Take a look at Benjamin Allen born 1775 in North Carolina/Virginia who apparantly died in Bedford County Tennessee on 1842.A son of Benjamin, Benjamin Franklin Allen born 1814, married Jane Johnston, is enumerated in 1840 census of Bedford County Tennessee,comes up to Adair County Kentucky and is enumerated in Dist. 2, near a Robert Allen, born ca.1802 in Georgia, belived to be a son of James Allen b.1771 NC/GA, my ancestor.
I suspect Benjamin Allen Sr. is the one that married Anna Lawring. He might be the same one enumerated in 1840 in Warren County Tennessee.There is a Samuel Lawing living in Warren County Tennessee in 1830.Whether this Samuel Lawing/Lawring is related to a Ann Lawring I don't know!
This group of Allens look to be direct of a Josiah Allen and Elizabeth Deloach and his son, another Josiah Allen and Jennet Etheridge.