Peter Böhler was a bishop in the Moravian Church and one who influenced John Wesley very much.
Peter Bohler, a Pietist theology student from Frankfort, Germany, was the first man ordained by Count von Zinzendorf. Later he was appointed bishop in America where he founded many Moravian settlements in Pennsylvania. He was one of the first men in America to minister amongst the black slaves, teaching both theology and the basics of education that they would have otherwise been denied. He also served as a missionary among the Indians, and established a Moravian work in England.
I have uploaded a pdf copy for you to download of an older biography of Peter.