From the record
“Alleman Farm Historic District is a nationally recognized historic district located southeast of Slater in rural Polk County, Iowa, United States. It was listed on the National Register of Historic Places in 2013.”
Wikipedia article Richard L. and Verda M. Alleman Farm Historic District, CC BY-SA 4.0.
One of 208 National Register listings published here for Polk County · listed in 2015 · category: District.
Sources: the Wikipedia article · the National Register database, National Park Service
