I'm not sure if this belongs in this thread or not, but ...
Here is a link to a write-up on early PA, including Germantown, where Johan Jacob Sheetz is listed as one of the first purchasers of land in connection with the colonization of William Penn.: http://ftp.rootsweb.com/pub/usgenweb/pa/philadelphia/areahistory/watson0202.txt
This brings up several ponderings in my mind. The timeframe seems right to fit in with the early "Johan Sheets" mentioned in the book entitled "History and genealogy of the John Sheets family", written by Myrtle O. Sheets in 1940. However, the book seems vague where the above link has more details. For example the book does not mention "Francfort company", indicating these Germans were from Frankfort, Germany. And the number of acres of land bought don't match (612 in the book, and 428 in the above link). But then again, how many Johan Sheets/z could there be in connection with land originally purchased of Wm Penn at such an early date?
The book mentions that Johan came across the ocean from Holland with the 2nd colony of Wm. Penn in 1682. According to the link, the "patent execution" specifying the purchasers of the land was dated the 3rd of April, 1689. Does that mean these purchases took place in 1689? Or somewhere inbetween 1682 and 1689?
I questionned Barry Scheetz (from the Scheetz Family web pages site), who told me he had looked into this before in connection with the early Scheetz from Germantown at their site, and he determined that it is part of the Conrad "the paper maker"'s linage.