* [http://www.smith.edu/libraries/libs/rarebook/exhibitions/catherwood/index.htm Drawing From the Past: Maya Antiquity Through the Eyes of Frederick Catherwood] {{Webarchive|url=https://web.archive.org/web/20081008070952/http://www.smith.edu/libraries/libs/rarebook/exhibitions/catherwood/index.htm |date= 8. oktober 2008 }}, Smith College Libraries' onlineudstilling af Catherwoods litografier fra ''Views of Ancient Monuments''
* [http://www.casa-catherwood.com/catherwoodinenglish.html Frederick Catherwood's Lithographs] {{Webarchive|url=https://web.archive.org/web/20081223115429/http://www.casa-catherwood.com/catherwoodinenglish.html |date=23. december 2008 }}, onlinereproduktioner af en permanent udstilling i Casa Frederick Catherwood, Mérida, Yucatán
* [http://academic.reed.edu/uxmal/galleries/thumbnails/drawings/Drawings-41Stephens.htm Reed College: 1841 Stephens] {{Webarchive|url=https://web.archive.org/web/20081013135501/http://academic.reed.edu/uxmal/galleries/thumbnails/drawings/Drawings-41Stephens.htm |date=13. oktober 2008 }} – tegninger fra Uxmal-ekspeditionen i ''Incidents of Travel in Central America, Chiapas, and Yucatan''
* [http://academic.reed.edu/uxmal/galleries/thumbnails/drawings/Drawings-Stephens.htm Reed College: 1843 Stephens and Catherwood] {{Webarchive|url=https://web.archive.org/web/20080828125848/http://academic.reed.edu/uxmal/galleries/thumbnails/drawings/Drawings-Stephens.htm |date=28. august 2008 }} – alle tegninger fra Uxmal, Kabah, Sayil og Labná i ''Incidents of Travel in Yucatan''
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