He died aged "about 57 years" [May 20. Vital Records]. (sources: gravestone inscription & Vital Records of Gloucester, MA to the end of the year 1849, deaths)

.....

The following interesting Bio provided courtesy of an individual outside of FindAGrave:


HISTORY OF THE TOWN OF ROCKPORT,
as Comprised in the Centennial Address of
LEMUEL GOTT, M. D.,
Extracts from the Memoranda of EBENEZER POOL, ESQ.,
and interesting item.s from other sources.
Compiled by
JOHN W. MARSHALL, NEWELL BURNHAM,
HENRY DENNIS, LEVI CLEAVES,
Committee
ROCKPORT, MASS.:
1888.

Pg. 262 HISTORY OF ROCKPORT.

Exhumation and Re-Interment of the Remains of John Pool
and his Wives.

A small congregation of men assembled near the residence
of Mr. Ephraim Nickerson, corner of Railroad avenue and
King street, on the 22d day of October, 1878; their object
was to witness the exhumation and re-interment of the remains
of John Pool, the second permanent settler of Sandy Bay, and
those of three of his wives, which had been buried more than
one hundred and fifty years on what was then his own land;
but long- since this estate had passed out of the possession of
his descendants, therefore the call for and the necessity of their
removal. It was a matter of special interest to the small
number there assembled to know how little there remains of
a fellow mortal after so long a burial. The .coffins had
crumbled so that only a few small fragments remained, a few
bits of rusty iron, remains of nails and metallic trimmings,
some bones, soft and crumbly, with fine fibres of roots and
vegetable growth twined closely about, beneath and around
every part, winding even into the minutest crevices and
embracing every part with their delicate tracery. Even as
Bryant says :

" Earth that nourished thee shall claim,
Thy growth to be resolved to earth again."
The inscription upon the headstone is this :

Here Lyes ye Body of

Mr. John Pool,

Aged about 57 years,

DeiD May ye 19th, 1727.

All of the remains were placed in a neat box and were
re-interred in the old cemetery, and the ancient headstone was
placed to mark this last resting-place.