George Middleton, a San Francisco automobile dealer, married the beautiful and celebrated prima donna (that's how she was billed), musical comedy actress Beatriz Michelena in San Francisco in 1907. She left the stage for a while, then returned in 1910. In 1912, Middleton, son of a famous family in the lumber business, founded the California Motion Picture Company in San Rafael, north of San Francisco. At first he made promotional films for his auto business, but in 1914 he began to produce dramatic features starring his wife. Salomy Jane still survives and is very impressive. Most of the CMPC movies were destroyed in a fire.
This article from the 15-August-1914 Motography describes an incident which may or may not have occurred while the company was filming Salomy Jane at the Russian River. House Peters was her leading man. In the photo, the beautiful and celebrated prima donna is posing in front of the stump of a redwood tree.