I think you have been tracing the same Shroll branch that I am researching. So far I have come up with this, briefly:
Joannes Shroll, 1723, Bayern, Germany-1781, York, PA
Christian Shroll, before 1759, PA
John (Johannes Shroll), 1780, York, PA-1835, Crawford Co, OH
John, abt 1816, Cumberland Co, PA
Charles, 1849, Crawford Co, OH-1929, Goshen, Elkhart Co, IN
Metta, 1876, Wyandotte Co, OH - 1955, Lapeer Co, MI
Metta Shroll was my grandmother.She married Harry Omar Rybolt. I know that her father was Charles Shroll, but I am not sure that I am on the right track with the rest of the ancestors. I hope that you can confirm what I have or else set me straight.