The 1840 census of Benton Co., AL (now Calhoun) lists on p. 61 Lewis Wolf with one male age 30-40 (b. 1800-1810), a female age 5-10 (b. 1830-1835), and a female age 20-30 (b. 1810-1820). It seems logical to me that this is the father of Demeris Woolf Couch. She was born in GA (therefore we need to look in GA for more information in 1830), but her father moved to Benton Co. AL where he is listed on the 1840 census. He died before 1850 and his widow Mary is listed on the census with one daughter (listed as Barbara). In 1852, the daughter married (as Demeris) John S. Couch. In 1870, the wife of John Couch is listed as Jinnie and in 1880 as Jamima--but her mother Mollie (nickname for Mary) Woolf is listed in the household as mother-in-law. Just throwing this out for evaluation and criticism.
In 1840, there was also an older Rebecca Wolfs/Wolfe listed on p. 64 of the Benton Co., AL census--in her household was a male age 15-20 (b. 1820-1825), a female age 20-30 (b. 1810-1820), and a female age 60-70 (b. 1770-1780). It seems likely that this is Lewis Woolf's mother and two siblings. Is she perhaps the widow of the Lewis Wolf listed in Dekalb Co., GA in 1830 (with two sons and a daughter that match very closely with the Lewis and two children listed above). There is also a Jacob Wolf listed in 1830 in Dekalb Co., GA who is a contemporary of the Lewis Wolf listed above.
Is it further possible that the older Lewis (b. 1760-1770 per the Dekalb Co., GA census) is the son of Henry Woolf of SC--his son Lewis has a birth estimate of 1774-1778, but since they are estimates, is it possible that he was really older? For what it's worth, Mary Woolf of Benton/Calhoun Co., AL lists her birthplace as SC.