Klara Freia Oudkerk was the eldest of the three children of Ludovicus Oudkerk and Elsje Oudkerk and was born on 13 April 1904 in Antwerp and where they resided, but at some point they also moved to Sint Denijs, more southerly, where Klara's youngest brother Benjamin Roeland was born in February 1913.
On 27 May 1919, when she was 15 years old, Klara Freia came with her parents, brothers Hermanus Lu…