William T McGregor (b. abt 1799 TN) married Mary "Polly" Allen (dau of Joseph Allen) in Marengo County, AL in 1828. He purchased land there in 1833-35-37. A John McGregor purchased land in 1824, and his widow, Nancy, in 1835. John died in 1831, and Nancy abt 1840. I would like to identify which John this is. This group has ties to Wilson County, TN, where you find the family of Flowers McGregor. Ultimately I want to identify the parents of Lucy Jane McGregor (b. abt 1822 AL), who married Joseph Vaughn in 1845. She could possibly be a daughter of William (from a previous marriage), or his younger sister (a daughter of John). Any enlightenment on this subject would be appreciated.