Parish Leadership

See below for current boards and members. Anyone interested in more information or joining a committee can email the parish at This email address is being protected from spambots. You need JavaScript enabled to view it..

  • Fred Heimmermann, Chairperson

    Cindy Spielbauer, Vice - Chairperson

    Meets 2nd Tuesday of the month in the Good Shepherd Room @ 7 PM

    Current Members

    • Dave Reichenbacher, Secretary
    • Scott Sitzberger
    • Bob Derks
    • Phil Schmidt, Trustee
    • Steve Betchner
    • Gina Zilisch
    • Craig Taylor


  • Diane Ernst, Chairperson

    Meets 4th Tuesday of the month in the Good Shepherd Room @ 7 PM

    Current Members

    • Vicki Schmidt
    • Aaron Geier
    • David Hahn
    • Kip Wenninger
    • Chris Van Asten
  • Todd Moore, Chairperson

    Meets 2nd Tuesday of the month in the School Office @ 7 PM

    Current members:

    • Jeff Herman
    • John Griesbach
    • Susan Oestreicher
    • Mike Krausert
    • Cathy Wenninger
    • Tiffany McHugh

    For more information, please contact Deb Fuller at This email address is being protected from spambots. You need JavaScript enabled to view it.

  • Parish Trustees:  Diane Ernst & Phil Schmidt

    Building & Grounds:  Kip Zilisch

    Parent-Teacher Organization:  Heidi Specht

    Parish Hospitality Team: Mary Taylor

    Rosary Makers: Denise Griesbach

    Social Concerns: Kristin Killian

    Respect Life: Julie Holschuh

    Prayer Shawl:  Mary Preston

Our Parish Heritage

The first Catholic settlers came to the Greenville area around 1850. Being of strong faith, they journeyed over 15 miles,

often on foot, to attend Mass and receive the sacraments at St. John Nepomucene Parish in Little Chute, which was the nearest Catholic church. As the number of Catholic families in the area increased, a priest came to Greenville on horseback, ministering to the needs of the faithful.

The priest carried the articles necessary for the celebration of Holy Mass tied up in a grain bag, and laid across the back of his horse. The first Mass said in the Greenville area was during the summer of 1855, in the home of one of the settlers.

At that time there were about 50 Catholic families in the Greenville area, and this gave birth to the desire to establish a parish church in Greenville. Four acres of land were donated, and efforts were begun to raise necessary funds. Due to hardships, many years passed before there was enough money to build a church. Construction was begun in 1868, and on March 29, 1869, Bishop Joseph Melcher of Green Bay solemnly consecrated and dedicated the church in Greenville under the title of “Immaculate Conception of the Blessed Virgin Mary”. The first pastor was Rev. Andrew Seubert. Not having a permanent residence, he boarded at the home of a parishioner. Subsequently, Father Seubert’s first task was to build a rectory at the cost of $785.

The church bell was purchased in 1872, weighing 675 lbs. A blessing ceremony was held in February of 1873. Even non-Catholics in the area were so impressed by the sound of the bell that they contributed to its cost, which was $338. This original bell was re-installed in the steeple of our new church in 1988, and still calls the faithful of Greenville to prayer.

Addition of the School

In 1879 the pastor of St. Mary, a zealous, young priest, Father Clement Lau, advocated the establishment of a Catholic school. Lacking funds to build a school, classes were taught in the church sacristy for eight years. In 1887 a one-room school was erected, and a Sister’s house was built. The first school was staffed by the School Sisters of St. Francis from Milwaukee. Each Sister earned a yearly salary of $200. Shortly after 1900, the school was enlarged to a two-classroom building, with an addition of a second story used as a parish hall. The School Sisters of Notre Dame came in 1914 to teach in the school. Students traveled to school on foot, horseback, buggy, or sleigh. Stables behind the school housed the horses during the school day, providing shelter, food, and water. Older parishioners relate stories of recess time that was spent playing hide-and-go-seek in and around the horse stalls. As was typical in those days, bathroom facilities were outdoors, but indoor bathrooms were finally added to the school in 1951.

old church 1905

Here is an image of the church from 1905 with Fr. Garthaus. The sacred heart statue above the main altar and the statue of the Blessed Mother above the altar on the left have survived and are still watching over the parish in the new church.

St. Mary of the Immaculate Conception is the only Catholic Church in the Greenville area and is an integral part of this rapidly expanding area of east central Wisconsin.

Our Name

The name of our parish is actually St. Mary of the Immaculate Conception. It refers to Mary’s conception in the womb of Saint Anne, not the conception of Jesus! Our church was given the name near the time of the dogmatic proclamation of the Immaculate Conception of Mary. The Holy Church declared the Biblical truth of the Immaculate Conception of Mary to be held definitely by all the faithful in 1854. Our parish received this name a few years later. We are one of the earliest to receive this beautiful name. We are known as Immaculate Conception Parish by the Federal Government and as "St. Mary's" by those who affectionately call us home.

Staff Contacts

The staff of St. Mary's is here to serve you. 

Main number:  920-757-6555

Staff Member



Contact Regarding

Fr. Michael Warden

This email address is being protected from spambots. You need JavaScript enabled to view it. 




Pastoral Issues, Sacraments, Marriage

Dcn. Dave DeYoung    This email address is being protected from spambots. You need JavaScript enabled to view it.


Deacon/Pastoral Associate

Baptism, Marriage Prep, Becoming Catholic, Pastoral Issues

Carol Frahm          This email address is being protected from spambots. You need JavaScript enabled to view it.


Director of Parish Activities

Pastoral Care & Social Service Outreach, Liaison to Parish Organizations

Tammy Krueger  This email address is being protected from spambots. You need JavaScript enabled to view it.


Parish Secretary

Prayer Chain, Mass Intentions, Bulletin, Announcements

 St. Mary's School


Deb Fuller-Principal

School Academics, Athletics, Registration

 St. Mary's Faith Formation

207, 237

Luke Gietman- Director of Rel. Education

Barbara Tate-Elem. Coord of Rel. Education

Religious Education, Sacramental Preparation, Joining the Catholic Faith, Catholic Questions

Meet Our Staff

Deacon Dave DeYoung ext. 201

Deacon David DeYoung is the deacon at St. Mary’s. He is the father of eight children. He has served as an ordained deacon for nearly twenty years.. He and his wife along are responsible for the marriage preparation of our engaged couples. Deacon DeYoung preaches the Gospel at Mass every fourth Sunday of the month. He is profoundly pro-life and active in outreach to the unborn, their families and those who have suffered the pain of abortion. His wife Carol serves on the Pastoral Council and is also actively pro-life.

Carol Frahm ext. 210

Carol spent her formative years on a farm in the Town of Greenville.  She graduated from St. Mary’s School (now Catholic Central) in Appleton, Xavier High School and Clarke College in Dubuque, IA.  She began her career as a newspaper reporter and has had managerial roles in finance and aging services for non-profits including the Salvation Army of the Fox Cities and Lutheran Social Services.  Carol – in concert with her five siblings - was blessed to be a caregiver for her parents in their 80s and 90s.  Carol has been an active participant in the music ministry in each of her parishes.  She likes words, photography, and cooking and is striving to become a better gardener and a more faith-filled and prayerful Catholic.  

Tammy Krueger ext. 205

Tammy Krueger hails from our sister town of Hortonville where she still resides. She has an Associates degree in Banking & Financial studies. She also has completed the Commissioned Minsitry Leadership Formation Program through the Diocese of Green Bay. Her areas of study were Church Management and Liturgy. Among her many duties, Tammy compiles the bulletin each week, tracks all sacramental records and tries to keep tabs on our pastor.

Joining St. Mary's


St. Mary's is here to bring Jesus Christ to His people and to bring His people to Him. Our parish is dedicated to serving Jesus Christ in sacrament, word and deed. We are an active parish grounded in the Eucharist and immersed in the Gospel.  We are guided by Scripture and Tradition and directed by the Magisterium of the Church. Through these means we teach, preach and hold the Gospel of Jesus Christ.

St. Mary's is a growing parish located just west of  Appleton, Wisconsin.  Our parish is young and on fire with the love of Jesus.  We welcome visitors, new parishioners, Catholics who have been away from the faith and those seeking a sense of community.

Our parish is a faith community of approximately 900 families. Our Catholic school has about 165 students.  Our Faith Formation program has roughly 400 students.

We at St. Mary's strive to live out our Catholic faith through worship, growth in faith and in action. We care for each other through prayer and service.   

Facility Assessment


stmary backgroundYour comments from the facility improvement presentation March 12 & 13

Fr. Peter's bulletin regarding the facility March 20.

March 13th Facility planning presentation.

Fr. Peter's bulletin regarding facility March 6th.

Fr. Peter's bulletin announcement regarding the facility discussion 2/14/2016.

Architect's presentation 2/9/2016

Parish Survey Results:

What we like about our parish.

What we dislike about our parish.

What we would change about our parish.

What we are proud of concerning our parish.

Other Comments.

Contact Us

N2385 Municipal Dr.
Greenville, WI 54942
(920) 757-6555

Office Hours

Monday - Thursday:  8:00 AM to 4:00 PM
Friday:  8:00 AM to 12:00 PM