Harlan Zwak Obituary
With heavy hearts, we announce the death of Harlan Zwak of Sioux Falls, South Dakota, who passed away on September 18, 2025 at the age of 74. Family and friends can send flowers and condolences in memory of the loved one. Leave a sympathy message to the family on the memorial page of Harlan Zwak to pay them a last tribute.
He was predeceased by: his parents, Gerrit Zwak and Tillie Zwak; and his sister Lucille Langdon (Doug). He is survived by: his wife Kathryn "Kaci" Zwak; his sons, Aaron Zwak (Michele), Michael Zwak (Stephanie), Nicholas Beesley (Billie Taylor) and Nathan Beesley (Kyle Comes); his grandchildren, Aiden Zwak, Nevaeh Spencer (Austin Merrow), Hannah Zwak, Maddex Zwak and Landyn Zwak; and his siblings, Jan Hagen (Daryl), Gerald Zwak (Julie) and Wayne Zwak (Valerie).
