Have you ever wished that people would tell you what they really mean or want, rather than saying something and expecting you to know that they actually want you to do the opposite? Yeah, me too.
This cache cannot be found here: N43 28.ABC W 80 9.DEF
Don't use the battalion numbers of the soldiers written on the stone monument found at the posted coordinates, and make sure you do the math in the following order to get the final cache location:
A = PTE W. Ames: first digit + 1
B = Sergt. J.T. Herbert: second digit + 1
C = Lance-Corp Septimus Harrison: first digit + 3
D = GR Orman T Gibbs: second digit + 2
E = PTE Albert H Calvert: second digit + 2
F = PTE Fred Foley: first digit - 1
You can check your answers for this puzzle on GeoChecker.com.