From 1937 to 1949, Gray wrote and acted for the Sydney
New Theatre which had the reputation of being left wing and
avant-garde, being modelled on the new radical and political theatre movement blossoming in the United States. In 1942, Gray was appointed as the first paid Australian playwright-in-residence. In reviewing plays, L. L. Woolacott, critic and editor of the Sydney
Triad magazine, described Gray as "one of the most significant and talented Australian playwrights whose work has so far been produced here". Gray's play, with its themes of "feminism and the saving of the environment", did not have popular appeal in a very conservative era with only one amateur performance recorded (New Theatre, Adelaide 1957). In the eighties the play was turned into a light-hearted musical, called ''A Bit O' Petticoat (1982)'', with music composed by
Peter Pinne. ==Major stage plays==