Leopold S. Jacobs lived at 42 Koninginneweg in Zandvoort.
A.E. Speijer, Zandvoorts wijzen kwamen uit het oosten (Zoetermeer 1995) 103
In addition, a Jokos file (number 7793) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.The Jokos file reveals that a claim was lodged for compensation for looted securities or bonds. (W-claim, number C4/1017).