throughout her life, rosine made a significant contribution to theater in australia. in 1925 she was a co-founder of the workers' education association drama league. she was also active in the left-wing new theatre in sydney which was founded in 1932 and was where she could combine her theatrical skills with her social commitment. she acted in many plays, and gained early prominence through playing the leading role in chekhov's "the schoolmistress". rosine also gained a significant reputation through her innovative shakespearean productions. by 1938 she was sufficiently prominent in sydney society to be the subject of an archibald competition painting by joseph wolinski.