Comment: Please find more reliable sources to establish notability, and please remove the Find a Grave source: it is highly unreliable per WP:RSPFINDAGRAVE. 🌀Hurricane Wind and Fire (talk) (contribs)🔥 01:29, 6 December 2025 (UTC)
Comment: In accordance with Wikipedia's Conflict of interest policy, I disclose that I have a conflict of interest regarding the subject of this article. Grey721 (talk) 20:12, 5 December 2025 (UTC)
Marie Rowena Mosier (1889–1948) was an American vaudeville actress and orchestra leader in the early 20th century.

Born in 1889, Mosier was the youngest of two children born to William H. Mosier and Carrie "Clara" Mosier. She was a graduate of the Wellsville Music Conservatory in New York. She was a performer on the stage with a stage name of "Miss Marianne Mozier". Mosier was the musical director for major traveling vaudeville shows and at a young age directed orchestras in cities from coast to coast including Canada.[1] Two of the shows were "The Trained Nurses" alongside Gladys Clark and Henry Bergman[2], and Jerry Lasky's "Redheads"[3]. In 1917 She developed and performed her own four-woman musical show with the Vivian Sister on the Fox Theater Circuit. It was described by Billboard as "a strictly high-class instrumental act."[4] She also played minor roles in several silent Thomas Edison films shot in Bermuda from 1911–1912[5]. In 1918 she married Henry Gottlieb. They had no children. Later in life, she primarily played organ and played in Radio City Music Hall for the Radio City Music Hall Rockettes. She died on the Fourth of July 1948 at age 59 in Manhattan New York.
Gallery
- "Shea's Theater: Vaudeville". The Buffalo Enquirer. January 6, 1914. p. 3. Retrieved December 6, 2025 – via Newspapers.com.
- Trav S. D. (September 27, 2025). "Clark and Bergman". Travelanche.
- "Temple Theater: Headline of Bill is Small Musical Comedy, 'Trained Nurses'". Democrat and Chronicle. January 5, 1913. p. 19. Retrieved December 6, 2025.
- "Marie Mosier's New Act". The Billboard. June 9, 1917. p. 8 – via Google Books.
- "Is a Regular Musician". The Republican. April 10, 1914. p. 15. Retrieved December 6, 2025.