Sparkey,
I'd love to hear your speculations. Thanks for taking the time. My ancestral heritage is so unknown I could have English or Polish links that I don't know about.
Thanks again.
Interesting... if you want to narrow it down further and determine if your family surname was originally Smither or Zyglewicz or something not in the public databases, you would need to upgrade to more markers. 37 via FTDNA should work. As is, we don't have enough info to say whether your family was recently from England, Poland, Ireland, or somewhere else.
Anyway, my guess for your patriline's migration goes something like this:
ca. 28000 YBP: Arrives in Europe as part of the Paleolithic Gravettian culture (as Haplogroup IJ)
ca. 22000 YBP: Continues into the Epipaleolithic Epigravettian culture near the Adriatic (as Haplogroup I2*)
ca. 12000 YBP: Continues into the Mesolithic Sauveterrian* culture north of the Alps (as Haplogroup I2c)
ca. 9000 YBP: Continues as part of Tardenoisian culture in Central Europe (as Haplogroup I2c)
ca. 7000 YBP: Continues as part of Linear Pottery culture in Central Europe (as Haplogroup I2c1)
ca. 4000 YBP: Sometime during the Bronze Age is absorbed into Unetice and/or Tumulus culture, is probably Indo-Europeanized/Celticized by then or sometime around then**
ca. 3000 YBP: I2c1 begins to expand from its most recent common ancestor, soon after joining and expanding with the Celtic Halstatt culture
*Probably the most speculative guess above... it's really hard to say here, but it does seem that I2c moved from the Adriatic to north of the Alps by the Mesolithic sometime
**How Central/Western Europe got Indo-Europeanized and Celticized is up to significant debate
After that, it would help to have your sample at higher resolution. My guess is that your ancestors ended up in modern Germany, got Germancized sometime around the Classical Period or Migration Period, and expanded with the Saxons or somebody. It's also possible that they ended up with the Belgae or somebody like that and expanded to wherever they ended up before the Saxons... it's still hard to say at this point.