I noticed you had two surnames I am searching:
Hornung was my grandfather's name his family immigrated to Pottsville in the mid-1800's. His great father was Johannes A Hornung, he had at least two brothers Michael and Henry as well as at least two sisters, Elizabeth (who married a Peter Meyer) and Margaret Pauline who married Joseph Reinhard. They attended St. John the Baptist Church in Pottsville.
I know your message is dated but if you are still on the lists I would love to hear from you if these names fit in to your line.