Gary Merrill on July 28, 1950. That same day, he married Bette Davis, his co-star from "All About Eve", and adopted her daughter Barbara from a previous marriage. He and Davis adopted two more children, Margo and Michael, but they had a bitter divorce in 1960. Often politically active, he campaigned in 1958 to elect the Democrat, Edmund Sixtus Muskie, as governor of Maine. Merrill also took part in the Selma to Montgomery marches in 1965 to promote Black voter registration. In response to U.S. President Lyndon B. Johnson's Vietnam War policy, he unsuccessfully sought nomination to the Maine legislature as an
Bette Davis City, in a stage presentation, "Great Ladies of the American Cinema". Over five successive nights, a different female star discussed her career, and answered questions from the audience; Myrna Loy, Rosalind Russell, Lana Turner, Sylvia Sidney, and Joan Crawford were the other participants. Davis was well received, and was invited to tour Australia with the similarly themed "Bette Davis in Person and on Film"; its success allowed her to take the production to the United Kingdom. In 1972, Davis played the lead role in two television films that were each intended as pilots for upcoming series for ABC and NBC,