"National Register Information System".
National Register of Historic Places.
National Park Service.
July 9, 2010.

Sam Erickson. "
Howes Building".
National Park Service.
Retrieved 2017-11-18.
with photos
"National Register Information System". National Register of Historic Places. National Park Service. July 9, 2010.
Sam Erickson. "Howes Building". National Park Service. Retrieved 2017-11-18. with photos
Howes Building