Civil War Roundtable of Eastern PA will present “A Blackberry Raid: Gen. Erasmus Darwin Keyes at Crump’s Crossroads,” 7:15 p.m. June 7 at Delta Hotels by Marriot (former Holiday Inn), 7736 Adrienne Drive, Breinigsville.

On the same day the Union left held against the attack by Gen. Longstreet at Gettysburg, Union Gen. Erasmus Darwin Keyes advanced from White House Landing, Va. in an unsuccessful diversionary tactic to cover a move against Richmond and a lost opportunity to capture a key line of Confederate communication.

For more information, call 610-391-1000.