Joan Crawford initially fought for Trevor to star alongside her in Johnny Guitar (1954), jealous of the much younger Mercedes McCambridge, who was eventually cast.
Donated her Oscar and her Emmy to the University of California, Irvine. Both are on display in the arts plaza at the Theatre that bears her name.
During the telecast of The 73rd Annual Academy Awards (2001) (TV) on 3/25/01, she was honored by being included in the always touching and memorable segment that pays tribute to those in the industry who have passed away over the course of the previous year.
In Italy, unlike other major Hollywood actresses, she didn't have an official voice. She was in turn dubbed by Tina Lattanzi (most notably in Stagecoach (1939)), Lidia Simoneschi, Giovanna Scotto, Dhia Cristiani, Rosetta Calavetta, Rina Morelli, Wanda Tettoni and Marcella Rovena.
Made a special guest appearance at The 70th Annual Academy Awards (1998) (TV) and appeared as part of a tribute sequence called "Oscar's Family Album". Miss Trevor appeared in a black gown and jewels seated between Marisa Tomei and Jon Voight. Fellow honouree Michael Caine paid tribute to her calling her a 'living legend.'
Profiled in "Femme Noir: Bad Girls of Film" by Karen Burroughs Hannsberry (McFarland, 1998).
Profiled in "Killer Tomatoes: Fifteen Tough Film Dames" bu Ray Hagen and Laura Wagner (McFarland, 2004).
Son (with Dunsmoore) Charles Cyclos (d. 1978 in plane crash).
Stepsons (with Milton H. Bren) Donald and Peter.
The School of the Arts at the University of California-Irvine is named for her.