Mary Horgan Mowbray-Clarke (1874–1962) was an American art critic, writer, publisher, instructor, landscape architect, and the proprietor of The Sunwise Turn, a hotbed of artistic activity and anarchist political thought in New York City during the nineteen-teens and twenties.
She was also the wife of John Frederick Mowbray-Clarke, a sculptor who helped organize of the influential 1913 Armory Show exhibition of modern art.
[5] The bookshop served as an important intellectual and social center for artists, writers, and revolutionary political thinkers in New York.
In addition to selling books, art, textiles, and sculpture, The Sunwise Turn published small editions (including the first edition of The Dance of Siva: Fourteen Indian Essays by Ananda Coomaraswamy, introducing the American public to Indian art and culture, as well as volumes by Witter Bynner, Rainer Maria Rilke, and Lord Edward John Dunsany) and hosted readings and literary events with Robert Frost, Amy Lowell, Lola Ridge, and Alfred Kreymborg.
In 1920, a young Peggy Guggenheim went to work as an unpaid assistant in the shop, absorbing Mowbray-Clarke's influence and being first exposed to the avant-garde artists and writers who would come to shape her world as a patron.