Do you keep old passports that you find of family members? I've come across one that doesn't have a lot of stamps- a couple to Tel Aviv and one to Frankfurt. It was used later on in the life. I'm sure he had many more passports prior to this one.
Just curious what others do.
Grodno and Sokolka: TIKOTZINSKI---> EPSTEIN
Makow: SAFIAN, SAFFIAN, WEINSTEIN