About Moses מווילנא, [undocumented]
Rosenstein, Unbroken Chain (1990), page 384:
G13.1. Moses Rabinowicz, married the daughter of Meir Kalisyner and his wife, daughter of Moses, son of Elijah, the Gaon of Vilna.
Neil says "The info is based on oral tradition of the late Leon Weisbrem, whom I met and knew personally. I cannot vouch for his accuracy and thus there is a footnote that he supplied that link."
Chaim Freedman "The Vilna Gaon did not have a son Moshe. He should be deleted."