https://collectionslowellobservatory.omeka.net/exhibits/show/historic-buildings/item/1055
Slipher Building · Lowell Observatory Archives
Papers and artifacts regarding astronomy and Lowell Observatory
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https://collectionslowellobservatory.omeka.net/items/show/984
V. M. Slipher to Edwin Hubble, December 10, 1927, on Committee on Nebulae and Star Cluster work and...
Papers and artifacts regarding astronomy and Lowell Observatory
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https://www.publicjail.com/travis-slipher/
Travis Slipher – Public Jail
travisslipherpublicjail