top of page

Our Leadership and Staff


Dan Anderson

Daniel Anderson was born and raised in New Jersey. He eventually moved to Long Island
where he met his wife, Holly, while attending The Stony Brook School, a Christian College Prep
school founded in 1927. After graduating from Stony Brook, they both attended Christ for the
Nations, a Bible college in Stony Brook. After being married in 1989, they began their early
married life by spending almost a year in Malaysia and Singapore as missionaries in 1990. In
1992, they moved to Madison, Wisconsin after receiving a call to be music director at Bethesda
Christian Fellowship. Dan served at Bethesda for six years and then served as music director
for several other local churches after that. While serving as music director, he was also involved
in various ministries to the UW Madison campus. Additionally, Dan was a professional touring
musician traveling alone and with several different bands throughout the United States while
also teaching private piano, guitar and songwriting lessons. He owned and operated Boxcar
Studios where he was engineer and producer for eight years. He continues to be active in the
music world composing and performing regularly.

In 2003, Dan became the music director at Calvary Lutheran Chapel on the UW Madison
campus. He served nine years as music director and then entered the SMP program, through
Concordia St. Louis, to train to become the pastor at Calvary. He served as vicar at Calvary
beginning in 2012 and was ordained in August of 2015 at Mt. Olive Church in Madison. He was
then installed as pastor at Calvary in September of 2015. Dan received a call to be Calvary
Chapel’s pastor in December of 2018. He accepted that call and was installed on February
of 2019. All in all, he has served Calvary and been a part of the community for 17 years.

Dan and Holly have two children and one grandchild. Their daughter, Grace, lives with her
husband, Michael, in Madison. In December of 2019, Grace and Michael welcomed the birth of
their son, Sterling. Dan and Holly are thrilled to be first-time grandparents. Their son, Ryan,
recently moved back to Madison from Oshkosh. They are happy to be able to connect with him
on a more regular basis, now that he is in the same city. Holly is currently employed at
American Girl as a graphic design artist. Dan and Holly celebrated their 30th wedding
anniversary in May of 2019. They enjoy spending time camping at their property in Wild Rose,
WI when they have a chance to get away.

Joan's Pic.jpg

Joan Ostrowsky

Administrative Assistant

Joan Ostrowsky is originally from Madison, Wisconsin and now resides in Sun Prairie. Joan
attended UW Madison as a music major from 1978-1980. Later, from 1990-1993, she attended
Edgewood College where she earned a Piano Pedagogy Certificate. She taught private piano
lessons for 27 years as well as holding various office and retail positions.


Throughout the years,
Joan has served on worship teams at various churches using her musical gifts in the areas of
piano, vocals, recorder and violin as well as directing the choir for a Christmas Pageant. For over
a decade, she also owned her own business designing beaded jewelry and developing and
teaching classes at bead stores as well as at the Annual Madison Art Glass & Bead Show. Joan
has enjoyed a variety of occupations throughout her lifetime.

Joan began working at Calvary on July 1 st , 2018. In her position as Administrative Assistant, she
is responsible for assisting Pastor Dan, making sure the office is operating efficiently, managing
building issues, organizing events, acting as communications hub, updating and distributing
marketing materials, assisting with development and more. Her abilities in the areas of attention
to detail as well as organization have served her well in regard to her position at Calvary. Joan
has enjoyed getting to know the students and staff here and is very pleased to be a part of the
ministry at Calvary.

In her spare time, Joan enjoys participating in the following activities: playing piano and
recorder, working on craft projects, reading a good book, taking hikes, bird-watching, and
attending concerts and plays.


Brandon Dexter

Community Engagement Coordinator

Brandon Dexter is the new Community Engagement Coordinator! He is currently a senior at UW-Madison studying Religious Studies. Brandon really enjoys connecting with new people, so he was super excited when he heard about this position. God has given him an amazing opportunity to share the Gospel of Christ through active and intentional relationships. It is his prayer and vision to see this position become full time so he has the time and resources to pour into each and every person in our Calvary community.


Ava Cook

Leadership Team President


Bryan Boger

Board of Spiritual Life Chairman


Will Derenne

Board of Directors President

bottom of page