I just want to thank Matt Seybold for his essay /EVEN IF HE WEREN’T MY FRIEND: FREDERICK DOUGLASS & MARK TWAIN, <https://marktwainstudies.com/freddouglassmarktwain/>/ He offers an excellent summary of the history of the Douglas-Langdon relationship and for my purpose, a strong argument for Twain's presence at the Douglas speech on that date. -- /Unaffiliated Geographer and Twain aficionado/