I researched the Madtes family crest in 1990 and this is what I found. The name Madtes appears in the Nürnberg, Germany city records in 1497. For all those who remember the stories about the Madtes' coming from Lithuania, it looks like the Madtes' left Germany then perhaps went back to Northern Germany Prussia) before coming America. I can also find the family name in France.
I can trace the Snyder family back to Georg Schneider born in 1541. Contact me for more information.