Dean Jagger in the film trailer for Dangerous Number
Until Dean Jagger starred in the 1940 film Brigham Young, Frontiersman, he was a little-known actor. However, he went on to star in White Christmas and Twelve O'Clock High, for which he won an Academy Award for Best Supporting Actor.
Jagger became very interested in Brigham Young after landing the role, and after then-prophet Heber J. Grant praised his performance in the film, he began studying the gospel. Jagger ultimately joined the Church in 1972 after marrying Etta Mae Norton, who was a Mormon.
For the making of Brigham Young, Frontiersman, Twentieth Century Fox consulted with Church historians and leaders, including President Heber J. Grant.
Dean Jagger donated his awards, personal papers, and memorabilia to the Harold B. Lee Library at Brigham Young University.