J. N. Larned, History for ready reference, Volume 5… (1895)
“ A severe persecution began to make itself felt against his followers, the Mennonites; and, having heard accounts of the colony established in the New World by William Penn, they began to emigrate to Pennsylvania near the close of the 17th century. ... Successive immigrations from Holland, Switzerland, Germany, and, in the last twenty-five years, from southern Russia, have resulted in placing the great majority of Mennonites in the world on American soil, in the United States and Canada." H. K. Carroll, The Religious Forces of the United States, chapter 28. ”
