Father Peter Snieg became pastor of St. Thomas Aquinas  Parish, and Dean of the Freeport Deanery on June 16th 2021. 

Born in Chicago, Father Snieg is on loan to the Rockford Diocese from the Archdiocese of Chicago.   He is a graduate of St. Mary of the Lake and Mundelein Seminary in Mundelein, and he earned his Licentiate of Sacred Theology (STL) there in 1993.  He was ordained to the priesthood on May 22, 1993.  From 1994-1995, he was a parochial vicar at St. Priscilla Parish while teaching at Quigley Preparatory High School Seminary.  From 1995-1998, he taught religion and did recruiting at Quigley.  He became the rector of Quigley in 1999, and was rector and president there until the school closed in 2007.  He then was appointed to St. Joseph College Seminary at Loyola University as vice rector, dean of formaiton and director of the Quigley Scholars Program, an outreach program for high school students.
Father Snieg became the eighth rector-president of St. Joseph College Seminary in July 2010.  He later was asked by Cardinal Francis George to serve as Moderator of the Curia.  He reurned to St. Joseph as rector in 2016 at the request of Cardinal Blase Cupich.  The college later closed in part due to low enrollment.
Father Snieg came to the Rockford Diocese in 2019 and has served as administrator at the East Dubuque and Menominee parishes to the present.