David Herman Woudstra was a son of Aaltje Woudstra-Salomons. Together with one of his siblings he esteblished in 1933 the 'Hollandia Cracker en Matze' Factory.
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In addition, a Jokos file (number 3960) 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 valuables surrendered to the Lippmann-Rosenthal looting bank (L-claim, number 13309/15941).