1a.  Anon.  1966.  Marriage Index:  Ohio, 1789-1850.  Liahona Research, Orem, UT (Broderbund CD-400):

Cup, Jacob	Cowen, Nancy	28 Mar 1828	Fairfield Co.
Fentsemaker, Jacob	Cook, Nancy	11 Nov 1849	Pickaway Co.

Surely "Cook" is either a mis-hearing or a mis-reading of "Cupp."

1b.  LDS.  Family Search: Internet Genealogy Service:  IGI - International Genealogical Index (online at FamilySearch.org).

Jacob FENTSEMAKER Spouse: Nancy COOK Marriage: 11 Nov 1849, Pickaway, Ohio Source: Marriages, 1810-1952. Pickaway County (Ohio). Probate Judge

Surely "Cook" is either a mis-hearing or a mis-reading of "Cupp."

2.  1850 Census Index/Images (online at Ancestry.com; Image #29 of 55 — indexed "Capp"):  Bloom Twp., Dist. 41, Fairfield Co., OH, p. 236A, 1570/1570, enumerated 13 Sep 1850 (extracted by Diana Gale Matthiesen):¤•

Fenstermaker Jacob	42	M	Brick Maker		O
____________ Nancy	44	F			Va
Cupp John	5	M			O
Fenstermaker Leah	15	F			"

Jacob and Nancy are newlyweds.  John is Nancy's son by a former marriage; Leah is Jacob's daughter by a former marriage.

3.  1860 Census Images (online at Ancestry.com; Image #26 of 40):  Greencastle P.O., Bloom Twp., Fairfield Co., OH, p. 146B, PN 26, 183/175, enumerated 11 Jun 1860, official enumeration date 1 Jun 1860 (extracted by Diana Gale Matthiesen):¤•

Jacob Fenstermaker	52	M		Farmer		200	Ohio
Nancy      "	51	F					Va
John Cupp	16	M		Farm laborer			Ohio

John is Nancy's son by a former marriage.

4.  1870 Census Images (online at Ancestry.com; Image #7 of 15):  Casey P.O., Ridge Twp., Wyandot Co., OH, p. 804A, PN 7, enumerated 7 Jun 1870 (extracted by Diana Gale Matthiesen):¤•

1870:  for an explanation of the column headings, please see What the Numbers in the Federal Census Mean (missing columns contained no data).

1

2

3

4

5

6

7

9

10

13

16

17

19

48

48

Cupp John

26

M

W

Farmer

300

Ohio

/

/

____ Mary J

32

F

W

Keeping House

Ohio

/

[John & Mary's children]

Fenstermacher Jacob

63

M

W

Stone Mason

Ohio

/

/

_____________ Nancy

62

F

W

Keeping House

Virginia

Mitler Susan

70

F

W

At Home

Pennsylvania

/

/

John is Nancy's son from a prior marriage, and Susan MITLER appears to be John's mother-in-law.

5.  1880 United States Census and National Index (LDS Family History Resource File: CD-ROM Library):¤•

Census Place: Big Spring, Seneca, Ohio
Source: FHL Film 1255065; NARA Film T9-1065; Pg 304C
	Relation	Sex	Marr	Race	Age	Birthplace	Occupation	Fa	Mo
John J. CUPP	Self	M	M	W	36	OH	Farmer	OH	VA
[John's wife and children]
Nancy FENTZMAKER	Mother	F	S	W	74	VA	At Home	VA	VA

6.  Foor/Foore/Fuhr Genealogy Web Site.