Brett Heinzman


Biography 1-3-17

Mr. Brett Heinzman received his Bachelor’s Degree in English from Eastern Illinois University. He followed up receiving his Master’s Degree in School Administration from Lindenwood, Missouri University. After spending 10 years as a public school English teacher, followed by three years as a public high school principal, Mr. Heinzman and his family relocated back home to southern Illinois having grown up in Vandalia.

Mr. Heinzman and his high school sweetheart, Dr. Monica Heinzman have been married for 26 years. They have four children Eric, (24), Lauren (18), Olivia (15), and Claire (13) all who have all attended St. Mary School. Mr. Heinzman has served as principal at St. Mary Catholic School since 2005. Mr. Heinzman and his family are active members of the parish community.

Faith and family are the hallmarks that Mr. Heinzman follows. In his spare time Mr. Heinzman enjoys reading Historical Fiction, playing golf, cheering on the Dallas Cowboys, and spending time with friends and family.

Mr. Heinzman believes it’s a privilege to lead the students and dedicated staff at St. Mary School throughout their spiritual and educational development. Mr. Heinzman instills the importance of virtues and creating an environment where all students feel loved, safe, and welcome.



Mr. Heinzman may be reached via email at or phone (618) 242-5353