You have raised an interesting and confusing issue regarding Johan Michael Grauel from Germany who settled in (what is now) Berks Co. Pennsylvania. In the first edition of my aunt's history of the Crowl family, she described Johan Michael Grauel, born about 1701, based on his age when he arrived in the colonies (Philadelphia) in August, 1733. She lists his death as 10-1778. There was no information on his first wife, but his second wife is listed as Anna Maria ___?. The name Conrad appears as one of their sons. In my aunt's second edition, it becomes evident that two Johan Michael Grauels came to the colonies, the one mentioned above (b. 1701) and one born about 1682-1683 in Heuchelheim Germany who arrived in Penn. on the ship Harle in 1736 (age 53). His wife is listed as Sibila Elisabeth Fulman Grauel. My aunt surmises that Johan Michael Grauel (b. 1701) was the son of Johan Michael Grauel (b. 1682-3) who came to the colonies first and later sent for his father: "since almost all fathers had at one time a son named after them, and none by Sibila, it is thought that the Johan Michael of 1733 entry was his son by his first marriage. This proof is still being worked on as of 1989."
Thus, it is likely that we are talking about the same family line, but the proof of the connection is still lacking. What information do you have on the children and/or siblings of Johan Michael Grauel (b. 1701)?