Silcox, D. R. (2013). The Eiler, Wenrich, Oswald, and Delong families: With associated families of Bubeck, Killian, Freeman, Noecker, Unger, Schappell, Strouse, Wisner, Dewald, Nabholz, Schoeneman, and Luckenbill of Schuylkill County and Berks County, Pennsylvania. Shillington, Pa.: David R. Silcox.

Silcox, David R. The Eiler, Wenrich, Oswald, and Delong Families: With Associated Families of Bubeck, Killian, Freeman, Noecker, Unger, Schappell, Strouse, Wisner, Dewald, Nabholz, Schoeneman, and Luckenbill of Schuylkill County and Berks County, Pennsylvania. Shillington, Pa.: David R. Silcox, 2013.

Silcox, David R. The Eiler, Wenrich, Oswald, and Delong Families: With Associated Families of Bubeck, Killian, Freeman, Noecker, Unger, Schappell, Strouse, Wisner, Dewald, Nabholz, Schoeneman, and Luckenbill of Schuylkill County and Berks County, Pennsylvania. Shillington, Pa.: David R. Silcox, 2013.