Notes for William David McSwain: It seems likely after I have reviewed and compared sources for several months, that this William David is the same as some sources show for David. Birth dates vary, so the names get entered as separate individuals sometimes. This William David shows up as David or as William. I still show another child named David. This is likely the same person as this, with a different reported (estimated) birth date, usually 1721, whereas a common estimated date for William David (or David) is 1725.
Douglas McSwain in his McSwain Genealogy (http://familytreemaker.genealogy.com/users/m/c/s/Doug-Mcswain/WEBSITE-0001/UHP-0001.html) seems to indicate that his entry for David is the same as the other entry I have here from various other sources as William David.
Most sources list the place of birth for this William David McSwain as "On the open sea, Isle of Skye, Scotland). It is not clear from this if they mean he was born on a ship that happened to be out at seas at that time, from its base in Skye, or if they mean on a ship that had set sail for America from Skye. Likely the latter. But then it is not logical to include Isle of Skye in the location for place of birth!
It appears to me that William David (William I, or William David Sr) was born on the ship taking his parents to North America. Various events find them in Pennsylvania, Virginia, then North Carolina. Sources differ on the birthplaces of some children.
This William McSwain appears to be the one whose military gravestone is found in the McSwain Cemetery in Cleveland (Then Rutherford) County, North Carolina. This has no dates but indicates he was a member of Brevard's Company #10 in the Revolutionary War. -- http://www.rfci.net/wdfloyd/cemm5.html
The gravestone has no dates.
More About William David McSwain: Burial: Unknown, McSwain Cemetery, Cleveland Co, NC.7938
More About William David McSwain and Susanna Hamrick: Marriage: 1748, Orange County, North Carolina.7939, 7940
Marriage Notes for William David McSwain and Susanna Hamrick: _MARRIED
Children of William David McSwain and Susanna Hamrick are: