When did Mabel Herriman die?

On September 29, 1931, Mabel Herriman died from injuries sustained in an automobile collision. She was the wife of cartoonist George Joseph Herriman [August 22, 1880-April 25, 1944]. Their daughter Bobbie died at the age of 30, in 1939.
On September 29, 1931, Mabel Herriman died from injuries sustained in an automobile collision. She was the wife of cartoonist George Joseph Herriman [August 22, 1880-April 25, 1944]. Their daughter Bobbie died at the age of 30, in 1939.