Theodorus Reijnirus Valck Lucassen1 
Frederique Christine Henriette Royaards1 
From 21 December 1922, her married name became Loudon.1
Julio López y Oliván1 
He held the office of Spanish Ambassador to the United Kingdom in 1936.1 He was Registrar in the Permanent Court of International Justice between 1953 and 1960 at The Hague, The Netherlands.1
Beatrice Carpenter Cobb1
From 10 August 1935, her married name became Loudon.1
Children of Beatrice Carpenter Cobb and Dr. Alexander Loudon
- Henriette Beatrice Loudon1 b. 10 Jul 1938
- Alexander Loudon1 b. 23 Mar 1944
Henriette Beatrice Loudon1
Alexander Loudon1
Jonkheer James Loudon1 
On 17 December 1874 he was elevated to the Dutch nobility and granted the hereditary prefix of Jonkheer.1 He held the office of Minister for the Colonies [The Netherlands].1 He held the office of Governor-General of the Dutch East Indies [The Netherlands].1
Children of Jonkheer James Loudon and Louise Wilhelmine Françoise Félicité de Stuers
- Adriana Jacqueline Marie Loudon+1 b. 5 Nov 1856, d. 13 Oct 1919
- Cornelie Loudon1 b. 9 May 1858, d. 7 Sep 1928
- Alexine Susette Loudon1 b. 23 May 1859, d. 6 Oct 1896
- Jonkheer Hugo Loudon+1 b. 18 Jun 1860, d. 6 Sep 1941
- Eugenie Loudon1 b. 6 Oct 1861, d. 23 Oct 1940
- Cecile Loudon1 b. 30 Oct 1862, d. 4 Jan 1936
- Jonkheer Dr. John Loudon1 b. 18 Mar 1866, d. 11 Nov 1955
Louise Wilhelmine Françoise Félicité de Stuers1 
From 20 September 1855, her married name became Loudon.1
Children of Louise Wilhelmine Françoise Félicité de Stuers and Jonkheer James Loudon
- Adriana Jacqueline Marie Loudon+1 b. 5 Nov 1856, d. 13 Oct 1919
- Cornelie Loudon1 b. 9 May 1858, d. 7 Sep 1928
- Alexine Susette Loudon1 b. 23 May 1859, d. 6 Oct 1896
- Jonkheer Hugo Loudon+1 b. 18 Jun 1860, d. 6 Sep 1941
- Eugenie Loudon1 b. 6 Oct 1861, d. 23 Oct 1940
- Cecile Loudon1 b. 30 Oct 1862, d. 4 Jan 1936
- Jonkheer Dr. John Loudon1 b. 18 Mar 1866, d. 11 Nov 1955
Lt.-Gen. François Vincent Henri Antoine Ridder de Stuers1 
On 6 March 1843 he was granted the right to use the title Ridder.1 He was Chief of Defence of the Royal Netherlands East Indies Army between 1853 and 1858.1
Children of Lt.-Gen. François Vincent Henri Antoine Ridder de Stuers and Adriana Jacqueline de Kock
- Jonkheer Eugene Paul Emmanuël Stuers1 b. 1833, d. 13 Aug 1890
- Louise Wilhelmine Françoise Félicité de Stuers+1 b. 21 Jun 1835, d. 14 Apr 1915
Adriana Jacqueline de Kock1 
Children of Adriana Jacqueline de Kock and Lt.-Gen. François Vincent Henri Antoine Ridder de Stuers
- Jonkheer Eugene Paul Emmanuël Stuers1 b. 1833, d. 13 Aug 1890
- Louise Wilhelmine Françoise Félicité de Stuers+1 b. 21 Jun 1835, d. 14 Apr 1915
