GNAPP,
Could be -
E, Gnapp, 117795.
Eric Gnapp, 217148.
D G,
G'Napp, 751043
At first search in the NA file it looked like a "1" but on second look following Paul's post below I see a definite difference between the 7 and the 1 of G'Napp's service number.
https://discovery.nationalarchives.g...ls/r/C15624135
Page 308
All must have survived WW2 as only one is listed in CWGC, and that was a WW1 man from Bedford.
G'Napp, recorded in the ORB as a Sgt in October 1940