Sgt J. Davis joined No 54 Squadron on the 9th of August.1940.

On the 31st of August 1940, was one of three pilots attempting to take off during a bombing raid. His Spitfire (possibly No N3110) was thrown over the boundary fence by a bomb blast just as it took off, and it crashed into the River Ingrebourne. The other two pilots were E.F.Edsall and A.C.Deere.
Of Davis there was no sign. Two hours later he turned up at the main gate, unhurt and carrying his parachute. He had been thrown clear but, being unable to find a gap in the boundary fence, Davis had walked halfway around the aerodrome to get back in.