From the record
“The Arcola Carnegie Public Library is a Carnegie library located at 407 E. The library was built in 1905 through a $10,000 grant from the Carnegie Foundation.”
Wikipedia article Arcola Carnegie Public Library, CC BY-SA 4.0.
One of 3 National Register listings published here for Douglas County · listed in 2002 · category: Building · built in 1905.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service