colonel in the 5th Burmah Regiment.1
- [S1438] Sir William, Bt. Arbuthnot, “re: Arbuthnot and Duff Families,” e-mail message to British and European Nobility Register, 29 August 2005 and later. Hereinafter cited as “re: Arbuthnot and Duff Families.”
Frances Edith Shadforth1 
- [S4567] Bill Norton, “re: Pitman Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 6 April 2010 and 19 April 2011. Hereinafter cited as “re: Pitman Family.”
John Henry Taylor1
Children of John Henry Taylor and Mary Sarah du Faur
- Lt.-Col. Hugh Neufville Taylor1 b. 20 Dec 1859
- Arthur William Neufville Taylor1 b. 1 May 1864, d. 25 Apr 1930
- [S1438] Sir William, Bt. Arbuthnot, “re: Arbuthnot and Duff Families,” e-mail message to British and European Nobility Register, 29 August 2005 and later. Hereinafter cited as “re: Arbuthnot and Duff Families.”
John Francis Hendrik Jacob Ernestus Mackay1 
Children of John Francis Hendrik Jacob Ernestus Mackay and Baroness Margaretha Clara Frances van Lynden
- Æneas Mackay+2 b. 29 Nov 1838, d. 13 Nov 1909
- Theodoor Philip Mackay+2 b. 24 Apr 1840, d. 29 Nov 1922
- Willem Karel Mackay+2 b. 17 Aug 1843, d. 1916
Baroness Margaretha Clara Frances van Lynden1 
From 1835, her married name became Mackay.
Children of Baroness Margaretha Clara Frances van Lynden and John Francis Hendrik Jacob Ernestus Mackay
- Æneas Mackay+2 b. 29 Nov 1838, d. 13 Nov 1909
- Theodoor Philip Mackay+2 b. 24 Apr 1840, d. 29 Nov 1922
- Willem Karel Mackay+2 b. 17 Aug 1843, d. 1916
Æneas Mackay1 
He was Minister of State [The Netherlands].1 He held the office of President, Second Chamber [The Netherlands].1 He held the office of Prime Minister [The Netherlands].1
Child of Æneas Mackay and Baroness Elizabeth Willemina van Lynden
- Eric Mackay, 12th Lord Reay+2 b. 2 Apr 1870, d. 1 Nov 1921
Baroness Elizabeth Willemina van Lynden1 
From 7 July 1869, her married name became Mackay.
Child of Baroness Elizabeth Willemina van Lynden and Æneas Mackay
- Eric Mackay, 12th Lord Reay+2 b. 2 Apr 1870, d. 1 Nov 1921
Eric Mackay, 12th Lord Reay1
He held the position of Chief of the Clan Mackay from on 1 August 1921.1 He succeeded as the 12th Lord Reay, of Reay, co. Caithness [S., 1628] on 1 August 1921.2 He succeeded as the 12th Baronet Mackay [N.S., 1627] on 1 August 1921.2 He succeeded as the Baron Mackay van Ophemert and Zennewijnen [The Netherlands] on 1 August 1921.
Children of Eric Mackay, 12th Lord Reay and Baroness Maria Johanna Bertha Christina van Dedem
- Hon. Maria Christina Elizabeth Mackay2 b. 17 Oct 1904
- Æneas Alexander Mackay, 13th Lord Reay+2 b. 25 Dec 1905, d. 10 Mar 1963
- Hon. Alexander Willem Rynhard Mackay2 b. 7 Dec 1907
- Hon. Eric John William Theodoor Mackay2 b. 7 Jul 1911, d. 27 Feb 1949
Theodoor Philip Mackay1 
He was President of the Chamber of Accounts.1
Children of Theodoor Philip Mackay and Baroness Juliana Anna van Lynden
- Johan Jacob Mackay2 b. 2 Nov 1869, d. 22 Nov 1902
- Constantyn Willem Ferdinand Mackay+2 b. 31 Dec 1870, d. 5 Feb 1955
- Æneas Mackay+2 b. 1 Jan 1872, d. 30 Jul 1932
- Margaretha Clara Françoise Mackay2 b. 16 Jan 1873, d. 5 Oct 1907
- Edward Mackay+2 b. 23 Dec 1873, d. 18 Oct 1950
- Maria Jacoba Mackay2 b. 1 Aug 1875, d. 16 Nov 1964
- Baron Dirk Rijnhard Johan Mackay+2 b. 19 Dec 1876, d. 11 Mar 1960
- Daniel Mackay+2 b. 17 Mar 1878, d. 21 Mar 1962
- Norman Mackay2 b. 7 Mar 1882, d. 19 Aug 1963