Cover photo for Bertha Clark Cook's Obituary
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1937 Bertha 2020

Bertha Clark Cook

March 3, 1937 — April 5, 2020

Bertha Cook, 83, passed away peacefully, surrounded by her family, on April 5, 2020 after battling kidney failure.

Bertha was born on March 3, 1937 in Taylor, Idaho to Frank Clark and Rosalia Lords. She was the eleventh of eleven children. Following her birth, the family later moved to Idaho Falls.

At the age of sixteen, she met and fell in love with Amos K. Cook. They got engaged on Amos' birthday and were married on Bertha's seventeenth birthday in Idaho Falls, Idaho. Shortly after their marriage, Bertha and Amos moved to Manchester, Montana, just west of Great Falls. There they would welcome five children into their family: Jeff, Randy, Christine, Diane, and Dennis. The Cook family farmed in Manchester growing sugar beets. Their many hobbies as a family included camping in the mountains and keeping a large and beautiful garden.

On June 24, 1975 they were sealed for time and all eternity in the Idaho Falls Temple of The Church of Jesus Christ of Latter-Day Saints with all five of their children present.

Some of Bertha's greatest joys were her grandkids. Spoiling them was always on the top of her priority list. She spent countless hours and money taking grandchildren to the dollar store and buying each of them their own toy. A dollar store trip was always followed by a run to McDonald's.

On September 18, 2006, Amos passed away in Pocatello, Idaho.

Bertha enjoyed spending time with her family and friends. She was an excellent seamstress, making countless quilts for her loved ones. Bertha also enjoyed making her famous cinnamon twists and staying up way too late playing solitaire.

Bertha was a member of The Church of Jesus Christ of Latter-Day Saints. She had a valiant testimony of her Savior, Jesus Christ, which she shared with her family. She enjoyed going to her family home evening group each week. She loved serving in the church and completed two full-time missions in Nauvoo, Illinois and the Los Angeles, California Family History Center.

Bertha is survived by her children Jeff (Jan) Cook of Blackfoot, ID; Randy Cook of Pocatello, ID; Christine (Darryl) Nielsen of Vaughn, MT; Diane (Kent) Rowbury of Aberdeen, ID; Dennis (Julie) Cook of Buckeye, AZ; brother Vern (Pat) Clark of Idaho Falls, ID; sisters Betty Boulter of Idaho Falls, ID and Irene (Delmar) Griffith of Idaho Falls, ID; best friend Pat Cooper of Missoula, MT; as well as 44 grandchildren and 60 great-grandchildren.

She was preceded in death by her husband, parents, seven siblings, and many other loved ones.

The family would like to express their sincere thanks to the staff at the Idaho Kidney Center in Pocatello, and to the staff of Encompass Hospice for their loving care during Bertha's final days.

A "walk by" viewing will be held in her honor from 5:00-7:30 p.m. on Thursday, April 9 at Wilks Funeral Home 211 W. Chubbuck Road, Chubbuck, Idaho. All are encouraged to implement social distancing when attending.

A private graveside service will be held at 11:00 a.m. on Friday, April 10, 2020. A webstream of that graveside service will be available at

Memories and condolences may be shared with the family under the "Tribute Wall" tab above.

To order memorial trees or send flowers to the family in memory of Bertha Clark Cook, please visit our flower store.

Service Schedule

Past Services


Thursday, April 9, 2020

5:00 - 7:30 pm (Mountain time)

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Graveside Service

Friday, April 10, 2020

Starts at 11:00 am (Mountain time)

Enter your phone number above to have directions sent via text. Standard text messaging rates apply.

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