"The Diocese of Chicago was 20 years old when Mother Alfred Moes arrived in Joliet to begin teaching at
St. John School. Bishop Duggan had already become very sick and unable to manage the Diocese.
In November 1869, Bishop Thomas Foley took over the leadership of the troubled Diocese. As if difficulties were not sufficient, the Great Chicago Fire of October 1871 devoured vital parts of the city, including many churches, schools and the seminary.