OUR STAFF

  • KRISTA ZIMMERMAN

    Pastor

    I have been at St. Mark’s since the beginning of March 2025. I have been a pastor for 15


    years. I graduated from the Lutheran School of Theology at Chicago in 2010 with my Master


    of Divinity. In 2006 I graduated from Houghton University in New York State with a Bachelor


    of Arts in Communications. I grew up in Rochester, NY before coming to the Midwest. I’ve


    been in and around the Chicago area for 20 years now and it feels like home. Especially since


    my parents live in Naperville and my sister and her family live in DeKalb. I live right in the


    middle- Sugar Grove. I love being a pastor but my favorite title is aunt! I am proud to serve a


    congregation that is serious about living out our mission to "share Christ's abundant love


    with each other and the world." In the past 10 months, I have enjoyed working with our


    dedicated and faithful council. We have gotten a lot of work done to help the ministry of the


    congregation run smoother including updating the constitution, re-working how we run our


    council meetings, updating our personnel policy and much more. It’s really incredible how


    much we have accomplished and I’m excited to work with our leadership in continuing to


    live into our mission pillars in 2026! Click here to email Pastor Krista.  Phone: 630-897-6891, ext. 101

  • DAVID wEBB

    DEACON

    I am in my first year serving on St. Mark's Church Council as Deacon of Children Youth and Family.


    I report on my day to day ministry which is at the intersection of worship, community engagement,


    youth and family ministry, and the St. Mark's Staff. I collaborate most often with Pastor Krista, the


    Children, Youth, and Family team, Worship and Arts team, Outreach Team, and the rest of the St.


    Mark's staff. Beyond my call to serve as a rostered leader and my job description as a staff person,


    I endeavor to serve St. Mark's and the Council by bringing thoughtful discernment, playful


    creativity, and hand's on hardwork to our shared ministry. Originally from Chillicothe, Ohio, I first


    moved to Chicago in 2008 to begin seminary at the Lutheran School of Theology at Chicago. Since


    then I've taught Middle School at a Lutheran Elementary school on the South Side, served as the


    Deacon of Faith Formation at St. Mark Lutheran in Mount Prospect, and The Deacon of Community


    at Christ the King in Torrance, CA. I love Godly Play, contemplative prayer, being outside,


    swimming, kayaking, and cooking with Christie, my wife of 13 years, Thomas (8), and Sam (5). 


    Click here to email Deacon David.  Phone: 630-897-6891, ext. 102


  • KRISTIN YOUNG

    DIRECTOR OF WORSHIP & fine ARTS

    Called to St. Mark’s in 1996 to lead this church’s song, it is pure joy to share Christ’s abundant love through the gift of music. The song here takes many forms and is expressed in many ways: from the classics, traditional choirs, and sacred cantatas to Dixieland, jazz, and contemporary praise teams and worship bands. It is always fun and inspiring! Working with students, singers, and musicians, teaching musical concepts, and preparing and presenting great music that draws people to God and deepens their faith are my passion. I graduated from DePaul University with a degree in piano performance and a minor in voice and conducting. I also enjoy traveling, the out-of-doors, hiking, riding bikes, fishing, gardening, and cooking. My husband, Bruce, and I enjoy living in the Midwest, where we have raised our four children.

    Click here to email Kristin. Phone: 630-897-6891, ext 103

  • JONI ACKLEY

    OFFICE & Communications MANAGER

    I’ve been the Office Manager at St. Mark’s since April 2022 and took on the Communications Manager position in October of 2023. I’ve lived in Aurora for almost 23 years and I recently became a first time home owner. I have a 15 year old cat named Brat, and a 7 year old Rottweiler named Reaper. Click here to email Joni.  Phone: 630-897-6891, ext 100

  • AL LETTOW

    FACILITY MANAGER

    I was born and raised in this area (Chicago and Elgin) and went to the University of Wisconsin in Madison, where I was a member of the Badger football team and met my wife, Vicki. We married in 1969 and have three adult children and seven grandchildren. I've migrated through two careers, from owning a ServiceMaster franchise for 15 years, to working for AT&T for 25 years. Now, my "third career" is helping keep the St. Mark's building running and working well. Vicki and I have been members of St. Mark's since 1974, and have been involved in multiple projects over the years. During my free time, I keep active hiking, biking, weight training, competitive stair climbing, and traveling in the Caribbean, Europe, and the USA.

    Click here to email Al. Phone: 630-897-6891, ext 106

  • JOHN THEMANSON

    FINANCE ADMINISTRATOR

    I was born in Monmouth, Illinois, and raised in Kewanee. I served in the Air Force from 1963 through 1967, and then graduated from Illinois State with a degree in applied computer science. When my wife, Sandy, and I came to Aurora in 1986, we found St. Mark’s. It’s amazing to see how this church has grown since we joined and gratifying to know that my family and I have been a part of that growth. I’m a widower with two adult daughters, Anna and Lauren, father-in-law to Victor and Michael, and grandpa to Bridget. In addition to being on staff at St. Mark’s, I am a member of The Lion’s Voice Choir. I enjoy time with my family, classical music, all sorts of puzzles, and travel. Click here to email John. Phone: 630-897-6891, ext 105