Morne began her career as a professional model. Her first known screen role was as Ann Montgomery in
The Boomerang (1919), directed by
Bertram Bracken. The next year, she was cast by
Allan Dwan in his now-
lost movie,
In the Heart of a Fool. In 1921, Morne appeared as
Ariel in a stage production of
The Tempest at the
Hollywood Bowl, having studied under
Gwendolyn Logan. Her casting as Jane McKaye in
Kindred of the Dust the next year, playing the sister of
Ralph Graves, marked her third appearance on screen. The film's production, which also starred Walsh's wife
Miriam Cooper, was complicated for its cast and crew by the clear breakdown of Walsh and Cooper's relationship during filming. Later that year, she played at the
Ritz Theatre alongside
Robert Strange in a production of
In Love With Love. The production, which also featured
Lynn Fontanne,
Henry Hull, and
Berton Churchill, was deemed one of the best plays of the 1923–24 season by
Burns Mantle. In 1930, Morne was cast in the mystery film
The Last of the Lone Wolf, starring
Bert Lytell and
Patsy Ruth Miller.''
She played the Queen of Saxonia opposite on-screen partner Alfred Hickman. The winner,
Anthony de Francisci, submitted a design featuring the
Goddess of Liberty in profile. leading to speculation that another influence for the coin had been Maryland Morne. The media referred to Morne by variations of the moniker "peace dollar girl," such as "million dollar girl."
Other creative endeavours Morne enjoyed writing. Over the course of filming
In the Heart of a Fool, she met
William Allen White, the writer whose novel formed the basis of director Dwan's screenplay. He shared an idea for a novel with Morne, and gave her his blessing to write the work on his behalf. Morne also wrote poetry in her spare time. == Personal life ==