From the record
“The Benson Water Tower was a water tower located on Clayton Street in Benson, Illinois. The tower was built in 1891, in response to several serious fires in Benson; it supplied the village with water until 1985.”
Wikipedia article Benson Water Tower, CC BY-SA 4.0.
One of 8 National Register listings published here for Woodford County · listed in 1987 · category: Structure · built in 1891.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service