Charlotta Bass and other guests listen to a musician performing at a birthday party for the Independent Progressive Party of California, circa 1949, Los Angeles

Photograph of an unidentified musician performing at a birthday celebration for the Independent Progressive Party (IPP) of California. Charlotta Bass, editor of the California Eagle, is seated third from the right. IPP was formed on June 15, 1948, when the Progressive Citizens of America, Southern California chapter, merged with the Independent Progressive Party of California. The newly merged party supported Henry Wallace's presidential campaign in 1948.