Not sure if this will help.My Great grandfather, Johannes(John) Pulfer(Pulver) had a brother named Rudolph (Rudolf). According to my info.They were born in/around the German-speaking region of (Reichenbach) Switz.Their parents were Rudolph Pulfer & Susanna Katharina Von Kanel. Younger Rudolf married Anna in late 1881.(according to my notes), Rudolf (now Rudolph)& Anna arrived on east coast Spring of 1882 and proceeded into Penn. I have a bit more info. Just let me know.