
Loomis Observatory
Oldest Observatory outside of the original 13 states, and third oldest on the North American continent.
The Hudson Library & Historical Society maintains the only comprehensive manuscript, genealogy, and artifact collection that documents Hudson, Ohio’s founding, history, and ongoing activities and functions.
One of the nation’s largest research collections on abolitionist John Brown and the Brown family.
Extensive manuscript holdings, newspapers, books, photographs, and artifacts documenting Hudson.
Vast collection of genealogy materials with an emphasis on sources for the Eastern U.S. and especially Ohio.
Oldest Observatory outside of the original 13 states, and third oldest on the North American continent.
December 1941-August 15, 1945
Pioneer in Cosmic Ray Research
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