In this article Patricia Lufkin examines the work of Margaret Macnamara, a remarkable feminist playwright whose work has fallen into obscurity but who deserves attention as an important female participant in the Independent Theatre Movement and the Fabian Society. Macnamara’s associations and collaborations with key figures of the time, including George Bernard Shaw, are explored, and her progressive thought and participation in key organizations demonstrated. Importantly, Lufkin analyzes Macnamara’s play The Gates of the Morning (1908), highlighting its feminist critique of religion and its patriarchal influence. The critical response to her work was mixed, yet both positive and hostile reviews acknowledged that the play was a competent and stirring example of the new drama of progressive ideas, and helped to bring the ‘woman question’ to the forefront of people’s minds. Patricia Lufkin received her PhD from Louisiana State University, and is now teaching at Arkansas State University Mid-South. Her research focuses on early twentieth-century British theatre, most significantly on the life and work of Macnamara and Samuel Beckett.