Abner Perrin Jr of 1798 and his wife, Mary Carson Patterson would have 2 children:
1) Robert Perrin
2) Abner Perrin born in 1827 and married to Emeline Butler of Edgefield District
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In 1850, Abner and his family were residing in Edgefield, South Carolina and just 4 years later, he died in Sumter Co, Alabama.

Abner's Probate Papers and Documents from Sumter County, Alabama had a receipt included in them which showed the payment for Caskets and Horses dated 20 Jul 1854. There was also a notation in the documents that Abner had died in the "Summer of 1854".

Also included in the Documents, a paper showing:
Mary C Perrin, widow of intestate, residing in Kemper Co, MS

Sons:
Robert O Perrin, Kemper Co, MS
William A Perrin, Kemper Co, MS
Telemachus U Perrin, Kemper Co, MS
Napoleon P Perrin, Kemper Co, MS
Abner M Perrin, Edgefield Co, SC
James Perrin, Kemper Co, MS
Arthur L Perrin, Kemper Co, MS

Daughter:
Margaret C Blocker in Noxubee Co, MS
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1860 US Federal Census
Scooba, Kemper, MS

Mary C Perrin Age 60 (1800) SC
N Perrin Age 23 and wife Isabella Age 20 MS
Arthur L Perrin Age 17 SC
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1860 US Federal Census
Scooba, Kemper, MS

James H Perrin Age 21 (1839 SC)
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1850 US Federal Census
Edgefield, SC

Abner Perrin Age 52 (1798) SC Planter
Mary Perrin Age 50 (1800) SC

A M Perrin Age 21 (1829) Lawyer
W A Perrin Age 19 (1831)
T W Perrin Age 17 (1833)
N P Perrin Age 13 (1837)
James H Perrin Age 10 (1840)
Arthur Perrin Age 8 (1842)
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Sons of the American Revolution Application, submitted by John William Tamblyn dated 21 Mar 1952 showed:

Abner Perrin was born 23 Sep 1796 and died April 1860
Wife: Mary Carson Patterson was born 21 Aug 1799 and died 16 Aug 1877, married 26 Aug 1819

A Family Tree on Ancestry.com shows that Mary Carson Patterson was born 8 Oct 1796 in Woodvine, Abbeville, SC and died 3 Jul 1863 in Abbeville, SC
(The last source document found for her was the 1860 Census - could she have died on that date of 3 July 1863?)
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The Index-Journal (Greenwood, SC) Saturday, 19 Jun 1948

The old Perrin Family Burying Ground. Some 50 or 60 persons, probably, are buried here but the only markers are field stones on which no inscriptions could be made.