1908 Mueller Map of Devon & Berwyn

1913 Mueller Map of Devon

Model for residence of George Wharton Pepper in Devon, PA. March 1910 edition

Example of Classified from January 1, 1910. Philadelphia Inquirer.
DEVON  1 and a half miles south of station. 90 acres. Will divide into building sites. Best of surroundings. An ideal spot for a gentleman’s country place.
See. HS STILLWAGON  100 Arcade Building, Philadelphia