[1] The parish was established in 1848, the same year in which the community was platted, and construction was completed in 1850.

[3] St. John's is one of many churches in western Ohio that historically has been served by the Society of the Precious Blood.

St. John retains its historic brick and stucco exterior, and its frescoed ceiling has been recognized as a leading aspect of its architecture.

[4] Throughout the Archdiocese of Cincinnati, there is only one church older than St. John's that survives without significant structural changes.

[3] St. John's and its parish hall were listed on the National Register of Historic Places in 1979, along with St. Augustine's and many other churches related to the Society of the Precious Blood in western Ohio.