Albert Jules (also known as Albertus Julius) van Gelder was married to Hendrina Julia Troostwijk. He was a travelling salesmen. The couple lived on the Nieuweweg in Huizum.
NIOD, Records Stichting Sieraden-Comité, box 7HF, file 91
In addition, Jokos files (numbers 7716, 7983) on this family or other family members are at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.The Jokos files reveal that a claim was lodged for compensation for valuables surrendered to the Lippmann-Rosenthal looting bank (L-claim, number 3804/19708).