GREGORY's came to the United States from several countries early on in United States history. Many of these GREGORYs appear to have traveled and/or settled together.  Were they related?  Some of these GREGORYs had changed their names from McGREGOR and many of the GREGORYs use the same first names over and over (William, John, Thomas), making tracking them a challenge.  Lack of available records to prove parentage of these GREGORYs has been frustrating and it is thought that DNA testing can help with some hints of where to look, or not look. The new BigY700 test is helping to break down some of the paper brick walls.  

The GREGORY DNA Project utilizes YDNA testing to group the many GREGORY surname variations lines together, with the hope that these groups can work together to push the information on their lines farther back.  The project currently has members with the variations of GREGORIE, GREGORIO, McGREGOR, and GREAGREY, along with other surnames that show a direct tie with the GREGORY surname on the Y Chromosome. We currently have kits from Australia, France, Italy, New Zealand and England and we would love to see many more from other countries.   

We highly suggest upgrading to the BigY700 test to obtain a specific haplogroup that really helps to identify specific paternal lines.  The Gregory groups who have the most who have taken the BigY700 are really starting to get past some of the paperwork brick walls with science.