Simon Knap was born on 28 June 1926 as illegitimate son of Deborah Knap, a daughter of Simon Knap and Hendrika Wolffers. He was a grandson of Simon Knap and lived in with his grandparents at Bannierstraat 110 in Rotterdam, but was under supervision of the Wellfare Board of Rotterdam. At the family registration card from the Rotterdam Archive of grandfather Simon Kanp it is to read that “the mother…