McKean/McKen

[sancti]

Unfortunately it looks like the marriage records for McKen/Laing and McKen/Brown have not survived so it may be the end of the line for this branch of your family tree.

[telmark]

but you need to bear in mind that it is possible that there was another Thomas of similar age but possibly a different spelling whose baptism record has not survived.

but that person may have a surviving marriage or death record, may appear in court or land records, census or militia records etc etc.

Its a case of research each and every one of them to eliminate them from the process.

I found a grandfather through a 1782 court record where it named his father, I had his marriage, death, various other court records, militia, books and a magazine article from 1822 but no positive birth until the 1782 court record (which had been mis-filed)