Jackson Sanatorium, Dansville, NY (Polk's Medical Register, 1898)

A page reproduction from the 1898 edition of Polk's Medical Register and Directory of North America, a professional national medical directory, showing a period illustration and listing for the Jackson Sanatorium, Dansville, NY, fetched via its Wikimedia Commons file page on 2026-08-04. Commons tags the file public domain in the United States (PD-1923: published before 1 January 1928). The underlying scan originates from a McGill University Library copy digitized on the Internet Archive; McGill and archive.org are not among this archive's four rights-checked archives, so the Wikimedia Commons file page itself, rather than the McGill/Internet Archive copy, is used here as the direct resolvable holding record.