1942 Letter
English translation of ‘Geert Groote’ by Susan Verkerk-Wheatley / Anne-Marie Bos
Comment (English) on ‘Geert Groote’ by Marinus van den Berg
1939 Radio speech
1936 Radio speech
1918 Article
1928 Newspaper article
1916 Article
1933 Sermon
Undated (Radio?) Speech
1938 An article in two parts
1922 An article in three parts
1923 Article
1915 An article in two parts
1915 An article in four parts
1914 An article in five parts
1938 Encyclopedic entry
1938 Encyclopedic entry
1938 Encyclopedic entry
English translation of ‘kruiswegmeditaties’ by Susan Verkerk-Wheatley / Anne-Marie Bos
1918 Article
Comment (German) on ‘Dierenbescherming in het schoolprogram’ by Kirstin Zeyer
1935, Niagara Falls Notes
1936 Speech