Forgot to list his parentage...and I haven't uncovered hers...
Father: Jacob Swimley b. 11 Sep 1770 PA Mother: Eleanor Lewis b. 7 JAN 1775 VA, dau. of David Lewis & Priscella Unknown (Widow of William Marchant)
Note: Jacob was young when his mother died in 1802. His Father re-married in 1804, to a widow named Catherine Snyder, originally born a Pulse.
NOTE:There's probably much more to uncover about Jacob, since he designed some Washington DC buildings at that time period...Where he went in PA - I do not know.I'm not even confident that when he went to Ohio that he was still with Sarah Cochran.While there's a marriage record for them.The 1850 census lists an Eliza C. - so I do not really know if she "is one and the same."
Also - while he is listed in his Father's 1824 Will, he is not listed on the later Deed that distributes property.I believe his brother, Lewis (who was also listed in the Will but not on the Deed distribution) was "with him" in D.C. - and possibly Champaign Ohio.