Individual Details

Probably married Free [Green] Butterfield of Sharon Twp on 19 Sep 1826 in Franklin Co, Ohio.. Marriage performed by Amaziah Hutchinson, J.P.

1830 Census. Sharon Twp, Franklin Co, Ohio.
Green Butterfield. 1m under 5, 1m 20-30. 1f age 20-30.

1840 Census. Schuyler Co IL
Green Butterfield, 1m -5, 1m 10-15, 1m 30-40. 1f -5, 2f 5-10, 1f 30-40
Goveneur & Benjamin Butterfield listed immediately after.

Green Butterfield was paid for jury duty as a Petit Juror, Schuyler Co, IL
March Term 1840, 6 days, $4.50
April Term 1841, 6 days, $4.50

I believe it is very likely this is the couple in 1850:
Twp 11N, 2E, Knox Co, IL, Hh 53
Green Butterfield, age 48, b. VT
Betsey, age 43, b. PA
Wm. 22, b. Oo. [prob this enumerator's abbreviation for Ohio]
Louisa 17, b. IL. Ellen 14, b. IL. Granville 10 b. IL. Lucretia, 4. b. IL. Benjamin 2, b. IL
James, 22, Mason, b. Oo. [same profession as Gouveneur Butterfield that married Betsey's sister. Appears to be son of Benjamin Butterfield & Polly Daggett. A nephew.)
Next door in Hh 54
Caleb Butterfield, age 30, b. PA
Polly 19, b. Oo.

1860 Census. Galesburg, Knox Co, IL, Hh 1884
Morris Griffeth, age 24, b. PA
Elisabeth, 26, b. PA
Green Butterfield, 55, farmer, b. NY
Elisabeth, 53, b. NY
Granville 19. Lucretia 15. B-Monroe, age 12 [Benjamin Monroe?]. All born IL

Perhaps:
1870 Census; Scotland Twp, McDonough Co, IL. P.O. Industry, Hh 36
Elizab. Butterfield, age 62, b. PA
Monroe, age 32, a gardner, b. IL

1880 Census. Macomb, McDonough Co IL, Hh 440
Elizabeth Butterfield, age 72, widow, b. VT, parents b. Mass.
Benjamin M., age 32, son, working at a Mill, b. IL, parents b. VT

Elizabeth is believed to be buried in an unmarked grave, in the same cemetery as her husband - Gibson Cemetery, Colchester, McDonough Co, IL.

Probably from an obituary:
Elizabeth Butterfield, died May, 22. 1883 age 74y 1m. Her maiden name was Avery and she married Green Butterfield in Columbus, Ohio. They came to Ill. in 1834 and settled in Schuyler Co. until 1845 when they moved to where Galesburg now stands, but which was almost trackless prairie. In 1861 they moved to Macomb where her husband died shortly after arriving here. They were a family of 10 children of which two survive, Mrs. George Gloyd and G.G. Butterfield.

Birth	1807	Pennsylvania
Marriage	19 Sep 1826	Franklin County, Ohio - Green Butterfield
Death	22 May 1883	McDonough County, Illinois

Spouse	Green Butterfield (1802 - 1861)
Child	William Butterfield (1828 - )
Child	Louisa Butterfield (1833 - )
Child	Ellen Butterfield (1836 - )
Child	Granville Butterfield (1840 - 1907)
Child	Lucretia Butterfield (1845 - 1868)
Child	Benjamin Monroe Butterfield (1848 - )

Father	DANIEL AVERY (1768 - 1848)
Mother	SARAH "Sally" Sargent (1772 - 1840)
Sibling	Stephen AVERY (1796 - 1849)
Sibling	Daniel AVERY Jr. (1797 - 1851)
Sibling	Mary "Polly" AVERY (1799 - 1850)
Sibling	Chancy AVERY (1801 - )
Sibling	WILLIAM AVERY (1803 - 1867)
Sibling	Anna "Nancy" AVERY (1804 - 1870)
Sibling	Pelatiah S. AVERY (1810 - 1891)
Sibling	Mariah Avery (1813 - 1844)
Sibling	Sarah "Sally" AVERY (1817 - 1849)