Here is what I have. George Allen, Dukes father, sold all of his land in Rockingham, NC on the 8 Sept 1788 and isn't recorded in Rockingham again. RE Allen thinks Duke was b. abt 1790 in Greenville SC,Isaac his brother being b. abt. 1794.the Duke we are following md. Sarah Lanford.
We have Duke after the War of 1812(he enlisted from 1812 to 1817)in Tenn. by June/July of 1820 on the census, he is unmarried.
RE Allen claims that records show that Duke return to Greenville, SC and married Sarah in Nov of 1820 and they returned to Jackson Co. Tenn with John Langford (Sarah's Brother).
I know nothing about a Duke and Francies Allen in Ala.
On the 1830 Census we have Duke listed in Jackson, Tenn but is missing on the 1840 Census. We believe he is listed on the 1840 census in Alabama with he family. But by the early 1840's he is back on his land in Jackson, Tenn.