Leonardus Antonius van Velzen
Father
Johannes Jacobus Maria van Velzen (29 October 1894)
Mother
Cornelia Petronella Oudejans (6 August 1891)
Siblings
Catharina Cornelia Maria van Velzen (27 May 1929)
Agnes Louisa Maria van Velzen (14 November 1926)
Nicolaas Willem van Velzen (12 August 1924)
Martien Jozef van Velzen (5 March 1921)