Explore Chicago Collections
https://explore.chicagocollections.org/records/?browse-topics=yes&f1-types=Archival+Collections&f2-types=Archival+Collections&f3-institutions=University+of+Illinois+at+Chicago&f4-topics=Communities%3A%3ARussian+Orthodox+Church+members&f5-institutions=University+of+Illinois+at+Chicago&f6-topics=Communities%3A%3ARussians