The New York Public Library has, in its Billy Rose Theatre Collection photograph file, a series (from around the 50's by the looks of it) of actors and other personalities with their pets. (Read about the Collection here.)
Copyright issues keep me from posting the images, but you might want to have a look. After all, there's Clark Gable and his Siamese. Errol Flynn and his Siamese. Greer Garson and Margaret Lockwod and their -- wait for it -- Siameses. Huh. Seems to be a theme there.
The images are a neat blast from the past. I think you'll like them.