Information on the family Perel can be read in the published diary of Ina Boudier-Bakker, Met de tanden op elkaar. Dagboeknotities 40-45. (Amsterdam 1975) 13, 48, 57, 61, 74, 90, 96, 121 en 128. Ina Boudier-Bakker lived next-door to the family Perel.
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In addition, a Jokos file (number 53524) 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 9208/16269).