Dave Endriss

Dave has served this church since November of 2000. His previous ministry includes seven years in Alaska and seven years in Minnesota. He grew up in the San Francisco area with his four brothers and sisters. His interests include: reading, drama, traveling, archeology, church history, and art. Dave is married to Nicola and they have two sons, Paul and Robert.

Louis Nady
Financial Secretary

​​Louis has been the Financial Secretary since September of 2016. He and his wife, Susan, have two children, five grand-kids, one dog and six grand-dogs.  He enjoys spending time with family and friends, boating, Boy Scouts and walking the dog.

Amy Edgington
Children & Youth Christian Education Director

​Amy became the Youth Christian Education Director in July of 2015. She has attended Trinity since second grade and was involved in Middle School & High School Youth Groups and Calvin Choristers. She has been a Sunday school teacher, CE member and VBS teacher. Amy has two children, Matthew and Aubrey. ​Amy enjoys spending time with family and friends, boating, running, hiking and reading.​ 

Mark Koskamp
Minister of Music

Mark has been the organist at Trinity since 1983. He took on the added role of Chancel Choir Director in 1991. Mark spends his week at The Principal Financial Group in Des Moines working as a marketing consultant in the home office. He is active in the American Guild of Organists and enjoys running, family, history, travel and art museums.

Todd & Sarah Keyser
Middle School Youth Directors

Sarah has been a member of Trinity since she was one of the youth. Sarah and Todd were married at Trinity, and Todd has been a member since they returned to Indianola in 1997. Sarah teaches math at Indianola High School, and Todd teaches vocal music at Southeast Polk Junior High. They have two children, Ellen and Will. Sarah is also a commissioned lay pastor serving as pulpit supply for Des Moines Presbytery.

Wendy Dowell
Office Administrator

Wendy has been Office Administrator since August of 2008. She and her husband, Dan, have two children: Dustin, is a web developer at Access Publishing, and Ashlyn, is a CNA at Good Samaritan and attending DMACC for nursing. Wendy enjoys walking, working in the yard, and spending time with her family.

Chari Kruse
Chancel Bells and Calvin Choristers Director

Chari has been a member of Trinity since 1992. She directed the youth choirs from 1992 to 2006 and Calvin Choristers again from 2009 to present. She formed the bell choir in 1995. She also works as Administrative Assistant for Des Moines Metro Opera in Indianola. Chari and her husband, Matt, have two sons: Adam, a captain in the Air Force who is currently in med school at University of Iowa, and  Jason, who works for Union Pacific in Omaha. Chari enjoys ringing solo handbells, gardening, reading and volunteering for music organizations in Indianola.

Nick & Becca VanDam
High School Youth Directors

Becca has been a member of Trinity since moving here in 1993; Nick became a member in 2005. Nick & Becca were married at Trinity and their children have all been baptized here: Madison, Leighia, Karynne, Juliana, Isabell, Hadley and Brett. Nick is a carpenter with VanDam Construction and Becca is a stay at home mom. They became the High School Youth Directors in the fall of 2011. Becca also teaches youth Sunday school and is the Director of Kids' Club.

Sarah Blakley
Childcare Attendant

Sarah and her family are members of Trinty and she is Childcare Attendant for the nursery on Wednesday evenings. She also works for Regions Bank.

Glenda Richards
Childcare Attendant

Glenda is a member of Trinity and is Childcare Attendant for the nursery during worship and church school on Sundays. Glenda enjoys her time with the children and enjoys Bible studies on Monday nights. She also works at Indianola Good Samaritan.