Native of Atlanta, Georgia. Resident of McClellanville. Taught photography at Emory University for 17 years. Received the National Endowment for the Arts/Nexus Artist Book Grant, the Southern Arts Foundation Fellowship for Photography and was a fellow at the Ossabaw Island Genesis Project. Received the M.F.A. in photography from Georgia State University School of Art and Design in 1996. Marshall has work in the collections of the High Museum of Art and the Montgomery Museum of Art.