In 2004 San Francisco Mayor Gavin Newsom announced that the the City of San Francisco would grant marriage licenses to same-sex couples. The first same-sex wedding to take place at City Hall was between Del Martin and Phyllis Lyon. The couple, who had lived together more than 50 years, were longtime activists in the San Francisco lesbian and gay community having formed the Daughters of Bilitis, one of the first national lesbian organizations in the US in 1955.