Come visit the historical cemetery and see the namesake. There is a historical marker here as well. A few resting here died during the yellow fever epidemic.
Cache is not at the listed coords, find the name sake at the coordinates. His name can be found at the historical sign at the entrance of the graveyard.
To find the cache answer the math problems.
ABC= birth year - 989
DEF= Death year - 1741
cache location
N 31 05.ABC
W 087 05.DEF