I don't know... I wasn't around in the 1940s, so I can't be sure, but Laraine Day doesn't seem like she was a "major star". She certainly wasn't nearly at the level of Ingrid Bergman, Barbara Stanwyck, Lana Turner, Lauren Bacall, Rita Hayworth, Bette Davis, Joan Crawford, etc. She married Leo in 1948, when he was the manager of the Brooklyn Dodgers and had received a year-long suspension. Laraine may have been more famous than Leo in 1940, but by 1948 I would guess that more people knew Leo. But like I said, I wasn't around then, so this is just conjecture.