She is raising her granddaughter"s son, so is trying to keep in touch. We don't know if the grandmother has any other relatives.
Bless the grandmother; she is trying to do the right thing for her great grandson.
Liza's mother sang "Give My Regards to Broadway" in her final scheduled concerts in New York City during Christmas week in 1967 at Felt Forum, part of Madison Square Garden. She also sang "The Battle Hymn of the Republican" with her younger kids.