The Potomac Street Irregulars (PSI) will meet on Tuesday, June 14, in the Parlor House, 724 S. Potomac St., Waynesboro. The dinner meeting starts at 5:30 p.m., followed by the feature presentation. The event is open to the public, but reservations are required.

Crystal Claggett will lead the discussion about the Cross-Scadden Shooting of 1911. In that case, William Cross was tried for murder in the death of John Elmer Scadden. The shooting occurred at Scadden’s home near Bagtown, Washington Co., Md. The particulars of the case and the outcome of the trial will be disclosed during the meeting.

To make reservations, email or call 717.762.2006 no later than Sunday, June 12.

PSI is a study group of Antietam Historical Association. Since 2013 its monthly meetings have focused on crime in local history. One member presents the facts of a particular case and then urges the group to analyze the case. PSI’s findings are published in the series “The Proceedings of the Potomac Street Irregulars.” Antietam Historical Association was founded in 2006 to interpret the history of the region in Maryland and Pennsylvania drained by Antietam Creek.