Margaret P. Postlethwaite was born in New Zealand on February 17, 1884. While in San Francisco in 1897-1901, Postlethwaite studied at the Mark Hopkins Art Institute. She wed Thomas B. Dean in 1911 and settled on a farm in Walnut Creek, CA. She died in San Francisco on November 29, 1968.
Source: Edan Hughes, "Artists in California, 1786-1940"
SF Call, 11-16-1911.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