Have I said I had my DNA tested, through Ancestry.com? (Not necessarily a plug for ancestry, by the way.) Anyhow, I did and the results came through just before Marjorie and I left for our trip.
Of course, the paternal DNA test would work to identify Harshaw males--the son, of a son of a son, etc. The maternal works the mother's side, so that's a Hoeppner. I'm still struggling with the Ancestry software on the DNA side, but I've made connections with a (third???) cousin in England, trying to figure out the intermediate linkages.
If any one is interested, here's the link for the discussion group on ancestry which contains our back and forth. Right now it's public, and hopefully can remain so.