[6][7] She was described in a 1939 newspaper article as "an accomplished athlete ... expert as a dancer, swimmer, horsewoman, and plays golf, tennis and skis.

"[8] In 1939, Windsor was chosen from a group of 81 contestants[9] to be queen of Covered Wagon Days in Salt Lake City, Utah.

[8] She was unofficially appointed "Miss Utah of 1939" by her hometown’s Chamber of Commerce,[10] and trained for the stage under Hollywood actress and coach Maria Ouspenskaya.

[11] Voluptuous and leggy, but unusually tall (5'9") for a starlet of her generation, Windsor felt that she was handicapped when playing opposite actors of average stature (claiming she had to progressively bend at the knees walking across the room in scene with John Garfield).

[12] In later years, thanks to her early screen success, Windsor was able to pursue her studies more extensively, primarily with Stella Adler[10] and also at the Lee Strasberg Theatre Institute.

[15] In 1940, after her move to Hollywood and entering Ouspenskaya's drama school, she appeared in the play Forty Thousand Smiths, her first use of the stage name "Marie Windsor".

She appeared on programs such as Cheyenne, Bat Masterson, Bonanza,Tales of Wells Fargo, Yancy Derringer, 77 Sunset Strip, Maverick (in the 1957 episode titled "The Quick and the Dead" with James Garner and Gerald Mohr as Doc Holliday) and (in the 1962 episode "Epitaph for a Gambler" with Jack Kelly), The Red Skelton Hour, Hawaiian Eye, Perry Mason, Bourbon Street Beat, The F.B.I., The Incredible Hulk, Rawhide, Adam-12, Mannix, Charlie's Angels, General Hospital, Salem's Lot, and Murder, She Wrote.

[20] In 1987, Windsor received the Los Angeles Drama Critics Circle Award for best actress for her work in The Bar Off Melrose.

[22] In July 1950, newspaper columnist Louella Parsons reported, "Marie Windsor has set her marriage to Alex Lunciman, a Beverly Hills stock broker, for October".

[3] Hupp, with whom Windsor had a son, Richard Rodney, was inducted posthumously into the University of Southern California (USC) Athletic Hall of Fame in 2007.

[1][24] Windsor was politically conservative, a member of the Screen Actors Guild, and supportive of the Motion Picture and Television Fund.