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John "Jack" Decker

1942 - 2026

John "Jack" Decker obituary, 1942-2026, Rapid City, SD

BORN

1942

DIED

2026

John Decker Obituary

John "Jack" Barry Decker, 83, passed away February 20, 2026 in Rapid City, South Dakota. Born in Montgomery, Alabama, he later grew up in White River, South Dakota, graduating with the Class of 1960 and working on the Krogman ranch during and after his high school years.
He graduated from the University of South Dakota in 1969 and worked in construction before spending four years in Alaska as a camp manager on the Trans Alaska Pipeline. He later worked for many years managing and training racehorses at Philadelphia Park, residing in Dover, Delaware.
Jack valued hard work, loyalty, and straight talk and was known for his dry humor.
He is survived by his brothers Henry (Jim) Decker and William (Bill) Decker, his godson Aaron Jordan, and several nieces and nephews. Burial will take place in Nenzel, Nebraska with a service in White River, date not yet set. Arrangements are with Kincaid Funeral Home.
For any updates please visit: https://tinyurl.com/3w6zsc56

To plant trees in memory, please visit the Sympathy Store.

Published by Capital Journal from Mar. 7 to Mar. 12, 2026.

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