MacGibbon joined the stock company of Edward Clarke Lilley at Akron, Ohio. She then went to San Francisco and played leading roles for Henry Duffy. In Louisville, Kentucky, she acted with
Wilton Lackaye,
Edmund Breese,
William Faversham, Tom Wise and
Nance O'Neil. Credits included ''Ned McCobb's Daughter
, The Front Page'', and a "transcontinental tour" of
Max Marcin's
The Big Fight (in which she starred opposite former world
heavyweight champion
Jack Dempsey), beginning in Boston, taking in New Haven and Hartford, Connecticut, and ending at Caine's storehouse in Los Angeles. She had a long and distinguished career on the Broadway stage, beginning in 1925 at the age of 19 when she acted in the play
Beggar on Horseback at the
Shubert Theatre. In the late 1930s, she did ''
You Can't Take It With You, the Pulitzer Prize-winning comedy, at the Biltmore Theatre in Los Angeles. From 1934 to 1937, MacGibbon portrayed Lucy Kent on the NBC radio soap opera Home Sweet Home''. '' (1930) Her film debut was a non-speaking bit as a snooty woman walking a dog across a golf course in
W.C. Fields'
The Golf Specialist (1930), shot in Fort Lee, New Jersey. She made numerous guest appearances on television starting in 1950, including
Bewitched,
Ray Milland's sitcom
Meet Mr. McNutley. Another sitcom in which MacGibbon appeared was
My Three Sons, performing as Margaret Cunningham in the 1961 episode "Bub Goes to School". She was cast in five theatrical movies, including
Four Horsemen of the Apocalypse (1962), which was directed by
Vincente Minnelli and starred
Glenn Ford,
Ingrid Thulin,
Charles Boyer, and
Lee J. Cobb. ==Personal life and death==