Gass History of Manitowoc Gass, Otto History of the city of Manitowoc, Wisconsin, its pioneers and early industries prior to 1850. Appleton, WI: Post Publishing Co., 1908 Call number: MTWC 977.567 GASS http://digicoll.library.wisc.edu/cgi-bin/WI/WI-idx?id=WI.manGassHistory