On the 19th October 1944 a USAF B-24 Liberator was flying over the Wirral, west of Liverpool, when it inexplicably blew up killing all 24 on board. There is a plaque situated near Durley Industrial Estate, by Brook Road on the river Fender, which reads:
IN MEMORY OF THE 24 U.S. ARMY AIR FORCE WHO DIED WHEN THEIR AIRCRAFT EXPLODED IN MID AIR
There is one name on the memorial that should not be there that of J F Simpson who died when his P47 Thunderbolt crashed by the Arrowbrook, at Saughall Massie where there is a separate memorial on the new bridge.