Godschalk Izaak Hijmans was the oldest son of Isaac Godschalk Hijmans and Eveline Rosette van Lissa. Godschalk Izaak studied pharmacy in Leiden and married in Amsterdam to the non-Jewish apothecary's widow Wilhelmina Gezina van Daalen, who already passed away in 1903. He did not remarry.
P. Tammes and V. Brilleman, 'In Memoriam: Joodse slachtoffers (1940-1945), geboren in Wijk bij Duurstede', Het …