I think that my great-grandfather (Sam Bergerson)and your grandfather (Isidore Bergerson)were brothers.Please see the exchange of messages on the forum between me and Eric.
Isidore>Lillian>YOU (Lillian's siblings were David,Mollie, Ruth, and Goldie) Sam>Philip> Sol>ME Sam>Isidore>Harry>ERIC
So:My grandfather and Eric's grandfather (Philip and Isidore)were brothers.My father and Eric's father (Sol and Harry) were first cousins.Eric and I are second cousins. If I've identified you correctly (David, Mollie, Ruth, and Goldie were your uncle and aunts), then (I think I have this right):My grandfather and Eric's grandfather were Lillian's first cousins. My father and Eric's father (Sol and Harry) were your 2nd cousins. Eric and I are your 2nd cousins, once removed.Please let me know if I've misidentified you.Dan