That siren appears to be identical to the one in Edgerton, Kansas, at 38°45'38.2"N 95°01'11.0"W
It is inactive, but there is a post on here discussing about the siren, with close up photos on page 2:
viewtopic.php?t=24821
I think it's interesting that how both the siren in the article and the one in Edgerton are located in Kansas, do you know the date of when this article was published?