I came across a reference to Selma Prost on Geni, and believe she might be the sister of David Gottlieb of London. My husband and I are writing a 'mini' biography of David in connection with a bibliographic study of his publishing companies. We know that David's sister was Selma, that she married someone called Prost and that their mother was Lotte (possibly spelled Loti).
If this is indeed the same David, we would be very grateful for any biographical information anyone might have about him (and/or his family) such as where he was born, his father's occupation, what line of business he went into after his publishing career, etc.
We would be happy to share information we have about David if it is the same person.