Same-Sex Marriage A lesbian couple from St. Louis, Missouri, gets married on May 1, 2009, in Iowa City, Iowa. Joining them on what they called the “Show Me Marriage Equality Bus,” another sixteen same-sex couples from Missouri also rode to Iowa City to get married. By June 2012, Connecticut, Iowa, Massachusetts, New Hampshire, New York, Vermont, Washington, and Washington, D.C., had authorized same-sex marriage. Photo copyright The Cedar Rapids, Iowa, Gazette