Mary Ann may have been fibbing about her age later in life, so the birthyear on her tombstone may be wrong; otherwise, she married first at the age of 12.

1a.  Jordan R. Dodd, ed.  1993.  Georgia Marriages: Early to 1850.  Liahona Research, Orem, UT (Broderbund CD-226):

Vining, Samuel	Evans, Tabitha	Jan 13, 1820	Putnam Co.
Vining, Samuel	Mcbride, Jane	Dec 3, 1827	Crawford Co.

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

Samuel VINING Spouse: Mary A. MC BRIDE Marriage: 19 Jun 1852, Barbour, Alabama Source: Marriage Records, 1838-1928. Barbour County (Alabama). Judge of Probate

2.  1820 Census Index/Images (online at Ancestry.com; Image #1 of 4; extracted by Diana Gale Matthiesen):

1820

GA

Putnam Co.

Capt Wm Evans Dist

Roll M33_9

p. 84B

Ln. 14

Samuel Vining

000100-00100-0-100

no slaves

These data indicate:

No. & Sex	Age Class	Therefore Born	Individuals Inferred
1 male	19-25*	1794-1801	= Samuel (b. 1797)
1 female	16-25	1794-1804	= Tabitha (b. ca. 1801)
1	person engaged in agriculture
*In the 1820 Census, the third column is age class 16-18 and the fourth column is age class 16-25; therefore, any individual in column three is duplicated in column four.  By subtracting the number in column three from the number in column four, you can create an age class "19-25."

Listed six lines from John P. GLOVER.

3.  1830 Census Index/Images (online at Ancestry.com; Image #25 of 46; extracted by Diana Gale Matthiesen):

1830

GA

Crawford Co.

Roll M19_16

p. 405

Ln. 25

Saml Vining

120 001 - 100 010

000000-100000

These data indicate:

No., Race, Gender	Age Class	Therefore Born	Individuals Inferred
1 white male	4 or under	1825-1830	=
2 white males	5-9	1820-1825	=
1 white male	30-39	1790-1800	= Samuel (b. 1797)
1 white female	4 or under	1825-1830	=
1 white female	20-29	1800-1810	= Jane (b. ca. 1801)
1 female slave	9 or under	1820-1830	= ?

Listed one line below John GLOVER, who is six lines below Thomas W. GLOVER.

4.  1840

5a.  1850 Census Every-Name-Index/Images (online at Ancestry.com; Image #197 of 306):  Division No. 23, Barbour Co., AL, Roll M432_1, p. 206A, 1456/1496, enumerated 2 Nov 1850, official enumeration date 1 Jun 1850 (extracted by Diana Gale Matthiesen):

Samuel Vining

53

M

Carpenter

Geo

Yes, he is living alone.  Listed seven households from John P. GLOVER.

5b.  1850 Census Every-Name-Index/Images (online at Ancestry.com; Image #198 of 306):  Division No. 23, Barbour Co., AL, Roll M432_1, p. 206B, enumerated 2 Nov 1850, official enumeration date 1 Jun 1850 (extracted by Diana Gale Matthiesen):

1462	1502	John P Glover	65	M		Farmer	2500	NC
		Drucilla	57	F				Geo
		Mary	20	F				"
		Samuel	18	M				"
		Andrew	12	M				"
	1503	Washington Vining	19	M				"
		William	13	M				"
		George	12	M				"
		Georgiann Evans	18	F				"
		Franklin Caren	1	M				"
		James Glover	9	M				Ala

5c.  1850 Census Every-Name-Index/Images (online at Ancestry.com; Image #231 of 306):  Division No. 23, Barbour Co., AL, Roll M432_1, p. 223A, enumerated 15 Nov 1850, official enumeration date 1 Jun 1850 (extracted by Diana Gale Matthiesen):

1734	1780	John McBryde	73	M		Farmer	1500	Geo
		Rachel	68	F				"
		Sophia Carlisle	42	F				S C
	1781	Eliza J Vining	13	F				Ala
		Anna       "	5	F				"
		Alberton Barnes	24	M		Overseer		Geo

John & Rachel McBRIDE are Samuel's in-laws, that is, maternal grandparents of Eliza and Anna VINING.  Listed next to John & Rachel's widowed daughter, Mary Ann (McBRIDE) McBRIDE, whom Samule married in 1853.

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