added places, railroads in Iowa using USGS 3DEP, USGS Topo, Bing imagery, Wikipedia, other sources as cited

added railroads, places in Iowa using USGS Topo, Bing, Wikipedia, other sources as cited

added places, extended railroad in Iowa using USGS Topo, Bing, Wikipedia for dates

extended US Route 59, added MN State Highway 79

reduced anachronisms in arbitrary start/end dates

added Wikidata to Courtland Township, MI chronology relation

Created chronology relations for Courtland and Oakfield Townships, Michigan

extended railroad, added Heart Prairie, WI, chronology relation for Elkhorn, WI

added Tunnel City, Tomah, Oakdale Wisconsin using USGS Topo, USPS, State of WI for dates

added places, highways in Wisconsin using USGS Topographic Maps, Wikipedia, other sources as specified

added Pittsville and Vesper, WI and railroad branches to each using USGS Topo, Wikipedia and other sources as specified

created relation for area of Wisconsin River

fixed Wisconsin River area relation

added railroads, places in WI using USGS Topo, Bing imagery and USGS 3DEP

added railroads, places near Milwaukee, WI using USGS Topo, Bing imagery and USGS 3DEP

added Badger Ammunition Plant, places and chronologies for places in Wisconsin

added Marion, Wisconsin

added Amherst and Amherst Junction, Wisconsin

added places, railroads in Wisconsin using USGS 3DEP, USGS Topo, Bing imagery, Wikipedia

added railroads, section of Lincoln Highway using USGS 3DEP, Bing, USGS Topo