This is Mary F. Clifford, a student at Storer College in Harpers Ferry, West Virginia (1906). I think, although I’m not sure, that this is the daughter of J.R. Clifford, West Virginia’s first African American attorney, and original member of the Niagara Movement.
According to this source, Clifford’s daughter Mary delivered the credo at the Harper’s Ferry meeting of the Niagara Movement in 1906. The name and location are right, so it’s possible that the Mary Clifford in the photograph is Clifford’s daughter. Either way, her outfit is lovely.
Submitted by Molly Dolan, Digital Initiatives and Scholarly Communications Librarian at West Virginia University Libraries (Morgantown, West Virginia)