1.  Marriage Record:

2.  1840 Census Index/Images (online at Ancestry.com, Image #114-115 of 129; extracted by Diana Gale Matthiesen):

1840

TN

Montgomery Co.

Roll M704_532

pp. 282B-283A

Ln. 7

T S Thompson

200 000 100 - 010 010

201000-110000

0200000

These data indicate:

No. & Sex	Age Class	Therefore Born	Individuals Inferred
2 white males	4 or under	1835-1840	= Son A = Virgil (b. 1835/6)
1 white male	40-49	1790-1800	= Thomas (b. 1797/8)
1 white female	5-9	1830-1835	= Augusta (b. ca. 1834)
1 white female	20-29	1810-1820	= Penelopw (b. 1807/8)
2 male slaves	9 or under	1830-1840	= ? ?
1 male slave	24-35	1804-1816	= ?
1 female slave	9 or under	1830-1840	= ?
1 female slave	10-23	1816-1830	= ?
2	persons employed in agriculture

Listed 13 lines from B. BAYLISS.

3.  1850 Census Every-Name-Index/Images (online at Ancestry.com; Image #96 of 120):  Union Parish, LA, Roll M432_241, p. 396B, 776/776, enumerated 13 Sep 1850, official enumeration date 1 Jun 1850 (extracted by Diana Gale Matthiesen):

Thomas S Thompson	52	M		Farmer	600	Va
Penelopy    "	42	F				Tenn
Virgil      "	14	M				Tenn
James       "	6	M				Tenn
Ophelia     "	4	F				Tenn

4.  1860

5.  1870

6.  Barney Thompson. MS. The Thompson Family of Prince Edward County, Virginia, Butler and Trigg Counties, Kentucky, and the Florida Parishes of Louisiana:  the Descendants of Thomas Thompson, 1749-1810.  Copies at Western Kentucky University, the Filson Club Library, and the Indiana State Library, Indianapolis.  (Excerpts courtesy of the author.) 

7.  Barney Thompson, ed.  1996.  "Letter to the Editor of the Kentucky Telephone, December 20, 1889."  Pages 6-10 in Pioneers of Trigg County, Kentucky, As Seen through the Biographical and Genealogical Articles of Cyrus Thompson in the Kentucky Telephone and the Cadiz Record, 1889-1899.  [MS] (online at the Trigg County KY GenWeb site).