Theodore Mrnak

On October 24th, 2018 our beloved husband, father and grandfather passed away. Ted was born to Joseph and Martina (Vanderpaas) Mrnak and raised on the family ranch south of Bowman, ND. He graduated from Bowman High School and North Dakota State college of Science at Wahpeton, ND. He married the love of his life, Florence Olson on November 19, 1955. They have two daughters Penny Besmer and Gay Whalin.

The family moved to Rapid City, SD in June of 1962 and Ted continued his career in banking and accounting. He soon transferred to the new field of computer programming. He worked on the first computer in Rapid City. He worked with computers for the rest of his life. He was a lifetime member of the Elks Club and the Lions Club. He loved to golf and travel with family and friends.

He is survived by his wife, Flo, daughters Penny Besmer, her spouse Alvin Besmer, Gay Whalin , her spouse Robin Whalin , two grandchildren, Brett Whalin & Caitlin Whalin.

His death is a great loss to his family and friends but we know he is golfing in heaven with Jesus.

He was preceded in death by his parents, 1 sister, 2 brothers and a step-sister.

There will be a memorial service at 1:00pm, Thursday, November 1st at South Canyon Lutheran Church in Rapid City.

His online guestbook is available to sign at