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About Us

Our History

The Diocese of St. Catherine of Siena started out as the Diocese of the Great Lakes under the International Old Catholic Churches, or what is today known as the Old Catholic Churches International.  The Diocese was officially formed in 2014 with the reception of then Fr. Kenneth J. Nelan as Vicar General.  The name was officially changed from Great Lakes to St. Catherine of Siena in 2015 in honor of the Dominicans that currently serve the Diocese.

Today there are 2 religious orders, 2 priests, 1 brother, and 2 individuals currently in discernment; as well as a few lay ministers.  Varied ministries reach out to people of different ethnic backgrounds. Both Sacred Wandering Pastoral Center and St. Dominic Parish celebrate Mass live as often as possible through the national Facebook page and Msgr. Nelan is continuing to develop a mental health ministry that reaches out to the disenfranchised and downtrodden.

Following in the footsteps of two brave Dominican Friars, the Diocese is growning from its humble roots as a missionary diocese to an important presence on the Wisconsin landscape. The Catholic Community of the Great Lakes continues to grow and flourish into the new millennium.

Our Pastors

Our Diocese is served by the Dominicans in the Order of Preachers, Old Catholic, as well as Diocesan and Franciscan servants.  Our Vicar General is accountable to the Presiding Bishop of the Old Catholic Churches International.  Please see “Our Communities” page for more information on how to contact our parishes.