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 "Edward G. Walker"): Edward Garrison Walker, also known as Edwin Garrison Walker (1830–1901), was an American artisan in Boston who became an attorney in 1861; he was one of the first black men to pass the Massachusetts bar.
Relevant evidence: Yes