Dutch Schenck yDNA & major developments
In 1650, the siblings Roelof Martense Schenck, Jan Martense Schenck, & Annetje Martense Schenck migrated from the Netherlands to America. At about that same time there was a birth in the village Ee, just east of Dokkum, Friesland: Geert Jocums. A descendant of Geert is a yDNA match to descendants of Roelof and of Jan. The Geert Jocums descendant’s 67 STR (Short Tandem Repeats) yDNA results may be viewed under Kit # N27042 at the Netherlands Dual DNA Project at www.familytreedna.com/public/Netherlands/default.aspx?section=yresults
In this project, the 67 STR markers yDNA results of the descendant of Jan Martense Schenck appear under Family Tree DNA Kit number 333428. Kit # B5237 is from a descendant of Roelof. Two additional Schenck yDNA matching profiles are available in the FTDNA database, but do not yet appear in the Netherlands Dual DNA Project. So far then, we have 4 mutually matching yDNA profiles from Dutch-origin Schenck-surnamed men, plus the Friesland man, all with common ancestry prior to the Schenck migration to America.
Kits N27042 & 333428 have a 63 of 67 STR markers match, so the Most Recent Common Ancestor of these descendants of Geert & of Jan has an 89% chance of having lived within the past 15 generations, according to the TiP calculator at FTDNA.
What do we know that might shed light upon our American Schenck genetic connections to a man born in Friesland?Georg Schenck van Toutenburg was a stadhouder (governor) of Friesland from 1521 to 1540. Sir Maarten Schenck van Nydeggen also was active in Friesland decades later. The widely reported connection between Schenck of America & Schenck van Nydeggen lacks convincing documentary support. Countless repetitions of a single flawed original genealogy is not convincing evidence. Church records should tell us something, but so far I have turned up nothing on microfilm, archives online, nor via a 2012 interview in Doesburg Netherlands with a local family history expert. Are the relevant records not in existence now, or are we looking in the wrong place? See my blog for a discussion of those issues: http://dutchancestorline.blogspot.com/http://dutchancestorline.blogspot.com/Let us see what genetic genealogy & history can suggest to us.
Friesland governor Georg Schenck van Toutenburg’s first wife died in 1521; he remarried in 1526. Georg had several male children, but so far I have found no online Schenck van Toutenburg record about a Jochums birth in Friesland. A product not by marriage? At one point, Georg captured the town of Dokkum, near the future birthplace of Geert Jochums, genetic kinsman of our Schenck-of-America line of interest. See http://en.wikipedia.org/wiki/Georg_Schenck_van_Toutenburghttp://en.wikipedia.org/wiki/Georg_Schenck_van_Toutenburg
Georg Schenck van Toutenburg was for a time a military foe of Charles II Egmond, Duke of Guelders (1467-1538). As an historical aside, Duke Charles II was the same guy who in 1530 ordered the eviction from Bleijenbeek Castle in North Limburg of young Derick Schenck Van Nydeggen (future father of Sir Maarten Dederickse Schenck van Nydeggen & of his brother General Pieter Dederickse Schenck van Nydeggen) & sibs, & their newly widowed mother. A pretty shabby thing to do, I think. Sir Maarten spent a lot of effort seeking to right that wrong. My timeline for him is at http://trees.ancestry.com/tree/39601901/person/19397544717http://trees.ancestry.com/tree/39601901/person/19397544717
It is reported that in 1656, Johannes Schenck was born in Zeeland Province; he migrated to America in 1683. He has been described as a cousin of our Roelof & Jan, but this has been disputed, as has any connection to Schenck van Nydeggen.The theory that Roelof & Jan were cousins of this Johannes Schenck can now easily be tested genetically, if a Schenck-surnamed male-line descendant of Johannes would kindly step up for the mouth swab. Please go for at least a 67 markers level of resolution. Any male DeBevoise Schenck descendant of Cornelius Schenck (b. 1790) would do nicely.
Today in the Netherlands there are few people carrying the surname Schenck, but there are a few thousand with the modern spelling of Schenk (nearly 3700 in 2007). Hopefully, as genetic genealogy grows in popularity in the Netherlands, some Schenck/Schenk yDNA samples might join the Netherlands DNA projects, where we now have a nucleus of Dutch-American Schenck samples. Samples from men living in Overijssel Province or the Achterhoek region of Gelderland might be more likely to derive from Schenck van Toutenburg, and men in and around North Limburg (including adjacent Germany) might derive from Schenck van Nydeggen. We may encounter other Schenck ancestries as well, as this surname is hardly unique to the Netherlands. The Schenck/Schenk van/von Toutenburg/Tautenburg lines had homes in East Prussia, Thuringia, Bavaria, & the current Czech Republic. Just that line alone had descendants widely dispersed through Europe. With yDNA, we can track back lineages for many centuries, form groupings of related lineages, & estimate number of generations back to Most Recent Common Ancestor between any matching pair.
The Schenck-yDNA-matching descendant of Geert Jochums additionally tested positive on the SNP (Single Nucleotide Polymorphism) marker U198, also called S29. The current corresponding haplogroup subclade for U198 can be found at the site of the International Society of Genetic Genealogy. www.isogg.org under “YSNP Tree”. Have a look at our Friesland kin’s Kit # N27042 in the U198 Project at www.familytreedna.com/public/U198/default.aspx?section=yresultsU198/S29 probably also is positive (= “derived” or mutated) in the yDNA of the descendants of our Roelof & Jan Schenck, but this has not been tested. U198 is downstream from SNP marker U106/S21 which is widely spread in Western Europe, but is “…most common in the Netherlands and northern half of Belgium”, and may have spread there from the eastern Rhine River basin.See http://en.wikipedia.org/wiki/Haplogroup_R1b_(Y-DNAhttp://en.wikipedia.org/wiki/Haplogroup_R1b_(Y-DNA)
My ancestor was Roelof Martense Schenck (b. abt. 1630). Roelof is a Dutch variant of Rudolf, which was a recurring given name in Schenck van Toutenburg ancestries. The given name Roelof has reportedly never occurred in the Schenck van Nydeggen ancestries, according to the author of this tree: http://home.kpn.nl/willypeters/Nydeggen/Nydeggen1/nydeg.htmhttp://home.kpn.nl/willypeters/Nydeggen/Nydeggen1/nydeg.htmThis tree author lives in North Limburg just south of Nijmegen, & has Schenck ancestry.
Roelof’s grave is under Memorial # 79649491 at www.findagrave.com & is located in the New Utrecht Cemetery in Bensonhurst, Brooklyn. The home of Jan, brother of Roelof, is in the Brooklyn Museum. www.brooklynmuseum.org/exhibitions/decorative_arts/period_rooms/schenck/jan_martense/