Main family names of expertise & interest are Schell, Frette/Frette, Ice, Clevenger, and Petty. In the 1970s, My grandmother Violet Johnson Petty did extensive geneaological work on the Frette, Petty, and Hill families, as sourced below. 
My male (Y-DNA 37 markers) haplotype is J-M172. My haplogroup (23&Me) is J-M241, also known as j2b2. Interested in locating other Schell males with the same haplotype, especially those with roots to early German settlers of the Tulpehocken region of Pennsylvania in the 18th century. Also interested in locating Germans living in or near Heidelberg who share this haplogroup. J-M241 is relatively rare among people with German heritage. UPDATE January 2019: I have identified another living Schell male who shares this haplogroup. Both of us are descendants of Peter Schell (1810-1854) via different sons.
My maternal (mitochondrial) haplotype is U3a1a (full mito-DNA sequence). This is a relatively rare haplogroup amongst Scandinavian people, which I have documented back to 1745 in Norway. Almost all of the closest matches of FT-DNA show a maternal ancestor in Scandinavia, mainly Norway and Sweden. The deep roots of this haplotype are in the Fertile Crescent.
I also have multiple connections to families in Rockport, Spencer County Indiana. I'm Interested in working with others to clarify the complex family relationships and (many) inter-marriages among the early settlers of this region. A disproportionate number of my DNA matches come from this branch of my tree, suggesting endogamy.
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Michael is 21 degrees from Ingrid Bergman, 32 degrees from Bernardo Bertolucci, 23 degrees from Diahann Carroll, 23 degrees from Claudette Colbert, 25 degrees from Ronnie Colman, 23 degrees from Kirk Douglas, 23 degrees from Rutger Hauer, 21 degrees from Cloris Leachman, 24 degrees from Marcello Mastroianni and 22 degrees from Mark Weinheimer on our single family tree. Login to find your connection.