During 1966, while son Mitt was away in France on missionary work, George Romney guided Mitt's fiancée Ann Davies in her conversion to Mormonism. Governor Romney continued his support of civil rights; after violence broke out during the Selma to Montgomery marches in 1965, he marched at the front of a Detroit parade in solidarity with the marchers. In 1966, Romney had his biggest electoral success, winning re-election again by some 527,000 votes over Democratic lawyer Zolton Ferency (this time to a four-year term, after a change in Michigan law). His share of the black vote rose to over 30 percent, a virtually unprecedented accomplishment for a Republican.