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

George REID Spouse: Cornelia WELTY Marriage: 23 Mar 1870, Grundy, Missouri Source: Marriage Records, 1841-1916. Grundy County (Missouri). Recorder of Deeds

Is "Provia" actually Cornelia?

2.  1870 Census Every-Name-Index/Images (online at Ancestry.com, Image #18 of 27):  Rural Dale P.O., Liberty Twp., Grundy Co., MO, Roll M593_777, p. 312B, PN 18, 142/140, enumerated 15 Aug 1870, official enumeration date 1 Jun 1870 (extracted by Diana Gale Matthiesen):

Reed George	19	M	W	Farmer			Missouri
____ Provia	17	F	W	keeping house			Iowa
Reed Wm	59	M	W	Farmer	1400	500	Kentucky
____ Sally	51	F	W	keeping house			Kentucky

William & Sally are George's parents.

3.  1880 Census Every-Name-Index/Images (online at Ancestry.com, Image #27 of 27):  Medicine Twp., Mercer Co., MO, Roll T9_703, p. 123C, PN 27, SD 7, ED 229, enumerated 1 Jun 1880, official enumeration date 1 Jun 1880 (extracted by Diana Gale Matthiesen):

1880:  for an explanation of the column headings, please see What the Numbers in the Federal Census Mean (missing columns contained no data).

1

2

3

4

5

6

8

9

10

13

21

24

25

26

240

240

Reid George T

W

M

29

/

Farmer

MO

KY

MO

____ Provia A

W

F

27

Wife

/

Keeping House

IA

NY

E Va

____ Thomas L

W

M

9

Son

/

/

MO

MO

IA

____ Elvira A

W

F

7

Dau

/

/

MO

MO

IA

____ Sallie M

W

F

5

Dau

/

MO

MO

IA

Spickard Wm F

W

M

19

Nephew

/

at School

/

MO

IN

MO

William F. SPICKARD is the son of George's sister, Delilah (REID) SPICKARD.  Listed four households from George's parents, William & Sallie M. (THOMPSON) REID.

4.  1890 Census:  the 1890 Census Population Schedules were destroyed.

5.  Mrs. B.F. Hoover et al.  1964.  Groff (Groeff) Cemetery, Mercer County, MO (online at the Mercer County MOGenWeb site):

REID	George	1850	1924	Same stone as Provia Reid
REID	Provia	1853	1925	Same stone as George Reid