- Pastor: Fr. Rich Andre, C.S.P., ext. 29 frrich@oldstmarys.com
- Associate Pastor: Fr. Dan Macalinao, C.S.P., ext. 20 frdan@oldstmarys.com
- Director of Liturgy and Music: Ace Gangoso, ext. 14 ace@oldstmarys.com
- Director of Lifelong Faith Formation: Elise Flick, ext. 26 elise@oldstmarys.com
- School Principal: April Greer, 312-386-1560, agreer@osmschool.com
- Business Manager: Dawn Burns, ext. 23 dawn@oldstmarys.com
- Facility & Parish Events Coordinator: Patti Murphy patti@oldstmarys.com
- Executive Assistant to the Pastor: Lauren Huelster, ext. 25 lauren@oldstmarys.com
- Maintenance: Lorena Villegas, Dennis Davis
- Receptionists: Vanesa Jackson, Mamie Smith, and Steven Torres
****************************************************
Senior Paulist In-Residence: Fr. Robert M. Cary, C.S.P. frbob@oldstmarys.com