judym on Family Tree Circles

All of the research shows George Franklin, Born 1869 TN to be the son of
John Franklin and Mary G. McSwain. Both born in NC.
And, that they go back to David McSwain, from Scotland approx 1732.

The problem; our family papers show Our ancestory to be from Ireland, arriving in America 1636.
So, therefore, I am not sure that John and Mary are the correct parents.
I am trying to trace it back, OR forward, but hitting brick walls, or things not adding up
both directions.
Any information on George Franklin McSwain prior to 1900,
and any information on McSwains in America from 1600 thru 1740
Would BE GREATLY appreciated.
Judy