Oskaloosa has not one, but two Wright designed Usonian homes.
The Carroll Alsop House, built in 1948 is pictured above and below (click on photos for larger images). The brick home has cypress trim and a red asphalt shingled roof.
Also known as the Mitchell House, it has three bedrooms, one bath, a step-down livingroom, and a fireplace. It's an in-line design, but the master bedroom is angled 45 degrees.
Carrol Alsop was a women's clothier and department store owner in Oskaloosa.
Now when you think of "Osky" (the foreshortened moniker used by locals), think of Frank Lloyd Wright.