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School Leadership

Garrett Mandeville

Garrett Mandeville

Main Campus Director of Middle School

Mobile: 414-507-4825


  • B.A. Psychology and Spanish, University of Notre Dame
  • M.Ed, University of Notre Dame

How did you connect to St. Marcus?

The Holy Spirit! I heard about St. Marcus through previous organizations focusing on Parental Choice and faith-based education. After visiting the campus, learning more about the mission and getting to know some of the amazing team, I was hooked!

What do you love about what you do?

I love helping people to reach their God-given potential! I love getting to build relationships, community and culture. Most of all, I love helping young people better understand who they and what it means to be created in the image and likeness of God.

If you had a Bible passage/quote for your life and ministry what would it be?

Rejoice in the Lord always. I will say it again: Rejoice! Let your gentleness be evident to all. The Lord is near. Do not be anxious about anything, but in every situation, by prayer and petition, with thanksgiving, present your requests to God. And the peace of God, which transcends all understanding, will guard your hearts and your minds in Christ Jesus.

“When I have free time, you will find me…”

Going for a run, exploring Milwaukee, or cheering for the Notre Dame Fighting Irish!

What’s your favorite vacation spot?

Patagonia! Now that I am back in the states, I love being near water or mountains.

What’s one fun fact about you?

I was once bitten by a penguin on an island off the southern coast of South America.

Is there anything else you would like to share?

I am so excited to be a part of St. Marcus and the Milwaukee community!