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520 S. Main St., PO Box 363
Platte, SD 57369
Phone: 605-337-3857
Fax: 605-337-2374
Ralph Dertien

Ralph Philip Dertien

Saturday, August 1st, 1936 - Monday, September 28th, 2020
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Ralph Philip Dertien, 84, of Sioux Falls, SD, formerly of Platte, SD, passed away Monday, September 28, 2020 at Edgewood Assisted Living Memory Care in Sioux Falls, SD. A joint Funeral Mass for Ralph and his wife, Doris is 10:00 A.M. Thursday, October 8, 2020 at St. Peter’s Catholic Church in Platte. A Committal Service with Military Honors will follow at Platte City Cemetery. Visitation will be held at Mount Funeral Home, Platte from 5:00 – 7:00 P.M. Wednesday, October 7, 2020 with a 6:45 P.M. Rosary and 7:00 P.M. Wake Service. Social distancing will be practiced. The services will also be live-streamed.

Ralph Philip Dertien was born on August 1, 1936 to Emmo and Mildred (Kubal) Dertien in Platte, SD. He grew up on the family farm, attended Darlington Grade School and farmed with his dad until his marriage.

On April 28, 1962 Ralph married Doris Mae Verba at St. Mark’s Catholic Church in Lake Andes, SD. He formed a partnership farming operation with John L. Johnson west of Platte, SD from April of 1962 until January of 1968 and then purchased his farm 11 miles west of Platte, farming until his retirement. Farming was Ralph’s passion.

He joined the Army National Guard in 1957 and retired in 1980 as a Captain. Ralph loved Vegas and purchased a home in 1991 spending every winter there until 2012. While there he enjoyed eating out every day which included his favorite meal of prime rib, playing bingo and hitting the slots hoping for a big jack pot. Ralph’s other hobbies included antique cars, trucks and tractors, playing pitch and he was an avid fan of the Dallas Cowboys. He also enjoyed NASCAR and the Rodeo. He never went anywhere without his beloved dog, Bud.

Grateful for having shared in Ralph’s life: his wife of over 58 years, Doris Dertien of Sioux Falls, SD; his three children: Mike (Darla) Dertien of Sioux Falls, SD, Donna Dertien of Las Vegas, NV and Curtis (Deanna) Dertien of Platte, SD; five grandchildren: Thomey Dertien (Destiny Zoss), Brooklyn Dertien and Levi Dertien all of Sioux Falls SD, Denise Dertien of Williamsburg, VA and Rick Dertien of Platte, SD; two great-grandchildren: Bentley Dertien and Polly Dertien both of Sioux Falls SD; two sisters: Sandy Breukelman of Green Bay, WI and Dolly Kooima of Spirit Lake, IA; two brothers-in-law: Ted (Joan) Verba of Plainfield, CT and Steve (Marlys) Verba of Sterling, AK; along with numerous nieces and nephews.

Ralph was preceded in death by: his parents, Emmo and Mildred Dertien; a brother, Gary Dertien; two sisters: Helen Dertien and Maxine Dertien; his parents-in-law, Tony Verba and Dorothy (Verba) Carda; and a brother-in-law, Jack Kooima.
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Memorial Program

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Service Details

  • Visitation

    Wednesday, October 7th, 2020 | 5:00pm - 7:00pm
    Wednesday, October 7th, 2020 5:00pm - 7:00pm
    Mount Funeral Home
    520 S. Main St.
    PLATTE, SD 57369
    Get Directions: View Map | Text | Email
    6:45pm Rosary and 7:00pm Wake Service, due to technical difficulties the service was not live-streamed.
  • Service

    Thursday, October 8th, 2020 | 10:00am
    Thursday, October 8th, 2020 10:00am
    St. Peter's Catholic Church - PL
    321 S. Ohio Ave.
    PLATTE, SD 57369
    Get Directions: View Map | Text | Email
    The service will also be live-streamed.
    Fr. Grant Lacey
  • Interment

    Platte City Cemetery
    PLATTE, SD 57369
    Get Directions: View Map | Text | Email
    Military Honors by Campbell-Timmerman American Legion #115 of Platte, SD.


  • Army National Guard
  • Dallas Cowboys
  • Roman Catholic Church


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Craig Johnson

Posted at 10:17pm
Ralph & Doris Dertien
Please accept our condolences on the passing of your father and mother. It was a blessing for the John & Rena Johnson family to have been a part of your lives from the early 1960s. John really enjoyed Ralph as a friend, farming partner and fellow National Guardsmen. John and Ralph spent many hours on the phone talking crops, prices and other day to day issues. Ralph would always stop at the house and visit with John if he was in town. They seemed to have a certain bond of friendship that they both enjoyed throughout my Dad’s life. I was fortunate enough to have been able to work with Ralph on the farm. He taught me how to drive a tractor, combine and operate a cycle mower with a dump rake in tow on hot summer days. He guided me on the techniques of repairing fences in the spring of each year and how to put in solid corner post. He taught me about how not to get blinded sided by a cow that was protective of her calf and how not to get run over by hogs as we chased them up the chute on hot summer days. Ralph and I had to clean his no frill Dodge two wheel drive pickup (1970 model year??) a couple of times when we were in town. We stopped at the car wash and opened both doors—took out any paper work or tools—and power washed the whole inside of the truck out and then the outside just to get the big chunks—then down the road we went. Of course the seats were made of plastic and there was only a rubber type mat on the floor. Ralph had a gift of being able to embellish his good and bad farm experiences with a twinkle in his eye and grin on his face. Ralph and John would also hunt pheasants every fall with a big group of friends. It seemed to never fail that on such events one or the other would run out cigarettes during the day and have to borrow one or two from each other. Doris was always a pleasure to visit with when we went in for dinner or when she brought out lunch to the field. Always a smile on her face and encouraging word when equipment wouldn’t work; when there was too much rain or not enough or when the animals were sick etc. A great farm partner that a husbands needs to be a success. I pray that in the midst of your sorrow that you will find comfort in all the joyful memories shared. May the love and mercy of our Lord be bestowed upon your family during this difficult time.
Craig & Jeff Johnson

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