From the record
“The Kolker House is a historic building located in Guttenberg, Iowa, United States. The two-story brick structure was built about 1859 in what is known as the "Wide Gable Style," with the roof's ridge parallel to the street.”
Wikipedia article Kolker House, CC BY-SA 4.0.
One of 54 National Register listings published here for Clayton County · listed in 1984 · category: Building.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service


