Other names: Mary Lou Treen · Mary Louise Summers
1983 · Mrs. Olsen
1978 · Teacher
1966 · Mrs. Belden
1963 · Mattress Customer
1963 · Mrs. Stevers (uncredited)
1962 · Mrs. Figgot
1961 · Miss Schuster
1959 · Marie, Secretary to Shirley Drake
1958 · Mother Bradley (uncredited)
1958 · Nurse
1957 · Sgt. Hansen
1957 · Miss Henderson
1956 · Matron
1956 · Flo Burton - Script Girl (uncredited)
1956 · Mrs. Burnside
1956 · Emily Parsons
1953 · Mildred
1953 · Nelly
1952 · Wife in Hotel Bar (uncredited)
1952 · Ginger
1952 · Grace Roberts (as Mary Lou Treen)
1950 · Helen Bryan
1949 · Pregnant woman
1948 · Miss Adams
1948 · Wife (uncredited)
1948 · Hilda (Uncredited)
1946 · Cousin Tilly
1946 · Mabel Taylor
1946 · Marie Finch
1946 · Talkative nurse
1946 · Alice Beesley
1946 · Grace Conley
1945 · Train Passenger at Bar
1945 · Diane Peabody
1945 · Lucy Blake
1945 · Cassie McQuade
1944 · Mata
1944 · Monica Case, the Maid
1944 · Addie LaTour
1944 · Cecilia 'Cissy' Grant
1944 · Agnes
1944 · Sophie Lawrence
1943 · Smitty
1943 · Lt. Sadie Schwartz
1943 · Newspaper Woman (uncredited)
1943 · Janie
1943 · Helen
1943 · Nancy
1943 · Miss Tracy
1942 · Dawn
1942 · Nora Cassidy
1942 · Mary Belle
1942 · Susie Johnson
1942 · Autograph Seeker
1942 · Olga
1941 · Irene
1941 · Persis
1941 · Doris
1941 · Secretary
1941 · Martha
1940 · Pat
1940 · Mary
1940 · Nina Norton
1940 · Herself
1940 · Billy's Nurse
1940 · Jenny, Hotel Maid
1940 · Hospital Switchboard Operator
1940 · Esme
1939 · Agnes, Barbara's Maid
1939 · Employment Agency Receptionist
1939 · Mary
1939 · Patsy
1939 · Waitress
1939 · Undetermined Role (uncredited)
1938 · Nanette
1938 · Kathy
1938 · Al's Bride-to-Be (uncredited)
1938 · Sugar Hatfield
1938 · Waiting Room Patient
1938 · Miss Barkow
