The Belgian Roadside Chapels of the Door PeninsulaWilliam G. Laatsch, Charles F. Calkins · First published 2003Open the Tome
Belgian Culture Visible in Outdoor OvensCharles F. Calkins, William G. Laatsch · First published 1990Open the Tome
The Belgian Roadside Chapels of Wisconsin's Door PeninsulaWilliam G. Laatsch, Charles F. Calkins · First published 1986Open the Tome
The barn as an element in the cultural landscape of North AmericaCharles F. Calkins · First published 1979Open the Tome
The Belgian Outdoor Ovens of Northeastern WisconsinCharles F. Calkins, William G. Laatsch · First published 1979Open the Tome
Atlas of Minnesota occupancyRobert Harold Brown, Philip L Tideman, Charles F. Calkins · First published 1961 · Latest edition 1966Open the Tome
