Cast Iron Architecture in America: The Significance of James Bogardus. By Margot Gayle and Carol Gayle (W.W. Norton, 1998).
Badger’s Illustrated Catalogue of Cast-Iron Architecture. By Daniel D. Badger (Dover, 1982, reprint of 1865 edition).
SoHo-Cast Iron Historic District Designation Report. New York City Landmarks Preservation Commission, 1973.
Guide to New York City Landmarks. By the New York City Landmarks Preservation Commission (Wiley, 2008).
New York City Landmarks Preservation Commission Website, which includes more recent and other select designation reports.
Neighborhood Preservation Center’s New York City Landmarks Preservation Commission Designation Reports Database, which includes all designation reports.
Architectural Heritage Center - Cast Iron in Portland, Oregon: http://cipdx.visitahc.org/