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

Corbin, Benjamin

Everhart/Everhartt, Polly

24 Apr 1834

Coshocton Co.

2.  1840 Census Index and Digital Images (online at Ancestry.com; Image #4-5 of 9; extracted by Diana Gale Matthiesen):¤

1840

OH

Coshocton Co.

Franklin Twp.

pp. 295B-296A

Line 13

Benjamin Corbin

001 001 100 - 230 011 000

0200000

These data indicate:

No. & Sex	Age Class	Therefore Born	Individuals Inferred
1 male	10-14	1825-1830	=
1 male	30-39	1800-1810	= Benjamin (b. 1809/10)
1 male	40-49	1790-1800	= ?
2 females	4 or under	1835-1840	=
3 females	5-9	1830-1835	=
1 female	20-29	1810-1820	= Polly (b. 1812/3)
1 female	30-39	1800-1810	= ?
2	persons engaged in agriculture

It's very hard to reconcile this record with Benjamin's record in 1850.  Obviously, there are two families living in this household, which accounts for the additional adults and children, but where is James?  Listed two lines from Benjamin's widowed mother, Elsey CORBIN, in one direction; and, in the other direction, listed three lines from James MOORE, husband of Benjamin's sister, Magdalene, who is two lines from Henry KREAMER, husband of Benjamin's sister, Elizabeth. 

3.  1850 Census Index/Images (online at Ancestry.com; Image #22 of 34):  Adams Twp., Coshocton Co., OH, p. 312B/624, 154/154, enumerated 11 Nov 1850, official enumeration date 1 Jun 1850 (extracted by Diana Gale Matthiesen):

Benjamin Corbin	40	M		Farmer	400	Vir
Mary       "	37	F				Ohio
James      "	11	M				Do
Mary       "	6	F				Do
Henry      "	5	M				Do

4.  1860

5.  1870 census:  Adair Co., MO