My father's father Welhelm Ganschow came from Hamburg, Germany and settled in Staten Island N.Y..He married Gertrude DeBow and had one son, my father. We know nothing about Wilhelm family accept they might have been Jewish shopkeepers. I tried to find out at the Holcust memorial if there were any Ganschows that lost their lives. When I was in Buffalo NY there were 5 Ganschows listed in the directory. I called one family who said they would call when a Ganschow family reunion would be. But never heard from them. I understand there is a Ganschow family reunion every year up there. Hope this little bit can help.