Joannes Antonius Marie Clerkx 1923–1924 | | |
Henricus Gerardus Joannes Clerkx 1923–1924 | | |
| | Elisabeth Johanna Maria Clerkx 1926–2012 Bernardus Leonardus van Kouwen 1912–2003 | | |
| | H. G. H. M. Clerkx 1929–2009 | | |
Petronella A. H. Clerkx 1930–1998 | | |
| | Johannes Martinus Cornelis Clerkx 1932–2007 Petronella G. M. Cornelissen 1936–2000 | | |
| | Henricus Arnoldus Jacobus Clerkx 1892–1975 Petronella Maria de Gier 1890–1968 | | |