"You see, gentlemen, behind every great man there is a woman urging him on. And so it was with my Stella. She urged me on into outer space. Not that she meant to, but with her continual, eternal, confounded nagging. Well, I think of her constantly, and every time I do, I go further out into space. "
Sometime before 2268, Stella became separated from her husband when the latter began his career as a con artist. Mudd later created an android replica of Stella that was programmed to shut down on command so that he could always get in the last word. (TOS: "I, Mudd")