Perele's name was found as Marcel M.V.M. Sandelowsky in the archives of Westerbork. His parents survived Bergen-Belsen.
De officiele naam van Peterle staat in de archieven van Westerbork vermeld als . Peterle's ouders hebben de oorlog overleefd.
In September 1946, an obituary was placed in the Nieuw Israëlietisch Weekblad by children and other relatives for their father and father-in-law George…