Mary B. Ertz was active/lived in California. Mary Ertz is known for Painting.
Born in New York in 1883. While living in Berkeley, Ertz studied at the Mark Hopkins Art Institute in 1900-01.Nearly 20,000 biographies can be found in Artists in California 1786-1940 by Edan Hughes and is available for sale ($150). For a full book description and order information please click here