Documenting the Lineage of Hubbert Causey/Cossey

21 April 2015. I have two Y-DNA cousins with whom I share the terminal Y-DNA haplogroup T-FTE75400. One of the two cousins’ surname is spelled CAUSEY, the other “COSSEY”. Sometime around 1750AD our ancestral Y-DNA Haplogroup T-FTE36788 mutated and now we have a common ancestor born about that date. So, when did the one line of Cosseys change the spelling of their surname? And, who is that nearest common ancestor? I think the Cossey line can be traced back to Hardin County, Tennessee. Here’s what I came up with:

Hubbert Causey was born in Dorchester Colonial Maryland in the early 1750s. The purpose of this document is to present prima facie evidence(evidence sufficient to establish a fact or to raise a presumption of fact unless rebutted), that Hubbert, aka Hubbard Causey was born to Thomas Causey, Jr. and his wife Roseannah Hubbert about 1752. Furthermore, that Aaron Causey of Stewart County, Tennessee and Luke Cossey of Hardin County, Tennessee are sons of Hubbard Causey (1752-Bef.1820). Analyze the following and see if you come up with the same conclusion: