Sunday, December 7, 2025

A Speculative Popp Family Tree

 I have spent decades deciphering how my late father's paternal Popp family is related to both those Popps we "knew" were cousins, and those cousins who appeared when he graciously consented to have his DNA tested and uploaded to as many genealogy sites as possible. 

Andrew Popp, my father, was a first generation American, born to immigrants from the Carpathian Mountains in what was Hungary when his parents were born. It's a remote spot, ruled by more nations and monarchs than I can calculate. He identified as Carpatho-Rusyn but thought his father might have been at least part Hungarian. One day I may get into the differences between citizenship and ethnicity, but for my purposes here it's enough to point out that my father's own DNA ethnicity results show most of his paternal ancestry from what is now the Transcarpathian region of Ukraine. 

His father, Stephen Popp, was born Stefan Pap, a grandson of another Stefan Pap, in the village of Berezna, Maramaros County, Hungary (today it is known as Berezovo, Zakarpattia Oblast, Ukraine). He maintained contact with three men he considered cousins in the United States - Frank Popp and John Popp, both born in Kovesliget, Maramaros, Hungary (now Drahovo, Zakarpattia Oblast, Ukraine) and sons of men bearing the same names; and Joe Popp, who was also born in Berezna and a grandson of a Ferenc/Frank Pap. We knew that John and my grandfather were related through John's mother, Ilka Papp, but not what the relationship was. Our attempts at formulating a family tree were complicated by the fact that none of our furthest "known" ancestors shared the same name and we had limited access to any records. 

After DNA testing became available lots more "American" cousins appeared, but few had any information on where their families had originated. I eventually gained access to church records from Berezna and Kovesliget which helped. Some. But what really helped was newer genetic genealogy tools that allowed me to use DNA match data from the web of matches and from multiple testing companies. Using frameworks developed on DNA Painter I was able to finally construct a very speculative tree on BanyanDNA that does fit within all the information provided by 15 matches on my father's paternal side. 

I pieced together screenshots of the tree and the calculation results. The purple boxes represent people who did DNA testing at Ancestry, My Heritage or 23andMe. The purple lines are connections that we have either documented or have personal knowledge of from our parents or grandparents. The yellow lines are speculative relationships. The cluster of yellow lines in the center of the tree are believed to be descended from a child Stephen Popp had before he emigrated to the United States. We were told the child existed, but nothing more. Not even the gender. 

The work is complicated by the fact that there are multiple cousin marriages and marriages to Tegzes (my grandfather's mother) and Stoyka/Stoykos (his grandmother). What little information I have on the European matches we believe descended from my father's unknown half-sibling strongly suggests at least two of them also have Tegze ancestry apart from what they inherited from Stephen Popp. 

Speculative Popp Family Tree from BanyanDNA. Best viewed on other tab. 

Descendents of Frank and Joe Popp have tested. Their results support Frank and Joe's closer connection to one another but also support a slightly more distant relationship to Stephen's family. No known descendants of John Popp have tested. 

DNA testing suggested two possible siblings to Stephen's father Ivan. Documentation from Berezna church records confirmed that the Maria Papp who married Pete Stoyka was a sibling and supported the theory that there was a brother Nicholas whose great-grandchildren showed up as strong matches. I found it especially moving in light of current events in Ukraine that testing is allowing those separated around the world to reconnect. Testers live in Cyprus, Sweden, New Zealand, Australia, Ukraine, Slovakia, and the United States. 

BanyanDNA validation calcuation. 
 
This is by no means a definitive tree. Several of the matches are well outside normal ranges, though if there are additional Tegze relatives that would explain much of the variance. I hope to follow up with all the testers and get further information, if available. But it is the first time I've come up with anything that seems remotely possible given the DNA tests. Pretty exciting after decades of work.