Patrick Holden
Hayes Cheatham
Abolitionist, tried for particpation in Oberlin-Wellington Rescue of an escaped slave in 1858 (see speech: http://www.oberlin.edu/external/EOG/Oberlin-Wellington_Rescue/c._langston_speech.htm )
http://www.blackpast.org/aah/langston-charles-henry-1817-1892
https://en.wikipedia.org/wiki/Oberlin%E2%80%93Wellington_Rescue
http://www.oberlin.edu/external/EOG/Oberlin-Wellington_Rescue/trial_account.htm
Berwanger, Eugene H. “Hardin and Langston: Western Black Spokesmen of The Reconstruction Era.” The Journal of Negro History 64, no. 2 (1979): 101–15. doi:10.2307/2717202.