Robert Allen
  Robert Allen and his brother James Allen were in Brunswick Co., VA by 1742 (Court minutes and Land records). His son Reynolds Allen (Sr.) and wife Mary sold land in Brunswick Co., VA 1745.

When the NC/VA state line was surveyed in 1746, NC gained land from VA and Reynolds Allen was put in Granville Co., NC (the part that later bacame Bute and then Warren Co., NC.)

Robert Allen shows up in the 1790 census, Granville Cty, Hillsborough dist. pg 89a pt 2

(ftp://ftp.rootsweb.com/pub/usgenweb/nc/granville/census/1790grn.txt)

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Other researchers show a different set of parents for this family. The LDS AF has:

Robert ALLEN (AFN:HLMX-7R)
Born: Abt 1703 Place: St. Peter's Par., New Kent Co., Va.
Died: Bef 10 1784 Mar Place: , Caswell Co., Nc.
Buried: 1784 Place: , Caswell Co., Nc.
Married: Abt 1720 Place: , , Va.

Father: Robert ALLEN (AFN:HLMX-H5) Family
Mother: Sarah WALKER (AFN:HLMX-JB)

Wife's Name
Elizabeth STOKES (AFN:HLMX-8X) Pedigree
Born: Abt 1702 Place: <, , Va.>
Married: Abt 1720 Place: , , Va.
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Information on this family - especially that Reynolds Allen is a son of Robert and Mary comes from researcher Sara C. Allen who says, "I sent the chapters Reynolds Allen & George Allen to the Millers for "Allens of the Southern States". Since then I continued to research and much more is now proved."