Information about the University of Illinois Observatory
The Instrument collection: http://uiobservatory.omeka.net/
Brief overview of the history from Wikipedia: http://en.wikipedia.org/wiki/University_of_Illinois_Observatory
National Historic Landmark nomination form, 2001, National Park Service, http://www.cr.nps.gov/history/online_books/butowsky5/astro4h.htm
Article “Illinois-Where astronomical photometry grew up,” by Barry Beaman and Michael Svec, published in the Journal of the American Association of Variable Star Observers, 2012. http://www.aavso.org/ejaavso173
University of Illinois Astronomical Society: http://uias.astro.illinois.edu
Resources on Historic Telescopes and Instrument Collections
The Digital Library for Physics and Astronomy – contains articles by Myers, Stebbins and Baker published in the Astrophysical Journal, Popular Astronomy, and the Astronomical Journal. Search at http://adswww.harvard.edu/.
The Antique Telescope Society: http://webari.com/oldscope/
“Value of vintage observatories and historic telescopes in communicating astronomy with the public” by Trudy E. Bell http://www.capjournal.org/issues/09/09_30.pdf
Lick Observatory Historical Collections Project : http://collections.ucolick.org/archives_on_line/
Lick Observatory digital archive: http://digitalcollections.ucsc.edu/cdm/
Smithsonian Institute, scientific trade catalogs 1800-1914 http://www.sil.si.edu/DigitalCollections/Trade-Literature/Scientific-instruments/intro-turner.htm
University of Chicago archival photography: http://photofiles.lib.uchicago.edu/
Instruments for Natural Philosophy: http://physics.kenyon.edu/EarlyApparatus/index.html
Ladd Observatory Facebook: https://www.facebook.com/LaddObs
Cincinnati Observatory: https://www.facebook.com/CincinnatiObservatoryCenter