He earned his Master of Library and Information Science in 1999 from the University of Maria Curie-Skłodowska in Lublin, Poland, where he focused on the history of books and documents—particularly “Supralibros” in private collections from the 16th to 18th centuries. In 2003, Tadeusz became an Accredited Genealogist through ICAPGen, specializing in Polish research across all historical partitions of the former Polish-Lithuanian Commonwealth.

With his background in Information Science, he has a special interest in digital databases and is currently working on a Lemko Extraction Project. He has also contributed to a project documenting early Mennonite property records (pre-1830) in Polish archives.

Tadeusz has lectured in Poland (Warsaw and Opole), the United States (San Antonio, Salt Lake City, New Britain, Chicago, Michigan, Sacramento), and online for organizations such as FEEFHS and GRIP. He speaks Polish, German, and English, and can read Latin, Russian Cyrillic, and old German script. His love of history and travel has taken him to Denmark, Ukraine, Slovakia, England, Mongolia, Libya, and beyond.