According to Greg Mank in his in-depth article on Marjorie for Films of the Golden Age movie magazine (Fall 2011, No. 66), she and actor
Brian Donlevy eloped to Ensenada, Mexico on December 22, 1936 and rewed on New Year's Eve, 1936 at the Wilshire Episcopal Church in Los Angeles. Marjorie's maid of honor was dancer
Eleanor Powell.