According to "History of the Town of Shrewsbury, 1717 to 1829", by Ward, (pg. 465), Ephraim died in Shutesbury at the age of 116 years.
A short history of Shutesbury, MA, posted at the RootsWeb Genealogy WWW Site, has this to say about Ephraim:
"Ephraim Pratt, a resident of this place, was born in Sudbury Nov. 1, 1687; and died here in May, 1804, at the remarkable age of 116 years. He married Martha Wheelock at the age of 21; and lived to see, it is said, 1,500 descendants. He was temperate and cheerful."
_Addison Patridge WHEELOCK _+
| (1833 - ....) m 1855
_Ebenezer Thomas WHEELOCK _|
| (1856 - 1891) |
| |_Ann MCBRIDE _______________+
| (1833 - 1885) m 1855
|
|--_____ WHEELOCK
| (1884 - 1884)
| _Peter A. DURYEA ___________
| |
|_Matilda Marie DURYEA _____|
(1854 - 1939) |
|_Eliza VANBLARCUM __________
_Paul WHEELOCK ______+
| (1750 - ....) m 1781
_Jefferson WHEELOCK __|
| (1802 - 1854) m 1833 |
| |_Martha SIBLEY ______
| (1763 - ....) m 1781
|
|--Elbridge G. WHEELOCK
| (1846 - ....)
| _____________________
| |
|_Louisa Abigail RICE _|
(1815 - 1899) m 1833 |
|_____________________
According to "Wheelock Genealogy" by Carlyle Capron Wheelock and Winifred (Thomson) Gonseth, Elbridge "d. in the Civil War in Battle of the Forrest, a shot hit a tree and the tree fell on him."
_Joseph Brayton WHEELOCK _+
| (1844 - 1909)
_Joseph Brayton WHEELOCK _|
| (1879 - 1918) m 1899 |
| |_Jane Ann CLARK __________
| (1847 - 1890)
|
|--Lucy Jeanette WHEELOCK
| (1919 - ....)
| __________________________
| |
|_Lucy BARROWS ____________|
m 1899 |
|__________________________
_Peter WHEELOCK _____+
| (1749 - 1820) m 1784
_Eli WHEELOCK _______|
| (1798 - 1856) m 1820|
| |_Lydia GREEN ________
| (1760 - 1812) m 1784
|
|--Merrill G. WHEELOCK
| (1822 - 1866)
| _____________________
| |
|_Hepsibah OSGOOD ____|
(1799 - 1865) m 1820|
|_____________________
Merrill was an architect. According to Marcus Warren Waite in "The Wheelock Family of Calais, VT", he "is said to have designed the old Masonic Temple in Boston." His biography is written in the following books (per "Biography and Genealogy Master Index", compiled by Mirana C. Herbert and Barbara McNeil, Detroit, Gale Research Company, 2000, as given by Ancestry.Com electronic search, Jun 2000):
"Early American Book Illustrators and Wood Engravers, 1670-1870." A catalogue of a collection of American books illustrated for the most part with woodcuts and wood engravings in the Princeton University Library. Volume I: Main Catalogue. By Sinclair Hamilton. Princeton, NJ: Princeton University Press, 1958.
"Early American Book Illustrators and Wood Engravers, 1670-1870." A catalogue of a collection of American books illustrated for the most part with woodcuts and wood engravings in the Princeton University Library. Volume II: Supplement. By Sinclair Hamilton. Princeton, NJ: Princeton University Press, 1968.
"The New-York Historical Society's Dictionary of Artists in America, 1564-1860." By George C. Groce and David H. Wallace. New Haven, CT: Yale University Press, 1957.
There are two records of death for Mrs. Martha Wheelock in the Lancaster Vital Records: Martha Wheelock, 12 May 1802, age 94; and Mrs. Martha Wheelock, 94, of old age, 5 May 1802.
Martha Wood was the daughter of Samuel Woods. (Source: "The Wheelock Family in America, 1637-1969", by Walter T. Wheelock, 1969).