Listed in Tennessee Soldiers in War of 1812 are two David Adamsons.
Found in the War of 1812 database on Ancestry:
1830. No widow named Mary Ann found. In Delaware Co IN were a Jesse & a David Adamson, both age 30-40. About the same age as this David. The information for the children of David in Delaware Co does not match that of the children of David & Mary Ann, but then David was already deceased.
DAVID ADAMSON and MARY ANN ROBERTS were married on 2 November 1813 in Knox County, Tennessee.4 MARY ANN ROBERTS was born (date unknown).
In 1840 there is in Delaware Co a listing for a Nancy "Adamnson". there are three males in the household. One age 10-15 [Moses?], one age 15-20 [John?] and one age 20-30 [James?]. There was one female age 15-20 [Ruth?]. One female age 50-60 [Mary Ann's approximate age. And a female age 70-80. Nancy is often the nickname for Ann - could Mary Ann have used this name?
Listed next to the above Nancy was Jackson Adamnson with both a male and female child under 5 and himself and Rachel as age 20-30.
DAVID ADAMSON and MARY ANN ROBERTS had the following children: