This might help Mary A Latiner was born in South Carolina

1870 United States Federal Census
Name: Isham P Latiner
[Isham P Latimer]
Age in 1870: 64
Birth Year: abt 1806 *
Birthplace: Kentucky *
Home in 1870: Brewer, Pike, Arkansas
Race: White
Gender: Male
Post Office: Wilton

Isham P Latiner 64 *
Mary A Latiner 55 Birth Year: abt 1815 Birthplace: South Carolina
Charles C Latiner 19 all children born Brewer, Pike, Arkansas
Lydia M Latiner 17
Samuel Latiner 15
Isabella Latiner 11

1860 United States Federal Census
Name: J P Lattimer
[Isham P Latimer]
Age in 1860: 54
Birth Year: abt 1806
Birthplace: Kentucky
Home in 1860: Brewer, Pike, Arkansas
Gender: Male
Post Office: Wilton

J P Lattimer 54
M A Lattimer 46
N C Harris 22
L F Lattimer 21
W R Lattimer 17
W P Lattimer 15
S E Lattimer 15
C C Lattimer 10
L M Lattimer 8
S M Lattimer 6
Isabella Lattimer 3

1850 United States Federal Census
Name: Isam P Sattimore
[Isham P Latimer]
[Isam P Lattimore] ** this is what is on the Census
Age: 44
Birth Year: abt 1806
Birthplace: Kentucky
Home in 1850: Brewer, Pike, Arkansas
Gender: Male
Family Number: 128

Isam P Sattimore 44 *
Mary A J Sattimore 36 *
John A Sattimore 17
Merica J Sattimore 16
James McSattimore 14
Isam P McSattimore 13
Sayfoyette F McSattimore 11
Sansilte E McSattemone 9
W R McSattimore 7
Washington P McSattimore 5
Charles C McSattimore 1
...........................................................
Mary C Meers 12 ***
W F Meers 10 ***
Mary A E Meers 8 ***
Sarah E Meers 5 ***

all the above appear on the census
* I think this is Mary A J and Isam P Lattimore's second marriages.

*** I think these are the children from Mary's first marriage. If correct then Meers may be her married surname not her maiden name.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
This might be their marriage:

"Arkansas, County Marriages, 1837-1957"
Name: Isham Latimore
Event Type: Marriage
Event Date (Formatted): 21 Jan 1849
Event Place: , Montgomery, Arkansas, United States
Age:
Birth Year (Estimated):
Residence Place: Pike, Arkansas
Spouse's Name: Mary Mise **
Spouse's Age:
Spouse's Birth Year (Estimated):
Spouse's Residence Place: Gap, Montgomery, Arkansas
Marriage License Date:
Page: 211
GS Film number: 1011071
Digital Folder Number: 004331372
Image Number: 00398

** does say Mise on the records

This might help:

http://www.findagrave.com/cgi-bin/fg.cgi?page=pv&GRid=24212545&PIpi=9141237

http://www.findagrave.com/cgi-bin/fg.cgi?page=pv&GRid=24212545&PIpi=12534068

The entry below was attched to the Photo ending in =12534068

Isham Prewitt Latimer, son of John B. Latimer and Margaret "Peggy" Prewitt of Mercer County, Kentucky. Married first, Mary Caroline Henry, May 18, 1809 (second child and oldest daughter of Rev. John Henry and Ann Alexander, in Harrodsburg, KY). Isham P. Latimer came to Pike Co., Arkansas by 1837. Married second, Mary A. J. Meers, on January 2, 1849 in Montgomery Co., AR (widow of Moses Meers, who was a son of Rev. William Meers of Johnson Co., AR).

Children of Isham P. Latimer and Mary Caroline Henry:
1832 ? John A Latimer
1834 ? Merica Latimer
1836 ? James McKendree Latimer
1837 ? Isham Prewitt Latimer, Jr.
1839 ? Lafayette F. Latimer
1841 ? Lucetta E. Latimer
1843 ? William Ross Latimer
1845 ? Washington Pope Latimer

1846 ? Mary Caroline Henry, wife of Isham P. Latimer, died on September 18, 1846.

1849 ? January 2, 1849 ? Isham P. Latimer married Mary Ann Jane Smith* Meers, a widow with four children in Montgomery County, Arkansas.

Children of Isham Prewitt Latimer and Mary A. J. Meers:

1850 - Charles C. Latimer
1852 - Lydia M. Latimer
1854 - Samuel M. Latimer
1858 ? Isabel V. Latimer

* This might suggest Mary Ann Jane's maiden name was Smith

"Kentucky, County Marriages, 1797-1954"
Name: Jno Latimer
Event Type: Marriage
Event Date: 30 May 1803
Event Place: Mercer, Kentucky, United States
Spouse's Name: Peggy Prewitt
Spouse's Father's Name: Isham Prewitt
GS Film number: 000191842
Digital Folder Number: 004705525
Image Number: 00996

This is the only marriage I could find:

"Georgia, Marriages, 1808-1967"
Name: Moses M. Mears
Spouse's Name: Mary Ann Smith
Event Date: 11 Oct 1836
Event Place: Hall, Georgia
Indexing Project (Batch) Number: M71300-1
System Origin: Georgia-EASy
GS Film number: 424630

International Genealogical Index (IGI)

Moses M. Meers
birth: 30 April 1816
Hall, Georgia, Usa
death: 1845
Johnson, Arkansas

father: William Meers
birth: 7 March 1794
Pendelton District, South Carolina, Usa
death: 29 June 1873
Clarksville, Johnson, Arkansas, Usa

Mother :Frances Murphee
birth: 1800
South Carolina, Usa
death:

thanks so much this will help