Conversation so far:
What kind of organization did Garrison work with?
In addition to publishing The Liberator, Garrison spearheaded the organization of a new movement to demand the total abolition of slavery in the United States.
Who did Garrison work with?
January 1832, he had attracted enough followers to organize the New-England Anti-Slavery Society which, by the following summer, had dozens of affiliates and several thousand members.
In December 1833.

Question: Was he successful in his anti slavery work?
Self-contained rewrite: Was William Lloyd Garrison successful in his anti slavery work?