Try the following information supposedly compiled by Rev. Dr. Wm. J. Hinke of the Historical Society of the Evangelical and Reformed Church at Franklin and Marshall College

Gerhard Etter b. 17 Jan 1718, Oeber Rieth, Bern, Canton, Switzerland
m. Catharina Banga b. 26 Oct 1717

They came to America before 1750
and settled in/near Palmyra, PA and a Moravian Colony in what is now Lebanon Co. PA. This colony was named Quetopehilla.

Their Children were

Elizabeth b. 1744
Peter b 1745
Anna Maria b. 1746
John b. 1748
Daniel b. 1750
Samuel b. 2 Jan 1759 d. 14 Jan 1840

This work continues

"Samuel and his son, Samuel were both United Brethren ministers. Samuel stayed in Pennsylvania but the other children moved to Wythe County, Va."

I am the 4th great grandson of the above Daniel Etter. The Etter Family history that I have doesn't have anything on this branch. The above Daniel Etter had a son Samuel b. 1789 with no other detail in my information. Daniel Etter b. 1750 moved to Wythe Co. VA. His son Daniel, my 3rd great grandather was born in Wythe Co. in 1791, not sure about his brother Samuel.

My guess based on above, that your ancestor would be Samuel, son of Gerhard that stayed in PA.

Good luck!