Apparently, there was once a convent near the Krakow Church. The convent (not the church?) was torn down. Upon researching this location, I discovered the Sts. Peter and Paul Catholic Church in Krakow, which as established in 1893. This may be the Krakow Church in question, as it is a Catholic Church and it would have been established early in the history of the community. I have not verified whether this is true or not yet, however.
According to reports, on the night of a full moon, one can still see the phantasm of the convent, along with a "figure hanging and swaying".
Churches and convents are common locations where paranormal activity is reported to take place.
Shadowlands Haunted Places Index
Krakow NE Nebraska United States