Well, I have joined the Guild of one name studies. We have a really nice open website at: http://freepages.family.rootsweb.ancestry.com/~bonsteinandgilpin/
It can help you understand what DNA testing has to offer you.
Now what's happening with our Gilpin DNA.
We have eleven men tested, one pending results, one kit still out. Of the eleven, ten are GIlpins, one is a McAlpine.
There are four different genetic lineages, two are Gilpins with four each matching members; of the other two, one is a known NPE because his DNA matches an Aires surname tested male. The other a probable NPS, as he has a match with a non Gilpin surname. The McAlpine, does not match anyone yet..
Of the two groups, Group A and Group B, there is no possibility of a genetic relationship within 10,000 years or so as they are different Haplogroups. R1b1b2* and I2a. On the open website listed above there is some gathered information on the haplogroup tree. An interesting read.
Remember to visit both sides of our one surname study..
Genealogy - http://freepages.history.rootsweb.ancestry.com/~bonsteinandgilpin/
GOON # 5139