Explore Chicago Collections
https://explore.chicagocollections.org/records/?f1-names=Commandant+Eckenfelder&browse-names=yes&f2-neighborhoods=Hyde%20Park&f3-types=Archival%20Collections&f4-topics=Events%20%26%20Movements::World%20War%20I&f5-topics=Daily%20Life%20%26%20Identity::Cultures%20%26%20Communities