Civil rights activist Dorie Ann Ladner has died at age 81. Joyce Ladner confirms her sister died peacefully Monday after battling several health issues.

Dorie Ann Ladner, a longtime fighter for freedom and equality in her home state of Mississippi with contributions to the NAACP, the Student Nonviolent Coordinating Committee and voter registration drives, has died, her family confirmed.

“My beloved sister, Dorie Ladner, died peacefully on Monday, March 11, 2024,” her younger sister, Joyce Ladner, wrote on Facebook. “She will always be my big sister who fought tenaciously for the underdog and the dispossessed. She left a profound legacy of service.”

Dorie Ladner was 81.