Social Reformers
- Abbe Pierre
- Abigail Kelley Foster
- Alice Paul
- Amelia Jenks Bloomer
- Andrei Sakharov
- Andrew Jackson Young Jr
- Andrew Young
- Angelina Emily Grimke
- Anna Howard Shaw
- Annie Besant
- Anthony Ashley Cooper 7th earl of Shaftesbury
- Anthony Comstock
- Archibald Henry Grimke
- Bayard Rustin
- Bell Hooks
- Bella Abzug
- Benjamin Franklin Chavis Muhammad
- Benjamin Lawson Hooks
- Benjamin Lundy
- Berrigan brothers