Premise: The Carnegie Public Library in Havre, Montana is a historic Carnegie library built in 1914 which was listed on the National Register of Historic Places in 1986. It is in the Classical revival style. It was also known as the Havre Public Library and later as the Old Carnegie Library. In 2017 it is a former library building and is occupied by the Old Library Gallery.
Hypothesis: The Carnegie Public Library is the oldest library in Montana.