To find the cache, you'll need to learn a bit about the late Sam Walton.
The cache is at:
N 33 56.ABC W 078 01.DEF
A = Sam Walton graduated high school in 193A.
B = Sam and Helen were married in 194B.
C = Sam passed away in 199C.
D = Sam’s birthday is March 2D.
E = Sam joined the army in 19XY. X + Y = E
F = How many letters are in Sam’s first name?
*Log Only - BYOP
Beware of muggles!