Category: Causey DNA Research

  • Solomon Causey – Locating His Land in Tennessee

    Solomon Causey Sr. Birth ABT. 1769 in Dorchester County, British Colonial Maryland and Death BEFORE APRIL 1847 in Johnson County, Tennessee, United States. Solomon Causey of Johnson County, Tennessee is the most probable link between the Thomas Causey-I line of Dorchester County, Colonial Maryland and the James Solomon Causey line in Fayette County, Alabama. The…

  • Bayesian and Genealogical  Analysis of Y‑DNA  Haplogroup T‑FTE75400

    22 November 2025. Probable Devon, England, Origin of the  Causey / Cawsey Lineage (ca. 900 – 1200 CE) I wish you all a joyful THANKSGIVING. Recently I’ve been testing the use of alternative intelligence, AI, in my research. While you must be very careful in framing what you ask for, I am becoming more comfortable in using AI as a tool in my genealogical research. One of the…

  • Can it be proven?

    Is John Causey (c1638-1698) of Dorchester County, Colonial Maryland the Great-Grandson of Nathaniel and Thomasine Causey of the Jamestown Colony of Virginia? 20 November 2025. Here, I present an essay that offers documentary evidence of the lineage of the first American in the Causey family, Nathaniel Causey of Jamestown and his connection to the Causey…

  • Nathaniel Causey: Age and Origin

    16 November 2025. In the last few years I have focused much effort toward connecting our documented ancestors in Maryland to the Causeys in Virginia, specifically Nathaniel Causey and sons Thomas and John. I believe I have established that connection. The most difficult research is connecting Nathaniel and Thomasine Causey to the homelands. If you’ve…

  • AI – Should We Use Artificial Intelligence?

    25 September 2025. Artificial Intelligence, can it make me a better Causey Clan Blogger? I am soon to begin my 79th year on this beautiful Blue Planet. Technology is quickly outpacing both my abilities and my motivation to learn new things. I need help improving my writing style and clarity. So, here’s my first attempt…

  • Documenting Solomon Causey/Cossey

    18 August 2025. Some of you American Causey/Cossey cousins have come to find out that just because we spell our surnames differently doesn’t mean we don’t have a common Grandfather. We know we possess a common terminal Y-DNA Haplogroup. We know that a mutation occurred sometime around 1750 splitting off from T-FTE36788, probably via a…

  • Y-DNA Update

    12 July 2025. Several Causey/Cossey males have recently purchased the Family Tree DNA Big 700 Y-DNA test. According to FamilyTreeDNA.com, “The Y chromosome is passed from father to son remaining mostly unaltered across generations, except for small traceable changes in DNA. By tracking these changes, we constructed a family tree of humankind where all male…

  • Where DNA and History Merge

    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.…

  • Ancestry Regional Inheritance

    6 September 2024 If you are tracking your Y-DNA at familytreeDNA.com and you have also done the Ancestry.com DNA test, you might find it interesting to take a look at your father’s regional ancestry. You can find it by going to DNA by Parent, then Region by Parent and scroll down to see a chart…

  • Who is Our MRCA

    2 March 2024. In both genetics and genealogy, the term Most Recent Common Ancestor (MRCA) refers to the most recent individual from whom two or more family lines are descended. Many, if not most, of the Causey/Cossey/Cawsey families are descended from those first Causey men who migrated from Great Britain and Ireland before 1700 AD.…