She obtained degrees from the University of Maryland and the University of Cincinnati. She is the recipient of two Ohio Arts Council Individual Artist Fellowships for fiction. Her stories have appeared in literary magazines and anthologies, including the Southern Indiana Review, YoYo online magazine, and What Mennonites are Thinking. Currently, she is working on a young adult novel about a Mennonite girl in the 1960s. Greta belongs to a writers' group, some of whose members are associated with the Antioch Writers' Workshop. She is an associate member of the Society of Children's Book Writers and Illustrators, and she enjoys gardening and singing alto in the Bach Society of Dayton, Ohio.