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

Rounsavell, David

Clark, Hester

11 Sep 1823

Scioto Co.

2.  1830 Census Index and Digital Images (online at Ancestry.com; Image #3 of 16; extracted by Diana Gale Matthiesen):

1830

IN

Tippecanoe Co.

Randolph Twp.

p. 125

David Rounsall

010 001 - 200 010

These data indicate:

No. & Sex	Age Class	Therefore Born	Individuals Inferred
1 male	5-9	1820-1825	= Son A
1 male	30-39	1790-1800	= David
2 females	4 or under	1825-1830	= Minerva (b. 1827) = Daughter A
1 female	20-29	1800-1810	= Hester (b. 1804/5)

Listed one line above Samuel F. CLARK (æ 30-40) and three lines below William CLARK (æ 40-50), who appear to be Hester's brothers.  These are the only CLARKs in the county.  He is the only ROUNSAVELL/&c. in Indiana.  There are two ROUNSAVELLs in Ohio:  Aaron and Richard.

3.  1840 Census Index and Digital Images (online at Ancestry.com; Image #3 of 4; extracted by Diana Gale Matthiesen):

1840

MO

Grundy Co.

Franklin Twp.

p. 279B

James Clark

101 000 100 - 011 001 000

These data indicate:

No. & Sex	Age Class	Therefore Born	Individuals Inferred
1 male	4 or under	1835-1840	= David ROUNSAVELL Jr. (b. 1838)
1 male	10-14	1825-1830	= Perry CLARK (b. 1826/7)
1 male	40-49	1790-1800	= James CLARK (b. 1795/6)
1 female	5-9	1830-1835	= Jeannette ROUNSAVELL (b. 1831)
1 female	10-14	1825-1830	= Minerva ROUNSAVELL (b. 1827)
1 female	30-39	1800-1810	= Hester ROUNSAVELL (b. 1804/5)

Hester is said to be living with her brother, James CLARK, which appears to be the case.  Listed 14 lines above William CLARK (æ 50-60), who appears to be Hester and James's brother.  These are the only CLARKs in the county.

4.  1850 Census.  Mercer Co., MO (extracted by Lawrence May):

261-01	Clark, James	54	M			VA
261-02	Rounsall, Ester	45	F			VA
261-03	Rounsall, Jane	21	F			IN
261-04	Rounsall, Ginetta	18	F			IN
261-05	Rounsall, David	12	M			IA
261-06	Clark, Perry	23	M			OH

5.  Emails from Joleen Axtell, who cites the 1830/40/50 censuses and the 1871-1971 Centennial Celebration, Spickard, Mo.  Says Hester and her three children moved to Missouri by 1840 where they lived with her brother, James CLARK.  Son David died Sep 1859 according to 1860 Mortality Schedules of Mercer Co., MO.

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

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