Hijman, Maurits, Salomon and Rosine de Haas were the children of Govert de Haas and Henriette Aronson. Their father was later married to Jansje Fierlier.
Amsterdam Municipal Archives; record card of Govert de Haas
A Liro card exists for this person or family. The original cards are kept at the Nationaal Archief (National Archive) at The Hague.
Addition