Haplogroup R1b
***The test result for Kit #4790 represents an unproven Ivey/Ivy line which is not currently tied to a known ancestor.
***The test result for Kit #7629 represents a known case where the great-grandmother (who was an Ivey) of the participant had a son who assumed her surname and not that of the father. Thus, it is not representative of the male side of the Ivey/Ivie/Ivy family.
The R1b test results for the other parties appear to suggest the possibility of something like a "Celtic" line or at least a Western European line. The R1b is quite different from the R1a recorded for several other Iveys, with the R1a suggestive of a Norman or Scandinavian origin consistent with some histories of a family in England.
At the current time there does not appear to be any close relationships between these R1b Iveys. The only R1b participant with a known connection to the British Isles is Kit #31365. None of the participants have any significant matches with other participants except for Kit N35164 who matches a participant from another Y-DNA surname project. The other participant is a known adoptee, and is currently working to determine a possible match with Kit N35164.
After the Roman Empire left early Britain, there was a wave of immigration back from Ireland into Western England and Wales. The St. Ives church and city in Cornwall, England, was supposedly founded in honor of St. Ia who came from Ireland to settle in the Cornwall area. It's possible that with the later assumption of surnames in the area, many people assumed the name Ivey/Ivie/Ivy. A population distribution map of England and Wales in 1871 shows a heavy concentration of the surname along the Western coast of England and Wales.