Question: What outspoken abolitionist and author of "An Appeal to the Coloured Citizens of the World" was also the father of one of the first black men to pass the Massachusetts bar?
Sentence (from "David Walker (abolitionist)"): David Walker (September 28, 1796August 6, 1830) was an outspoken African-American abolitionist, writer and anti-slavery activist.
Relevant evidence: Yes