Home › Authors › John Martin Boltzius 👤 John Martin Boltzius 2 books Books by John Martin Boltzius Detailed Reports on the Salzbu Detailed Reports on the Salzburger Emigrants Who Settled in America V. 5; 1738 1982 Detailed Reports on the Salzbu Detailed Reports on the Salzburger Emigrants Who Settled in America V. 6; 1739 1982