20211022T1000-MUNDELEIN-100TH-FORMING-PRIESTS-1510699.JPG

Guests including Little Sisters of the Poor sing during the entrance procession of Mass in the Chapel of the Immaculate Conception at Mundelein Seminary Oct. 17, 2021. (CNS photo/Karen Callaway, Chicago Catholic)
Guests including Little Sisters of the Poor sing during the entrance procession of Mass in the Chapel of the Immaculate Conception at Mundelein Seminary Oct. 17, 2021. (CNS photo/Karen Callaway, Chicago Catholic)