1a.  Cordelia C. Gary.  1970.  Marriage Records, 1797-1850, Christian County, Kentucky.  LDS Film No. 0496899.  List of marriages for those requiring parental permission (i.e., underage marriages).  A John Thompson gave permission for an underage female to marry; he is most likely her father, but could be an uncle or older brother, etc.

LONG, Gabriel B.

THOMPSON, Martha E.

9 Jan 1832

John Thompson

1b.  Jordan R. Dodd, ed.  1993.  Kentucky Marriages:  Early to 1850.  Liahona Research, Orem, UT (Broderbund CD-229):

Long, G.B.

Thompson, M.G.

11 Jan 1832

Christian Co.

2a.  Census Index:  U.S. Selected Counties, 1840 (Broderbund CD-316):

Long, Gabriel B.

KY

Christian Co.

p. 192

2b.  Christian County Genealogical Society (Hopkinsville, KY).  1995.  Christian County, KY, Census Records, 1820-1830-1840.  Simmons Historical Publ., Melber, KY.  On p. 59 (of the book, not the census):

1840

Long

Gabriel B.

110 012 000 - 101 011 000

These data indicate:

No. & Sex	Age Class	Therefore Born	Individuals Inferred
1 male	4 or under	1835-1840	= Son B? John's son?
1 male	5-9	1830-1835	= Son A? John's son?
1 male	20-29	1810-1820	= Americus? (b. 1813/4)
2 males	30-39	1800-1810	= Gabriel (b. 1808/9) = John? (b. 1806-10)
1 female	4 or under	1835-1840	= Ann? (b. 1833/4)
1 female	10-14	1825-1830	= John's child?
1 female	20-29	1810-1820	= Martha (b. 1815)
1 female	30-39	1800-1810	= John's wife?

This record is very hard to figure; it would be a miracle if I've got it right.  John is Gabriel's older brother; Americus is his younger half-brother, who is living with them in the 1850 Census.  Neither John nor Americus appear in the 1840 census as heads-of-households.  The older female could be John's wife, and the older children theirs. Then again, if John is the older brother, why isn't he head-of-household?  I give up...  Ann is in the wrong age category, either that or her age in the 1850 Census is wrong.

3.  1850 Census Index/Microfilm (online at GenealogyLibrary.com):  District 1, Christian Co., KY, p. 488, 823/886, enumerated 9 Oct 1850 (extracted by Diana Gale Matthiesen — this record was very difficult to read):

Gabriel B. Long	41	M	Farmer		Ky
Martha E. Long	34	F			Ky
Ann L. Long	16	F			Ky
Mary F. Long	8	F			Ky
Kate Long	6	F			Ky
Geo. C. Long	4	M			Ky
Ned Long	1	M			Ky
America V? Long	36	M	Farmer		Ky

Americus Long, who never married, is Gabriel's half-brother.

4.  Census Index:  U.S. Selected Counties, 1860 (Broderbund CD-318):

1860

Long, Gabriel B.

KY

Christian Co.

Hopkinsville

p. 757

5.  LDS.  Family Search: Internet Genealogy Service:  AF - Ancestral File (online at FamilySearch.org).

6.  William Henry Perrin, ed.  1884.  County of Christian, Kentucky: Historical and Biographical.  F.A. Battey Publ. Co., Chicago.  A biographical sketch of James A. YOUNG on pp. 435-436.

7.  Messages in the Long Family Genealogy Forum (online at GenForum.com).