In the same year, by arrangement with Thanhouser, she was seen in Sapho, a Majestic film starring Florence Roberts and Shelley Hull, produced in Los Angeles for release on the Mutual Program.
If most of these bore the Thanhouser label, then she must have played hundreds of minor roles, for Lila Chester appeared in relatively few film credits or publicity notices.
Her most important role with Thanhouser was as Susan Farlow, companion to Florence LaBadie, in the extremely successful serial The Million Dollar Mystery.
A 1918 directory noted that she was 5'5" tall, weighed 123 pounds, and had a fair complexion, titian hair, and blue eyes.
Her home address at the time was 118 West 72nd Street, New York City, and she worked with the World Film Corporation in Fort Lee, New Jersey.