Is there any proof that John A. Dugger is a son of Joel and Hester?
On 7 Feb 1836 John Dugger married Mary Drake in Carter Co., TN.
They were listed on the 1840 census in Carter Co., TN:
* Carter Co., TN page 188 John A. DUGAR 0000100000000-0010100000000
* Analysis:
* 1 male 20-29 (1810/1820)=John A. Dugger (1813)
* 1 female 20-29 (1810/1820)=Mary Drake Dugger (1810/1820) wife
* 1 female 10-14 (1825/1830)=Unknown
I wasn't able to find them on the 1850 census.