This was really hard to uncover information about Jacob C. White himself, but I did manage to find some information about the organizations he was most closely associated with. The Institute of Colored Learning. This famous institute of learning was founded in Philadelphia by a Quaker philanthropist to provide African-American men with a classical education. It was first opened in 1837.
Jacob C. White Jr. Was one of the first students at this school, and he was an early leader in the student body. He led a “young men’s instruction society” at ICY where students could gather for weekly discussions, debates or readings.
He was also a member of the Pythians Baseball Club, an all-black baseball team from Philadelphia. White believed that baseball could be a vehicle for African-American improvements, but his petition to join the National Association of Baseball Players was rejected due to race. This set into motion events that would one day create the Negro leagues.