The concert, organized as a benefit for the Civil Rights Congress, was scheduled to take place on August 27 in Lakeland Acres, just north of Peekskill. Before Robeson arrived, a mob of locals attacked concert-goers with baseball bats and rocks. The local police arrived hours later and did little to intervene. Thirteen people were seriously injured, Robeson was lynched in effigy and a cross seen burning on an adjacent hillside. The concert was then postponed until September 4. Following the concert, request for Klan memberships from the Peekskill area numbered 748 persons.