Now that Little Hershey has become a real character, it might be fun to revisit the Greene Family Tree. In dialogue the other night Maggie mentions her 'Nana' as having a house on the beach. To me the most likely relation here is being her maternal grandmother. Josephine Greene's mother. Less likely that Hershel Greene's mother left behind the farm and moved to the beach after her husband died. Also less likely that she's talking about Annette Greene's mother [Beth's Grandmother]. So just as an educated guess, I added this 'Nana' to the family tree through Josephine's line.