Ewald received her BA in 1974 from Antioch College, Yellow Springs, Ohio. She also studied at Massachusetts Institute of Technology in 1970-71.
Since 1976 the photographer has directed the Mountain Photography Workshop at Appalshop in Whitesburg, Kentucky. From 1976 to 1979 she was an artist-in-residence for the Kentucky Arts Commission, teaching photography and film-making in three Appalachian schools. In 1971 she started (and operated, until 1973) the Half Moon Gallery (now the Half Moon Photography Workshop) in London, one of the first galleries in England devoted to photography.
She received individual grants in 1978 from Joint Foundation Support for Women and from the Kentucky Arts Commission and was awarded an NEA Photography Exhibition Aid grant in 1977, and an NEA Photographic Survey grant in 1976.
Working with a large-format camera, Ewald is most interested in creating deep, sequential portraits of my intimate friends and family.
Ewald is a member of SPE and has been on the Appalshop board of directors since 1976.