Minnie Marx came from a family of performers. Her mother was a yodeling harpist and her father a ventriloquist; both were funfair entertainers. Around 1880, the family emigrated to New York City, where Minnie married Sam in 1884. During the early 20th century, Minnie helped her younger brother Abraham Elieser Adolf Schönberg (stage name Al Shean) to enter show business; he became highly successful on vaudeville and Broadway as half of the musical comedy double act Gallagher and Shean, and this gave the brothers an entrée to musical comedy, vaudeville and Broadway at Minnie's instigation. Minnie also acted as the brothers' manager, using the name Minnie Palmer so that agents did not realize that she was also their mother. All the brothers confirmed that Minnie Marx had been the head of the family and the driving force in getting the troupe launched, the only person who could keep them in order; she was said to be a hard bargainer with theatre management.