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As of August 10, 2015

All Roddys and Ruddys in project: 29

 - 29 test results in total: 1 yDNA-111; 25 yDNA-67; 3 yDNA-12
      - 12 of these from residents of USA
      - 14 of these from residents of Ireland
      - 3 of these from residents of England

News: A second project member has upgraded to yDNA-111; results will be available Aug/Sep 2015

Roddys and Ruddys born in/residents of USA: 12

      - 5 of these are direct ancestors of John Edward Ruddy, b. 1829 in Newry, Co. Down, Northern Ireland
      - 2 of these are Roddys, each unknown to the other before the test

Roddys and Ruddys born in/residents of Ireland: 14

      - 7 of these from the West Coast of Ireland (Co. Mayo, Co. Donegal, Co. Galway)
      - 1 of these from the East Coast of Ireland (Co. Louth)

Roddys and Ruddys born in/residents of England: 3


"11-13 Combo"

Roddy and Ruddy individuals who have the marker combination of DYF406s1 = 11 and DYS617 = 13.

The so-called "11-13 Combo" classification overlaps almost completely with the L-513 SNP.  All those who have the "11-13 Combo" at these markers descend from a single paternal ancestor who lived according to the best estimate around 2,500 years ago (ie, about 500 years before Christ).

There is a very large "11-13 Combo"/L-513 project group on FamilyTreeDNA, as well as a Yahoo Group.  Roddy and Ruddy individuals in our surname project can be found in sub-group D-2... click link and scroll down to see it.  We share a common paternal ancestor with all members of the "11-13 Combo"/L-513 project group, and the same applies to the D-2 sub-group.  Those in D-2, however, share a paternal ancestor not as far back in time.  No one knows how far back, but this male probably lived 1,000 to 2,000 years.

Since the onset of this surname project, a couple of individuals have completed full genome testing ("BigY") and their results have revealed a possible further refinement in R-L513 to CTS3087, and even further to BY390. This is only based on two Roddy individuals with ancestry in the County Down, Northern Ireland region, however, and more testing is needed with other Roddy and Ruddy men.

More information on these projects can be found here:

FamillyTreeDNA R-L513 and Subclades Project at

(WARNING: The above link takes you to a large data page which is slow to download, so be patient if your browser stops responding for a few minutes, depending on your connection speed)

R1b-L513-Project Yahoo Group at

R1b-L513 Descendent Tree Chart located

"Non 11-13 Combo"

Roddys and Ruddys Who Do NOT have the marker combination of DYF406S1 =11 and marker DYS617 = 13. 

Roddy and Ruddy individuals in the "11-13 Combo" subgroup and those in the "Non 11-13 Combo" are not related to each other in recorded history.  The Most Recent Common Ancestor between the two groups lived at least 2,500 year ago.  Individual members in the two groups have Most Recent Common Ancestors that may have lived much further in the past (best estimate 3,000 to 5,000 years ago).

Niall of the Nine Hostages

The Y DNA signatures of a number of Roddy and Ruddy individuals in our project indicate they are descendents of "Niall of the Nine Hostages," a 5th century Irish warlord and chieftain known for raiding the coasts of Britain and France to plunder and take hostages.  For more on Niall click on links:

FTDNA post

Wikipedia post