David Walker (September 28, 1796August 6, 1830) was an American abolitionist, writer, and anti-slavery activist.

Dred Scott was an enslaved African American man whose unsuccessful lawsuit for his freedom led to a controversial decision by the US Supreme Court.

Frederick Douglass was an African-American social reformer, abolitionist, orator, writer, and statesman.

Harriet Forten Purvis (c.

Harriet Tubman (c.

Sojourner Truth was an African-American abolitionist and women's rights activist who lived during the 19th century.

The Underground Railroad is a historical network of secret routes and safe houses used by enslaved African-Americans to escape to free states and Canada during the early to mid-19th century.