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- Created and maintain the one of the Internet’s single, largest individually owned and managed repositories of Prussian genealogy source documentation (biased towards West Prussia, East Prussia and Pomerania); the archives include maps, source documents, histories, guidance, and photographs
- Created and maintain one of the Internet’s most robust Prussian (Germany & Poland & Shoah) Research Support pages.
- 20+ years genealogical experience
- Adopted & Support three (3) FamilySearch Wiki pages: Westpreußen-West Prussia – Ostpreußen-East Prussia – Pommern-Pomerania
- Developed and maintain Shoah Statistics website.
- Create & maintain numerous Internet-based genealogical environments (including Castle Rock Colorado Genealogical Society, Columbine Genealogical & Historical Society)
- Author of hundreds of genealogy articles.
- Developer of numerous Genealogical Meta-search Web Search Engines
- Mark’s full career bio is available on LinkedIn
Major Areas of Genealogical Expertise:
- East & West Prussia, Pomerania, Posen, Silesia (pre-1948 formerly Eastern Germany, now largely parts of Poland, Russia, Lithuania)
- Shoah (Holocaust) Jewish Research
- Prussian Mennonites
- Swiss-Alsacian Mennonites-Amish
- New France (Quebec)
- Upstate New York & Vermont
- South Eastern Iowa
- Genealogy Supportive Technologies, Websites, etc.
- Name ‘morphing’- dealing with imprecise or inaccurate Names
- RootsWeb 2015, 2016, 2017 German-Prussia workshop- Parker (Colorado) LDS Family History Center
- 2nd Thursday German-Prussian-Polish Workshop- Parker (Colorado) LDS Family History Center
- Parker (Colorado) Genealogical Society, Guest Lecturer (Speaker)
- Parker (Colorado) LDS Family History Center, Guest Lecturer (Speaker)
- Castle Rock (Colorado) Genealogical Society, Guest Lecturer (Speaker)
- Colorado Genealogical Society, Guest Lecturer (Speaker)
- Genealogy Supportive Technologies, Websites (development and maintenance)
- Online Genealogy Tools (research, communication, networking, etc.)