Trained and worked as a kindergarten teacher before becoming an actress; continued to serve on the Beverly Hills Board of Education after her acting career took off.
Made her Broadway debut playing Helen Hallam in the original 1932 production of the comedy Another Language; her on-screen debut came when she reprised the role in the 1933 film version.
Was injured while filming The Wizard of Oz (1939), when a delayed trap-door opening during a fiery exit resulted in second-degree burns on her face and a third-degree burn on her hand. Hamilton spent six weeks recovering from the incident and refused to do any more fire-related stunts on the film set.
Played Aunt Eva on the radio series Ethel and Albert in the 1940s and 1950s.
Remained active on stage throughout her career, notably playing Aunt Eller in a production of Oklahoma! at the New York State Theater in 1969.
Paul Boynton Meserve — Ex-husband
Jennie Hamilton — Mother
Hamilton Meserve — Son
Walter J. Hamilton — Father
Miss Wheelock's Kindergarten Training School, Boston, Massachusetts, United States (1923)