Alice Adolphine Barones van Neukirchen genaamd Nyvenheim1 
From 11 November 1897, her married name became Loudon.1
Child of Alice Adolphine Barones van Neukirchen genaamd Nyvenheim and Frederik Willem Jacob Loudon
- Hugh Auguste Loudon1 b. 26 Sep 1898, d. 4 Aug 1954
Frederik Baron van Neukirchen genaamd Nyvenheim1 
Child of Frederik Baron van Neukirchen genaamd Nyvenheim and Katharina Payens
- Alice Adolphine Barones van Neukirchen genaamd Nyvenheim+1 b. 10 Jan 1874, d. 17 Jun 1940
Katharina Payens1 
Child of Katharina Payens and Frederik Baron van Neukirchen genaamd Nyvenheim
- Alice Adolphine Barones van Neukirchen genaamd Nyvenheim+1 b. 10 Jan 1874, d. 17 Jun 1940
Gustaaf Frederik Willem Baron van Neukirchen genaamd Nyvenheim1 
Children of Gustaaf Frederik Willem Baron van Neukirchen genaamd Nyvenheim and Frederique Louise Wilhelmine Huyssen van Kattendijke
- Barones Marie Christine Catharine Neukirchen genaamd Nyvenheim2 b. 26 Feb 1843, d. 19 Dec 1894
- Frederik Baron van Neukirchen genaamd Nyvenheim+1 b. 7 Aug 1845, d. 24 Dec 1871
- [S3268] Hans Harmsen, “re: Chester Family,” e-mail message to BENR, 21 August 2008. Hereinafter cited as “re: Chester Family.”
- [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.”
Frederique Louise Wilhelmine Huyssen van Kattendijke1 
Children of Frederique Louise Wilhelmine Huyssen van Kattendijke and Gustaaf Frederik Willem Baron van Neukirchen genaamd Nyvenheim
- Barones Marie Christine Catharine Neukirchen genaamd Nyvenheim b. 26 Feb 1843, d. 19 Dec 1894
- Frederik Baron van Neukirchen genaamd Nyvenheim+1 b. 7 Aug 1845, d. 24 Dec 1871
Maria Gravin van Rechteren1 
Hugh Auguste Loudon1 
Martha Emilie Philipse1 
From 21 March 1945, her married name became Loudon.1
Louise Wilhelmina Fuchter1 
Her married name became Loudon.1
Children of Louise Wilhelmina Fuchter and James Hope Loudon
- Constance Loudon+1 b. 18 Feb 1897, d. 17 Jul 1939
- Jonkheer Francis William Hope Loudon+1 b. 13 Aug 1907, d. 22 Aug 1985
Willem Constantijn Hope Loudon1 
Children of Willem Constantijn Hope Loudon and Jeanne Lucie van der Wyck
- Constant Alexander Hope Loudon+1 b. 26 May 1907, d. 17 Oct 1997
- Alice Frederique Loudon1 b. 21 Dec 1911, d. 12 Nov 2000
