Joseph's mother was Louisa, not Jennie (which is the name she went by). Joseph (named after Ramon's father) was the oldest of Ramon's sons and the only child who went back and forth between Ramon's two families. Otherwise, they were estranged. The other 4 children from the Manhattan family were Barbara, Antoinette (called Nettie), Ramona (called Rae) and Adele.
What is your relationship with the family?