Yes
An abolitionist in the colonies
No
I'm not really sure, but isn't it Harriet Tubman? Harriet Tubman was one of many. There were others such as Martin Luther King Jr. Sojourner Truth, Fredrick Douglas, John Brown, Harriet Tubman, William Still Angelina, Grimke Sister, Sarah William, and Lloyd Garrison. There is no single most famous abolitionist because every famous abolitionist did something monumental.
Abolition of slavery
Abolitionist Fredrick Douglas
Fredrick Douglass
Fredrick Douglass, Harriet Tubman
Frederick Douglass
Fredrick Douglas was an African-American writer, orator and statesman. He escaped from slavery in 1838 at the age of 20 years and subsequently became a leader of abolitionist movement.
Frederick Douglass (1817–1895) was an American abolitionist, writer, orator, and former enslaved person who became one of the most influential voices against slavery. He wrote several autobiographies, including Narrative of the Life of Frederick Douglass, and advocated for equal rights and education.
Fredrick Douglass
Fredrick Douglass i think