Isidoor van Daelen, dealer in oils and greases, born 1 June 1889 in Vlaardingen, was a son of Simon van Daelen and Adriana van Stroom. He married in Rotterdam on 11 February 1915 Clasina van Wessel from Maassluis, who was born in 1891 as daughter of Simon van Wessel and Heintje Katan. The couple had two children, namely Simon in 1916 and Henny Henriëtte in 1919.
After their wedding, Isidoor and Cl…