Levi is the brother of Nancy Ann ENYEART, who married Sophia's brother, David G. CORBIN. 

1.  Marriage Record:

2.  Census Index:  U.S. Selected Counties, 1830 (Broderbund CD-315):  the only Levi ENYEART/ENYART in Ohio in 1830 is in Miami Co., but Levi is said to have been in Hamilton Co.  Ancestry.com is down for the moment, so I can't check the record.

3.  1840 Census Index and Digital Images (online at Ancestry.com; Image #5 of 7; extracted by Diana Gale Matthiesen):

1840

IN

Wabash Co.

Lagro Twp.

p. 6B

Levi Enyart

122 011 - 001 001

These data indicate:

No. & Sex	Age Class	Therefore Born	Individuals Inferred
1 male	4 or under	1835-1840	= Thomas (b. 1838/9)
2 males	5-9	1830-1835	= Joseph (b. 1834/5) = William (b. 1833/4)
2 males	10-14	1825-1830	= Jacob (b. 1826/7) = Son A
1 male	20-29	1810-1820	= ?
1 male	30-39	1800-1810	= Levi (b. 1802)
1 female	10-14	1825-1830	= Daughter A
1 female	30-39	1800-1810	= Sophia (b. 1800-04)

The male in his 20's was born before Levi and Sophia were married.

4.  1850 Census Index/Images (online at Ancestry.com; Image #12 of 66):  Lagro Twp., Wabash Co., IN, p. 303B, 82/85, enumerated 10 Aug 1850, official enumeration date 1 Jun 1850 (extracted by Diana Gale Matthiesen):

Levi Enyeart	45	M		Farmer	2500	Penn
Alsey Ann "	24	F				Virg
William   "	16	M		"		Ohio
Joseph    "	15	M		"		"
Thomas    "	11	M				Ina
Joshua    "	6	M				"
Judith M  "	5	F				"
Sophia    "	4/12	F				"
William Hunt	11	M				N York
George Bidwell	25	M				"

Listed next to Abram ENYEART (æ 27, b. IN, wife Effa), who is two households from Benjamin Enyeart (æ 27, b. OH, wife Nancy), who is next to Joseph ENYEART (æ 57, b. PA, wife Margaret), who is five households from Jacob ENYEART (æ 23, b. OH, wife Sarah).  Levi had a brother, Joseph.

5.  Broderbund.  World Family Trees.  Vol. 40, Pedigree No. 356.

6.  Messages in the Enyeart Family Genealogy Forum (online at GenForum.com).

7.  WorldConnect / Ancestry World Trees (online at RootsWeb.com/Ancestry.com).