Research, they say, never ends.
The reason for my question about Nachtjagd Grid References was to try to resolve the original mystery of -
Who Shot J-Johnnie Down ? 
Chorley lists JB-659 as being lost at around 22:10 on 30/1/44. Hinchliffe's biography of Schnaufer lists his only victory that night as being an 'unidentified Lancaster' at 22:15 in Grid GK5, the aircraft 'crashing into the sea'.
The wreckage of JB-659 fell to earth at Haarlemerleide, exactly halfway between Heemskerk and Heemstede, Casticum and Lisse, which thanks to Erich and Stevin Oudshoorn we know to be the upper and lower limits of GK. GK did not extend to to the North Sea coast. JB-659 broke in two just below the cockpit, and so came straight down.
It seems unlikely that Heinz Vinke and Schnaufer would have been active in the same Grid Square at the same time. This being so, it really does begin to look as though this inexperienced Pathfinder crew were indeed the 44th victim of the most successful nightfighter ace ever, Heinz Wolfgang Schnaufer.Also, at this time,he was based at Leeuwarden, Holland before transferring to St Trond, Belgium in March 1944.
( Unless anyone else has other theories.....?
)
[ 08. March 2004, 12:30 PM: Message edited by: Martin Bull ]