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Our Family Genealogy Pages

Strong DNA


Strong Family DNA

We are delighted to report that the Jacob Strong Family Organization was invited to participate in an international study of DNA for the Strong surname.  Two of our male Strongs contributed DNA samples.  To see the report, go to:  Click on either #17527 (descended through William Strong) or #17528 (descended through James Thomas Strong) to see the 25 marker test results and comparison.  David Strong, the head of this study, said, “It fits perfectly with the Strange of Balcaskie pattern.   My first impression is that Schim Strang/James Strong of York County, PA probably came from County Down or County Antrim, in Northern Ireland, if he was from Ireland at all.  He might more likely have come from Scotland.  Perhaps from Scotland to Northern Ireland, and then on to Pennsylvania.”

Why Does Y Chromosome Testing Work?

All humans are made up of cells, and all of our nucleated cells (with the exception of gametes) contain 23 pairs of chromosomes. The 23rd pair are called the sex chromosomes. Females have two X chromosomes, and males have one X chromosome and one Y chromosome. The Y chromosome is passed down to males directly from their biological father. The Y chromosome is passed down from father to son relatively unchanged from generation to generation. The manner in which the Y chromosome is passed down along the male line is the same manner in which the surname (last name) is passed down from father to son in most cultures. Because of this manner of inheritance, the Y chromosome of a male individual is the same or very similar to the Y chromosome of his forefathers along his male line. Also, all direct male descendents of a common male forefather have the same Y chromosome. Thus, the Y chromosomes hold valuable information about the ancestry of a male individual and allow a male to trace all other males which share the same forefather as himself.

Has anyone else out there found other concrete clues to link our James Strong, Jr. to James Strong, Sr. and to their Scotch/Irish ancestry? If so, please send an e-mail to