Phyllis Lyon (1924–2020) and Del Martin (1921–2008) were pioneering lesbian-rights and feminist activists whose political efforts influenced many organizations and social movements. From creating the first national lesbian-rights organization in the United States to being the first same-sex couple to marry in San Francisco (twice), they challenged the notion that lesbians were “illegal, immoral, and sick.” For over five decades of leadership in the LGBT movement, they worked to change cultural attitudes about lesbians and gay men and the laws that oppressed them. They were leaders in the feminist movement, advocating for the inclusion of lesbians within the women's movement of the 1960s and 1970s and bringing visibility to issues such as family violence.