ZIM-1: (blueprint) Plat of Survey ... Town of Geneva, Kane County, IL, March 1921

original file name DSC_0004

ZIM-3: (blueprint) A Plat of Topo Survey for The Property of Mr. H.B. Zimmerman, Geneva, IL, October 1921

original file name DSC_0004

ZIM-2: A Plat of Topo Survey for The Property of Mr. H.B. Zimmerman, Geneva, IL, October 1921

original file name DSC_0004

Guide leaflet, geological science field trip, Wheaton area : DuPage and Kane Counties, Wheaton, Barrington, Elgin and Geneva quadrangles /

April 29, 1962.