Title: Isaac Hecker and the First Vatican Council
Subjects: Vatican Council (1st : 1869-1870), Vatican Council (1st : 1869-1870 : Basilica di San Pietro in Vaticano), Vatican Council (1st : 1869-1870 : Basilica di San Pietro in Vaticano) http://id.loc.gov/authorities/names/n50000581
People: Isaac Thomas Hecker (1819-1888)