The Underhill Society of America
The Underhill Society of America

Underhill Surname Y-DNA Project

YDNA Project Report for 2017 Annual Meeting
Downloadable version in "Member Login"-"Secure Download"
YDNA Project Report
9-30-17 ‚Äč
The Underhill YDNA Project continues to slowly increase its participant base.  There was only one new participant this past year bringing us to a total of forty one.  We continue to use the 37 marker level for new participants and encourage upgrades to 37 markers for past participants.  One of the things we learned in recent years is that the 12 marker test is not adequate for purposes of determining if the various Underhill immigrant lines share common ancestry.  Targeted upgrades helped resolve questions that use of the 12 marker tests had created.  At present we do not have any YDNA-based indication that any of the North American immigrant lines are connected. 
We definitively know the YDNA signatures of seven North American immigrants, up from six a year ago:
Capt. John of Boston, MA
William of Kent County, MD
John Wesley of TN
Sampson of NH
John of Guilford County, NC
Giles of Surry County, VA
William of Morristown, NJ
There is one participant each from the following six North American immigrant lines but nothing can be concluded here until we have additional participants from these lines:  
John of Cecil County, MD
Samuel Baker of Cincinnati
James of Washington County, TN
James of NY and MI
Thomas of Somerville, MA
Joseph of Eaton County, MI
The John of Cecil, MD descendant has an extremely rare YDNA signature and had upgraded to the 37 marker level for future reference.  We very much encourage other John of Cecil County, MD descendants to join the project.
We have five non-North American lines represented in the project:
John of Kent 1622, son of Edward
Henry James of Kent 1832, son of Walter James
Joseph of Warwickshire b. 1830, line goes back to g.grandfather Joseph 1724
John of Wales
Raymond of Australia (grandfather of participant from Australia, it is not yet known who the immigrant to Australia was)
We have a participant from the John of Montreal and Philadelphia line but in this instance there is a known in-family adoption that occurred.  The participant’s ancestor was adopted by his Uncle Underhill (his mother’s brother) and took the Underhill name.  Though these results do not define John of Montreal and Philadelphia they could be of value in the future to descendants of the Underhill adoptee. 
We have a participant from the Capt. John line with a known paternity event.  The participant’s great grandfather was born to the widow Underhill approximately 3 years after her Underhill husband died.  He was raised as an Underhill along with his half-brother Underhill from his mother’s marriage to a Capt. John descendant. In this instance the YDNA results ruled out a specific Capt. John descendant for whom it was speculated as having been the father.  Similar to the John of Montreal situation, the results could be of value in the future to descendants of that child born out of wedlock.  The participant hopes that his 37 marker test will provide a clue for traditional genealogy research as to who the father was.
We have a non-Underhill surnamed participant who was an Underhill by birth but was subsequently adopted by his stepfather. 
We have a non-Underhill surnamed participant who is an adoptee that thought his father might have been an Underhill.  The test results did not match current participants.    
To continue moving the project forward we need:
1)More participants to upgrade to the 37 marker test so that in the future when there are 12 marker matches we can determine if that is just clutter or if there is actually a link between lines.  At issue is the passage of time makes it more difficult, if not impossible, to make contact with past participants to request upgrades when those situations arise.  The more upgrades done preemptively the better off we will be.  An alternative is to file FamilyTreeDNA account passwords with the YDNA Project Manager so as to allow him to purchase upgrades as needed in the future. 
2)Additional participation from any of the noted lines with only a single participant
3)Participation from North American immigrant lines not currently in the project. 
4)More participants from the UK, Australia, and elsewhere in the world.  Matches with North American lines will help guide research.
In a nutshell, more volume is our friend as are more upgrades to the 37 marker level.   There is no such thing as too many participants. 
Please contact me if you have any questions at all.  Thank you for your support.
Bob Underhill
YDNA Project Manager

170 Quarterline Road
West Rutland, VT 05777-9338