[2] She had five brothers; Elmer S., Harold, Wilson Mantor, Harry Vincent, and Calvin S. Warmbrodt, four of whom died in infancy.

[4] Sothern was a seasoned actress by the time she made her Broadway debut in The Dagger (1925), followed by Arabesque and Fool's Bells that same year.

During this time, she acted in plays across the U.S., including the theatre venues of downtown Los Angeles.

Living in Los Angeles, California, she devoted herself to her family and the movie career of her daughter.

Sothern died on September 11, 1994, less than a month after her 99th birthday in Palm Springs, California.