From Wikipedia

Dot Farley (February 6, 1881 – May 2, 1971) was an American film actress. She appeared in 280 films between 1910 and 1950. Mainly known for her roles in short comedies, prolific with Mack Sennett in the silent days; she was later notable as the Mother-in-law of Edgar Kennedy in most of his series of short films at the RKO studios. She was born in Chicago, Illinois and died in South Pasadena, California.