"Amish Population, 2018". Elizabethtown College, the Young Center for Anabaptist and Pietist Studies. Archived from the original on 2019-02-05. Retrieved 2019-05-25.
"Amish Population, 2018". Elizabethtown College, the Young Center for Anabaptist and Pietist Studies. Archived from the original on 2019-02-05. Retrieved 2019-05-25.