On Saturday, November 10, 2018, over 50 people gathered at the intersection of Route 52 South (Kennett Pike) and Hillendale Road in Chadds Ford, Chester County, Pennsylvania, to dedicate the newest Pennsylvania Historical and Museum Commission marker to Isaac and Dinah Mendenhall, Quaker abolitionists. Many of the attendees were Mendenhall descendants. The marker nomination was submitted by Concord Monthly Meeting member Robyn Young and Isaac Mendenhall descendant Carol Luzak.
