Paulina Singleton/Archibald Dunaway, Rutherford Co., TN

I am seeking additional information on Paulina Singleton who married Archibald M. Dunaway in 1842 in Rutherford Co., TN.

On the 1850 Rutherford Co. census there are two young boys, Henry M.Dunaway, age 6, and James M. Dunaway, age 4, living with a Hazell and Lavina Singleton in Gambill District. Are these the children of Archibald and Paulina? Did either or both parents die?

On the 1860 census James M. Dunaway is living with other Singleton family members, but there is no sign of Henry M. Dunaway in the county.Hazell and Lavina Singleton cannot be found on the 1860 census, but Lavina does appear in 1870 and 1880 with other relatives.

It is possible Archibald Dunaway moved to Kentucky and remarried.