My husband’s 2nd great-grandfather was Martin P. Pfeffer, who was born about 1840 in Szentandras, Moson, Hungary. The names of his father and mother are unknown at this time, so therefore I do not know if he had any siblings.
Martin married Rosalia Madl in Hungary. They had the following children: Mathias born 1860 and died before 1865; a daughter (name unknown) born 1863; and Mathias John born 1865. I have found no death records on either Martin or Rosalia, but I did not find any indication that they emigrated to the United States.
That is all the information I have on the Pfeffer family male line.