This list of communicants from 1867 is shorter than some of the other lists at the Tioga Evangelical Church in Tioga, Illinois [now Bethany United Church of Christ]. Number 9 is my great-great-grandmother. Number 6, "Vater Trautfelder," probably is John George Trautvetter, as three of his sons also lived in the vicinity and at the time of this were in their late twenties. John George had two brothers in the area as well who could have attended the same church, but those siblings had no children, so it seems likely that the reference to "vater" would be to the one with children.
I really need to review the material I copied when I was at the Family History Library. I made copies of stuff and think I promptly forgot I even made the copies.