The published co-ordinates take you to the War Memorial. There you will see 9 names of fallen from World War II. Reading from left to right and downwards as you would when reading a book, label these A, B, C, D, E, F, G, H and I. Then carry out the following calculations to determine the final coordinates, these are based on the number of letters in the names.
N52 B-E, F-H.E/2, C's Surname, H's Christian name
E000 G/4, H's Surname.D/F, B-D, F's Christian Name