Edward Mackay1 
Child of Edward Mackay and Ina Petronella à Nijeholt
- Catharina Margaretha Elisabeth Mackay+2 b. 4 Oct 1903, d. 9 Jan 1999
Petrus Lycklama à Nijeholt1
Child of Petrus Lycklama à Nijeholt
- Ina Petronella à Nijeholt+2 d. 10 Oct 1903
Ina Petronella à Nijeholt1 
From 18 June 1902, her married name became Mackay.
Child of Ina Petronella à Nijeholt and Edward Mackay
- Catharina Margaretha Elisabeth Mackay+2 b. 4 Oct 1903, d. 9 Jan 1999
Catharina Margaretha Elisabeth Mackay1 
From 27 September 1923, her married name became Désandré.
Children of Catharina Margaretha Elisabeth Mackay and Ernest Johannes Désandré
- Edward Ernest Désandré2 b. 1929
- Ina Catherina Elizabeth Désandré2 b. 1932
Georges Henri Julien Désandré1
Child of Georges Henri Julien Désandré
- Ernest Johannes Désandré+2 d. 1988
Ernest Johannes Désandré1 
Children of Ernest Johannes Désandré and Catharina Margaretha Elisabeth Mackay
- Edward Ernest Désandré2 b. 1929
- Ina Catherina Elizabeth Désandré2 b. 1932
Edward Ernest Désandré1
Ina Catherina Elizabeth Désandré1
Abraham Jacob Blaauw1
Child of Abraham Jacob Blaauw and Jonkvrouw Anna Maria Backer
- Johanna Elisabeth Blaauw+3 b. 25 Oct 1886, d. 15 Nov 1920
- [S37] BP2003 volume 3, page 3303. See link for full details for this source. Hereinafter cited as. [S37]
- [S6448] Bram Sonneveld, “re: Oppenheimer Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 27 November 2012. Hereinafter cited as “re: Oppenheimer Family.”
- [S37] BP2003. [S37]
Johanna Elisabeth Blaauw1 
From 5 July 1906, her married name became Mackay.
Children of Johanna Elisabeth Blaauw and Baron Dirk Rijnhard Johan Mackay
- Helene Gérardine Mackay+3 b. 7 Jun 1907, d. 20 Mar 2001
- Johan Jacob Mackay+3 b. 12 Sep 1909, d. 27 Jan 1995
- Anna Maria Mackay+3 b. 17 Mar 1913, d. 31 Mar 1997
- Baron Johan Hugo Mackay+3 b. 26 Nov 1914
- Eric Rynhard Alexander Mackay+3 b. 21 May 1917
- [S37] BP2003 volume 3, page 3303. See link for full details for this source. Hereinafter cited as. [S37]
- [S6448] Bram Sonneveld, “re: Oppenheimer Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 27 November 2012. Hereinafter cited as “re: Oppenheimer Family.”
- [S37] BP2003. [S37]
