Emily Mary Loudon1
Jonkheer Hugo Alexander Loudon1 
Children of Jonkheer Hugo Alexander Loudon and Henriette Arnoldine Snouck Hurgronje
- Jonkheer Aarnout Alexander Loudon+1 b. 10 Dec 1936
- Jonkheer Francis John Loudon1 b. 1 Aug 1938
Henriette Arnoldine Snouck Hurgronje1 
From 27 June 1935, her married name became Loudon.1
Children of Henriette Arnoldine Snouck Hurgronje and Jonkheer Hugo Alexander Loudon
- Jonkheer Aarnout Alexander Loudon+1 b. 10 Dec 1936
- Jonkheer Francis John Loudon1 b. 1 Aug 1938
Jonkheer Aarnout Alexander Loudon1
Children of Jonkheer Aarnout Alexander Loudon and Thalita Adine Charlotte Boon
- Jonkheer Hugo Alexander Loudon1 b. 1967
- Jonkheer Hendrik Casijn Loudon1 b. 1971
Thalita Adine Charlotte Boon1
From 7 September 1962, her married name became Loudon.1
Children of Thalita Adine Charlotte Boon and Jonkheer Aarnout Alexander Loudon
- Jonkheer Hugo Alexander Loudon1 b. 1967
- Jonkheer Hendrik Casijn Loudon1 b. 1971
Dr. Hendrik Nicolaas Boon1 
He held the office of Secretary-General of the Ministry for Foreign Affairs [The Netherlands].1
Child of Dr. Hendrik Nicolaas Boon and Charlotte Talitha Mees
- Thalita Adine Charlotte Boon+1 b. 24 Dec 1939
Charlotte Talitha Mees1 
From 4 June 1936, her married name became Boon.1
Child of Charlotte Talitha Mees and Dr. Hendrik Nicolaas Boon
- Thalita Adine Charlotte Boon+1 b. 24 Dec 1939
Jonkheer Hugo Alexander Loudon1
Jonkheer Hendrik Casijn Loudon1
Jonkheer Francis John Loudon1
