Marion Mahony Griffin (b. 1871–d. 1961) excelled in a range of creative endeavors as extensive as the geographic expanse of her long and storied career. Between 1894 and 1949, Mahony worked as an architect, illustrator, planner, real estate developer, community leader, public speaker, and author in the United States, Australia, and India. From the outset, Mahony’s career included solo commissions, independent exhibitions, and lectures as well as work completed in conjunction with contemporaries who, like Mahony, began their careers in Chicago’s Steinway Hall loft. They included, Frank Lloyd Wright, Hermann von Holst, and Mahony’s husband and professional partner Walter Burley Griffin. Critical interest in Mahony’s contribution to architecture and urbanism mirrors the reception of architectural modernism in the United States. At the beginning of the 20th century, Mahony’s work was examined for its potential to herald a new age. In the middle of the century, it was seen as a possible beacon and alternative to European modernism. Since the dawn of the 21st century, and after a period of apathy toward her work, historians and professionals have begun analyzing Mahony’s practice, its conceptual surround, and the history of its reception to reflect on the transnational routes of architectural modernism, biases in the historiography of architecture, and the potential for an ecologically sensitive approach to urbanism. This trajectory of US reactions to Mahony from hope to apathy to renewed interest is curiously also true of popular and scholarly portrayals of Mahony in other countries. It evinces a US-centric approach to understanding Mahony’s work that, until very recently, obscured the importance of anti-colonialism in shaping Mahony’s visual, spatial, and literary practice after 1914 when she began to live and work outside the United States. New scholarship on Mahony’s work has led to popular and professional acknowledgement of her talent: the Marion Mahony Emerging Practitioner Fellowship at the Massachusetts Institute of Technology honors a distinguished alumna; Marion’s List is a public register of women working in architecture and the built environment in Australia, launched by Parlour in collaboration with the National Committee for Gender Equity of the Australian Institute of Architects; the Australian Capital Territory Government named the lookout on Mount Ainslie in Canberra, made famous by a Mahony rendering the Marion Mahony Griffin View; and the Chicago Park District and current residents in Mahony’s old neighborhood named a lakefront beach in Chicago the Marion Mahony Griffin Beach Park.