Lesbian rights pioneer and feminist activist Del Martin passed away yesterday. She was 87.

Martin wed her partner of over 50 years, Phyllis Lyon, last month after same-sex marriages were legalized in California. They were the first same-sex couple married in San Francisco.

Martin and Lyon founded the Daughters of Bilitis, an early lesbian activist group, and Martin was the first out lesbian to serve on the board of the National Organization for Women.

Our condolences go out to her widow, Phyllis Lyon, and her daughter.

You can read more here, here and here.