I was in the RIVERVIEW CEMETERY yesterday
which is in Fort Pierce, FLORIDA, Saint Lucie County,
and I wrote down this information.
They are buried there, and have seperate headstones.
His is gray and tall and on a stand, her's is very tall
and white but has a unique shape.
This is what they read;

1.
JOHN G. MAY
APR. 30, 1847
SEPT. 3, 1923

2.
ELLA S.
WIFE OF
JOHN G. MAY
OCT. 28, 1890
OCT. 17, 1916
(there is a verse here)

MAY

(I hope this information helps someone.)