Pastor Sonja

Pastor Sonja Gerstenberger (She/Her)

515-292-2131 or 515-554-4348

Pastor Sonja Gerstenberger joined the St. Andrew’s ministry team in March 2021. She is passionate about making the love of God in Jesus known to the world through ministry, service, and relationship.  Pastor Sonja has her B.A. from Wartburg College in English education and is a 2020 graduate of Luther Seminary’s MDiv Distributed Learning program. Pastor Sonja’s ministry is informed by careers in education, human resources, communication, and finally lay ministry. She served for seven years as faith formation director in an ELCA congregation, where she heard and answered the call to ministry. Pastor Sonja and her husband, Scott, have three children (Lucas – 2006, Nikki – 2008, and Analise – 2010) and most anything that can be considered a hobby involves caring for or spending time with them.


Jazmine Vega (She/Her)

Office Administrator | 515-292-2131

Jazmine Vega is the Office Administrator and Communications Manager for St. Andrew's Lutheran Church. Jazmine comes to us with ten years of experience in administrative support roles and brings her welcoming demeanor to our congregation.

Dave Krumm

Dave Krumm

Business Manager

Dave has been around St. Andrew’s a long time and has been a part of a lot of things that have happened here over the years. He has served on a variety of committees and Council, and been both Treasurer and President of this congregation. Dave works extensively with the People of Pine Ridge on housing and workforce development issues, and heads three non-profit/ philanthropic entities. When not engaged in those and working at St. Andrew’s, Dave enjoys cooking, gardening, reading, music, and fishing.

Lisa Downs

Lisa Downs (She/Her)

Events Coordinator & Communications Manager

Lisa Downs has been a part of St. Andrew’s for over 9 years. She has served on committees working with events, sang in the choir, helped to teach a Sunday school class, and most recently serves as co-chair for the Outreach Committee. She has lived in the Ames Community for over 34 years and has served on many non-profit organizations and committees. Lisa has been a strong advocate for those in need for many years, particularly around hunger relief. She most recently started the Blessings From The Heart Program which helps meet the needs of children, adults, and families. Lisa has 4 grown children and 3 grandchildren. She is engaged to long-time SALC member, Stephen Loucks, and is looking forward to their upcoming wedding and continuing to serve SALC and the community together.


Steve Hoifeldt

Director of Music Ministries

Steve Hoifeldt directs the adult choir at St. Andrew’s and is well-known in central Iowa for his excellent choral directing. He grew up in Iowa and has lived here most of his life. He received a BA in Vocal Performance from Bethany College in Lindsborg, KS and a MA in Vocal Performance from the University of Iowa in Iowa City. He has been teaching in Ames as a private voice instructor and choral conductor for over 30 years. He teaches Applied Voice, Music Appreciation and World Music and directs several choirs in the area.

Connie Sweeney

Connie Sweeney

Choral Accompanist & Instrumental Ensemble Director

Connie serves St. Andrew’s as the choir accompanist and instrumental ensemble director. Her music background includes 25 years of teaching vocal and general music at schools in Illinois and Iowa. Besides music, Connie enjoys gardening, traveling, sewing, and reading. Connie has two grown children—Joe in Pennsylvania and Megan in Colorado.

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Sawyer Shiffler


Sawyer Shiffler is the organist at St. Andrew's Lutheran Church. He is from Des Moines, Iowa, and graduated from the University of Iowa with a degree in pipe organ performance and a minor in German. He has been playing music his entire life, starting with piano lessons in kindergarten. He is a member of the Phi Mu Alpha Sinfonia music fraternity and the Central Iowa chapter of the American Guild of Organists.