The posted coordinates take you to the War Memorial. You need to look at the right hand panel of names not shown on the photo above.
The first name on the panel you need is T. Parnell O. B . L. I RIP
A = How many "e" 's are there in the third row of names ?
B = How many Turners are mentioned ?
C = Number of all letters in third name on list
D = Number of all letters of the 8 th name on list
E = Number of letters of 2 nd person 's unit
F = Number of letters of 5th surname and unit
CHECKSUM : ABCDEF = 30
The cache can be found at N 50° 41. A B C
W 004° 32. D E F
***** PLEASE NOTE IMPORTANT *****
CACHES ARE NOT ALLOWED TO BE PLACED ON ACTUAL MEMORIALS OR WITHIN THE BOUNDARY OF SUCH
AT ALL TIMES PLEASE TREAT LOCATIONS OF MEMORIALS WITH RESPECT