Marx Brothers and Chico appeared less prominently. The two younger brothers, Gummo and Zeppo, never developed their stage characters to the same extent as the elder three. They each left the act to pursue business careers at which they were successful, and for a time ran a large theatrical agency through which they represented their brothers and others. Gummo was not in any of the movies; Zeppo appeared in the first five films in relatively straight (non-comedic) roles. The performing lives of the brothers owed much to their mother Minnie Marx, who acted as their manager until her death in 1929. The
I'll Say She Is autobiography "Harpo Speaks" (1961), Harpo wrote that theatre critic Alexander Woollcott encouraged the Brothers to use their stage names in any subsequent production, which they did, starting with their next Broadway show, "The Cocoanuts" (1925), which was later turned into a film version in 1929. Having toiled on the Vaudeville circuit for nearly a quarter century, this would be the last stage performance that The Marx Brothers would perform for Vaudeville theaters. Once "I'll Say She Is" hit Broadway, they never left. They would have two further Broadway hits, "The Cocoanuts" and "Animal Crackers", which were then filmed in the