Our member, Hartley Garshowitz, has a web site for his family. You can find it here.
It was once very detailed but some material has been removed because of the security concerns of some family members.
I first met Hartley at a JGS Toronto workshop. As soon as I saw him I said, "You look like my cousin."
"I'm not related to you," he replied. But an hour later, in a Birds-of-a-Feather meeting led by Stanley Diamond, we went around the room announcing the family names we were researching and, indeed, Hartley turned out to be my first cousin's second cousin from the other side of the family.