Father Rob Butz
Father Rob ButzPastor of St. Mary Parish
Fr. Rob was ordained to the priesthood in May of 2000. Before coming to Nativity of Mary, Father has served at various parishes throughout the Diocese of Madison including St. Raphael Cathedral, Madison; St. Thomas Aquinas, Madison; Corpus Christi, Boscobel; St. Olaf, De Forest; and St. Joseph, East Bristol. Father is also the diocesan chaplain of the Knights of Columbus. He enjoys reading, traveling, hiking, and biking.
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Our Valuable Administrative Members

Mr. Steve Castrogiovanni
Mr. Steve CastrogiovanniPrincipal
I am extremely excited to be a part of this community. I received my bachelor’s degree in elementary education from National-Louis University in Evanston, IL and my master’s degree in educational leadership from Cardinal Stritch University in Milwaukee. Catholic education has been a part of my life for the past 16years. I love working here at St. Mary School. The loving family atmosphere and high academic standards provide an environment that is conducive to learning and growing closer to Christ.
Mrs. Sue Vodak
Mrs. Sue VodakSecretary
I have been the school secretary at St. Mary School for over 35 years. My husband and I are members of St. Mary Parish and both of our daughters are graduates of the school. I have had the pleasure of working with great priests, principals, teachers, parents and students. In my spare time I enjoy spending time with my grandchildren.
Mrs. Sue Dickman
Mrs. Sue DickmanSecretary
Having lived in South Africa most of my life, I moved to Janesville with my husband, Alan, and daughter, Caitlyn, in 2005. Caitlyn and my son, Alistair, are both currently at St. Mary’s School. I have a Bachelor’s Degree in Psychology and Journalism, but have been a stay-at-home mom for the past ten years prior to working in the St. Mary’s School office. St. Mary’s has always been such a welcoming place for our family and I am excited to be a part of the wonderful staff here! In my spare time, I can be found at various kids’ sporting activities, arranging and making photo books, and cooking.

Our Valuable Teachers

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Mrs. Casie Behm
Mrs. Casie BehmPre-K 3 Teacher
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Mrs. Kate Trace
Mrs. Kate TracePre-K Teacher
Growing up in Lake Geneva, I attended St. Francis De Sales from Pre-K to 8th grade. I loved my catholic school experience! The building created a family and it always felt like home. Following 8th grade, I then attended Badger High School for 4 years and moved on to UW-Milwaukee for my college degree in Early Childhood Education.
Mrs. Lynn Hale
Mrs. Lynn HalePre-K 3 Teacher Aide
I am originally from Chicago. My family and I moved due to a job change for my Husband in March 2014. In January 2015, I started as the Afternoon and After School Supervisor. Then in August 2016, I became the Pre-K 3 Aide. I love working with the little ones and watching them learn! On my off time, I enjoy spending time with my Husband and Family. I have two little girls, ages 10 and 8 and we all love finding new adventures in Wisconsin!
Ms. Lindsey Maslonka
Ms. Lindsey MaslonkaPre-K Teacher Aide and Extended Care Supervisor
I am so happy to be a part of St. Mary’s Family and Faith based school. I have my Associates Degree in Early Childhood Development. I attended the University of Rock County College and Blackhawk Technical College. I am the mother of three kids, who are ages 11, 15, and 21. I love working in the Pre-K room and Extended Care!
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Mrs. Karen Erlien
Mrs. Karen ErlienKindergarten Teacher
I have been the kindergarten teacher at St. Mary’s for the past seven years. I graduated in 2009 with a B.S.E. and I am licensed to teacher both regular education and special education. Before becoming a teacher, I worked 10 years as a classroom assistant helping students with special challenges. Outside the classroom, I enjoy spending time hiking, fishing, and playing games with my family.
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Mrs. Christy Olson
Mrs. Christy Olson1st Grade Teacher
I have enjoyed teaching the learning basics to first graders for over 20 years. In addition to teaching at Saint Mary’s, I have also experienced Saint Mary’s as parent, having both of my children attend Saint Mary’s Pre-K through 8th grade.  Outside of the classroom, I enjoy spending time with my husband, two children, and several pets. I keep busy reading, crafting, gardening, and attending my children’s sporting events.
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Mrs. Sue Venable
Mrs. Sue Venable2nd Grade Teacher
Susan Venable is the Second Grade teacher at St. Mary’s School since 2006. She is a graduate of U.W. Whitewater with degrees in Elementary Ed., Special Ed., and Business Administration. She is the Owner/Operator of Venable Farms, Inc., a beef and cash crop farm east of Janesville, WI. Susan is the proud mother of her adult children Nick, Teddy, and Sarah. She is now the proud grandmother of three grandchildren!
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Mrs. Abbie Statz
Mrs. Abbie Statz3rd Grade Teacher
After graduating from UW-Madison in 2005, I began teaching in 2006.  I joined the St. Mary School staff in 2011 and absolutely love teaching 3rd Grade!  While I enjoy every subject area, I have to admit that my favorites are Math and Science!
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Mrs. Renee Gilmore
Mrs. Renee Gilmore4th Grade Teacher
My name is Renee Gilmore and I am currently the 4Th Grade teacher at St. Mary School. I have enjoyed being a part of this wonderful school for more than 20 years, beginning with my four adult children all graduating from SMS, and then working in the classrooms since 2006. I like to spend my spare time reading, gardening, and being outdoors.
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Ms. Rebecca Calvagna
Ms. Rebecca Calvagna5th Grade Teacher
I was born in Rockford, Illinois and graduated from UW-Whitewater with a degree in Elementary Education and a minor in mathematics. Prior to teaching at St. Mary’s I completed my student teaching in Beloit and worked at a Summer Camp in Rockford over this last summer.  I am so excited to teach here at St. Mary’s and look forward to a wonderful school year!
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Ms. Stephany Maddock
Ms. Stephany MaddockMiddle School Science & Religion Teacher
I am new to St. Mary School this year. I am teaching middle school science and religion. I grew up and live in Rockford, IL. I attended St. Bernadette School and Boylan Catholic High School. I loved attending Catholic school and wearing a uniform! After graduation, I attended Rock Valley Community College while I decided on a major. I received my Bachelor Degree in Elementary Education with a minor in science from University of Wisconsin-Whitewater in 2015.
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Mrs. Alissa Pryne
Mrs. Alissa PryneMiddle School Math & Social Studies Teacher
I attended UW-Whitewater, where I received my Bachelors Degree in Education. I have spent my entire teaching career at Beloit Memorial High School. I started as a Special Education Teacher and eventually accepted a position as a Math Teacher. My husband, Josh and I have three daughters, Paige, Kenedi and Oakleigh. Having been a St. Mary’s parent first, I am excited to have the opportunity to teach here. I look forward to getting to know even more of the wonderful students and families we have here.
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Mrs. Brittney Maslonka
Mrs. Brittney MaslonkaMiddle School English & Reading Teacher
I have been teaching middle school since 1999, when I graduated from UW Whitewater with a bachelor degree in education – English being my primary focus. Having spent 15 years teaching grades 5-8 in the public school, I’ve come to realize that the religious – faith driven – aspect of developing the whole child is missing. God continues to bring me closer to Him and the work He has in store for me. My job in the classroom is to foster and cultivate a passion for learning.
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Mrs. Christine Fredricks
Mrs. Christine FredricksArt Teacher
I have a Bachelor of Fine Arts degree from UW-Eau Claire. I have been St. Mary’s art teacher since 2011. I am married to Matthew and our two sons attended St. Mary’s School.
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Mrs. Doreen Houge
Mrs. Doreen HougeSchool Librarian
I have taught for 40 years with 38 of those years here at St. Mary’s, with the majority as Media Specialist. Last year I retired, but was offered a part time position as librarian, which I gladly accepted. Reading is one of my passions, and I hope to pass on that love of reading to the students of St. Mary’s.
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Mrs. Karla Vriezen
Mrs. Karla VriezenMusic Teacher
It is with great pleasure that I, Karla Vriezen, return for my second year as the music teacher. It is a joy to share my love of music with the students and staff of St. Mary’s. I look forward to another exciting year with new opportunities for growth in music education, and musical productions that will bring excitement and joy to all students at St. Mary’s.
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Mrs. Kay Fisher
Mrs. Kay FisherPhysical Education
I have been teaching at St. Mary’s since 2013.I am married and have 4 wonderful children. I received my B.S. degree from the Western Illinois University and my Master’s from National Louis University.
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Mr. Dennis Gre
Mr. Dennis Gre Spanish Teacher
Born in Santiago (Chile) but I have lived most of my life in Spain. I attended an American boarding school in Murcia (Spain) and then I received my Bachelor’s Degree in History, Master’s degree in Philosophy and PhD in Philosophy at the University of Murcia. I am excited to teach the students as much Spanish as possible, letting them know about the cultural aspects of the Spanish speaking countries.
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Ms. Katherine Wurtz
Ms. Katherine Wurtz Technology Teacher
I am new to St. Mary School this year. I attended St. Patrick Catholic School and enjoyed creating relationships that have lasted over the years. I received my Bachelor Degree in Elementary Education with a minor in Science from Edgewood College in 2005. I taught Grades 4, 5, and 3rd Grade math at Brother Dutton in Beloit. From there, I moved to Arizona and taught Grades 2 and 4 for five years. I am now the Technology Teacher and 2nd Grade Religion Teacher. I am looking forward to a wonderful year at St. Mary’s!
Dan Kessler
Dan KesslerMaintenance
I have lived in Janesville most my life. I am married to my wife Jenny, who attended St. Mary’s school. We have two daughters, Addison, and Kaitlyn, they both currently attend St. Mary’s School. I enjoy baseball, classic cars and helping coach my girls’ softball teams.