Fritchman is a real surname. It has varied in spelling over the centuries. It looks to me like you've found one of the original immigrants. (Did your information come from the LDS database?) I'm one of hundreds of descendants of Hans Adam and Catherina in the U.S. and I've seen about a dozen variations on the spelling in this country alone. If you find that your relative is also a descendant, send them my way. Genealogy is my hobby and chances are pretty good that I can help them to determine which line they belong to.