Amanda ("Andy") Zsolnay was the mother of Paul Zsolnay (1895-1961), who founded Paul Zsolnay Verlag in Vienna in 1923-1924. Paul Zsolnay was Werfel's publisher from 1923 to 1938; he was married to Alma's daughter Anna from 1929 to 1935. Andy Zsolnay was at least socially acquainted with Alma Mahler since before the founding of the publishing company; Paul Zsolnay was also friends with Alma's mother and stepfather, Anna and Carl Moll, and her half-sister Maria Eberstaller. Later Andy was friends with both Alma and Franz Werfel. After 1938, Andy Zsolnay was living in England with her son Paul and her granddaughter Alma Zsolnay.
From the description of Correspondence to Alma Mahler and Franz Werfel, 1937-1953. (University of Pennsylvania Library). WorldCat record id: 155864888