In Dixon, Illinois, four thousand Union supporters dedicate a new Unionist meeting hall
The Illinois town of Dixon hosted a large gathering of Unionists from Lee County and the nearby counties of Ogle and Whitesides to dedicate a new purpose-built Union Hall. Meetings with loyal speeches were held in the afternoon and evening with around four thousand people estimated to be in attendance. Dixon was the place where Abraham Lincoln enlisted in the Illinois militia during the Black Hawk War in 1832. (By John Osborne)
"The fire on the Prairies: Dedication of the Great Union Hall at Dixon," Chicago Tribune, May 20, 1863, p. 1.