In the early 1930s, Winslowe acted with the Marta Oatman Players and McFadden Productions. In 1937, after the death of
Jean Harlow near the end of the filming of
Saratoga, Winslow had the job to dub the Harlow's stand-in
Mary Dees in the remaining scenes of
Saratoga. Winslowe played the role of Mrs. Martha Conklin in
Our Miss Brooks on both radio and television. On radio, she played Peg Riley in
The Life of Riley, She was also heard in
Silver Theater,
Big Town and Elliott Lewis' shows
Broadway Is My Beat and
On Stage. She briefly portrayed Mrs. Foster on
Big Town, which starred
Edward G. Robinson. She starred in several episodes of
Suspense, including June 14, 1955 ("The Whole Town's Sleeping") written by
Ray Bradbury; July 11, 1956 ("Want Ad"); January 24, 1956 ("The Cellar Door"); and June 5, 1956 ("The Twelfth Rose"). Winslowe was cast in numerous TV shows, including
I Love Lucy and two episodes of the courtroom drama series
Perry Mason : in season 1, 1957 episode entitled "The Case of the Drowning Duck" and in season 6, 1962 episode entitled "The Case of the Unsuitable Uncle", in which she played a night court judge. She played multiple characters on
The Adventures of Ozzie and Harriet. She also voiced Greta Gravel on
The Flintstones (ep.
The Entertainer). In animated films, she did two voices in Disney's
Bambi: Bambi's mother and the pheasant who panics when the hunters come leading to her demise. ==Personal life and death==