I just looked at another letter from a relative and James C. McCready is listed as Born 12/30/1797 states Vermont ? died 8/26/1846 Johnson, Iowa. (first letter has born 12/13/1792 PA ?) different years different state
Also states * One of Captain Perry's men in War of 1812
Married to Mary Kirkpatrick born 1785 PA died 6/18/1848 Johnson, Iowa.Same info on both
So if you are looking for a Vermont it is a possibilty....