A memorial stone and plaque by the side of the road marks the spot in Hare Lane where the crash took place (grid reference ST 277 155). The memorial stone is on the south side of the road under an ash tree, about 400 metres down the hill from Old Castle Farm.
The memorial plaque reads:
Air Crash
22.11.1945 Liberator KH126
In Memory of the 27 men who perished at this site
Four of the crew, including the pilot, were Polish and on top of the memorial stone, which according to the Somerset Historic Environment Register is a recycled old boundary stone, is a faint carving of what appears to be an eagle. I could make out what look to be wings but not much else.
Further Reading:
Wings over Somerset: Air Crashes since the end of World War II: Peter Forrester. The History Press, 2012 (The entry for the Hare Lane crash in this book includes the names of all those who died)
Memorial plaque
Memorial plaque and stone
Eagle carving on the top of the memorial stone
Ash tree behind the memorial