Person injured at Oak Knoll Drive in Jefferson Township Heard on: Chester County Fire/EMS - Digital 00:08 Two three, I will say the (number withheld) Oak Knoll Drive, Jefferson Township, an injured person . Transcript This transcript is auto-generated from live dispatch audio and may be incomplete or inaccurate. It is not an official report and may change. Two three, I will say the (number withheld) Oak Knoll Drive, Jefferson Township, an injured person . 2026-11-08 17:11 UTC Medical Emergency Oak Knoll Dr, Berwyn, PA 19312 View on map