I want to know the answer to the following question:
Along with Donald O'Connor and Bing Crosby, with whom did Gloria Jean star?
All the background I'm provided with is that "When Pasternak stopped producing Durbin's pictures, and she outgrew her screen persona and pursued more dramatic roles, the studio signed 13-year-old Gloria Jean for her own series of Pasternak musicals from 1939; she went on to star with Bing Crosby, W. C. Fields, and Donald O'Connor.". Is that enough to answer the question?
Answer: yes