First-hand information. Entered by Paul Chisarik at registration.
Maternal relationship is confirmed by a 3,384 cM Family Finder match between Paul Chisarik and his mother Joyce Wittkofske.
Paternal relationship is confirmed by a MyHeritageDNA test match between Paul Chisarik and his 1st cousin twice removed. Their most-recent common ancestors are Alfred Svendberg and Hulda (Finstad) Johansen, the 2nd great grandparents of Paul Chisarik and the grandparents of his cousin. Predicted relationship from MyHeritage: 1st cousin twice removed - 4th cousin, based on sharing 83.9 cM across 5 segments.
Paternal relationship is confirmed by a Family Tree DNA Family Finder test match between Paul Chisarik and his 3rd cousin. Their most-recent common ancestors are their 2nd great grandparents Janos Csiszarik and Maria Soltész. Predicted relationship from FTDNA: 2nd Cousin - 4th Cousin, based on sharing 112 cM across 19 segments.
It may be possible to confirm family relationships by comparing test results with Paul or other carriers of his ancestors' Y-chromosome or mitochondrial DNA.
Y-chromosome DNA test-takers in his direct paternal line on WikiTree:
Family Tree DNA Y-DNA Test 37 markers, haplogroup R-M269, FTDNA kit #597316, MitoYDNA ID T11185[compare]