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​Welcome to the website for the Office of Priestly Vocations of the Diocese of Grand Rapids, MI. This year twenty-five men from our diocese will be in seminary formation programs in preparation for ordination, seven of whom are new to formation. Thirteen of these men are at St. John Vianney College Seminary and twelve are at USML/Mundelein Seminary.

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360 Division Ave. S. Grand Rapids, MI 49503

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Seminarian Jacob Hahn
Theology II 
Our Lady of the Lake 
Holland, MI


Nicholas and Lora Hahn


Josh, Ben, and Aleah Hahn


West Ottawa High School
Grand Valley State University
University of St. Mary of the Lake – Mundelein Seminary


Jacob enjoys walking and hiking, woodworking, and singing.

Who inspired me to be a priest?

Fr. Michael Cilibraise helped inspire me to be a priest through some of his homilies, his caring for his church, and his openness to talk and guide me.

Why do I want to become a priest?

To be a spiritual father to people, to love them and to serve them.

What do I love most about seminary?

The variety of things to do.  There are many activities that we can participate in.  The liturgies are varied and show us different ways to pray, and there is a fairly diverse culture.

What am I most grateful for?

My fellow Diocesan Brothers and their willingness to answer any questions I might have about professors, classes, and activities.

Write to Jacob at:
Mundelein Seminary
1000 E. Maple Ave.
Mundelein, IL  60060
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