"Encyclopedia Dubuque is the online authority for all things Dubuque, written by the people who know the city best.”
Marshall Cohen—researcher and producer, CNN
Affiliated with the Local History Network of the State Historical Society of Iowa, and the Iowa Museum Association.
The concrete blocks were advertised as being warmer in winter and cooler in summer because of the hollow space in the blocks. Cement porches were said to always be in good condition with no "rotting, vermin, dampness, warping or patching." Houses built with the material were said to offer at least 25% in savings in cost of fire insurance.
"Dubuque Board of Realtors Turns 100," Telegraph Herald, June 2, 2013,