David Cooper Profile Photo
1951 David 2023

David Cooper

February 28, 1951 — March 1, 2023

Twin Falls, ID


David Boyd Cooper was born February 28, 1951.
On his birthday, Tuesday, February 28, 2023, 10:40pm at the exact age of 72, David slipped peacefully from mortal life, at his home in Twin Falls, Idaho, surrounded by his wife Dianna Ruth (Day) Cooper, his son Duane Leigh Cooper Phillips, and his step-daughter Donita Romero.

His passing was due to complications from a several years-long battle with cancer.

He fought well the good fight.

He was preceded in death by his mother Dorthy Smith in 2022, his father Franklin Duane Cooper in 2021, his sister Rose Olsen in 2016, and his daughter Camille June Cooper in 1990.

He is survived by:
His Wife and best friend, Dianna Ruth Day Cooper
His Siblings:
Connie (Jim) Halcome
Milton (Michelle) Cooper
Joyce (Ken) McDonald
Mike (Wendy) Cooper
Amelia (Scott) Dumas
Dan (Catherine) Cooper
Lucy Smith (John Marcroft)
Brandell Smith
His Children:
Son, Duane Leigh Cooper Phillips
Son, Derek Cooper
Step-Son, Clifford Romero
Step-Daughter, Donita Romero
9 grandchildren
2 great-grandchildren
1 more great-grandchild on the way
and of course their faithful pup Peanut and cat Cleo.

He loved hunting and fishing and serving his fellows.

In the end he was settled with his lot in life and had time to prepare, and was extremely grateful for being able to do everything he had hoped for.

To our Husband, Son, Father, Brother, and Grandfather, we bid, "God be with you 'till we meet again."


Viewing to be held Saturday, March 11, 2023 from 2 to 2:50 pm at the meetinghouse at 847 Eastland Drive North, Twin Falls, Idaho.

Followed by Services from 3 to 4 pm.


Another viewing March 17, 2023, at 9 to 11:30 am at: Jess C. Spencer Mortuary 21228 Redwood Rd. Castro Valley, Ca 94546

Interment 12 noon at: Lone Tree Cemetery, Hayward, California.

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

Service Schedule

Past Services


Saturday, March 11, 2023

2:00 - 3:00 pm (Mountain time)

The Church of Jesus Christ of Latter-day Saints

847 Eastland Dr N, Twin Falls, ID 83301

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

Funeral Service

Saturday, March 11, 2023

3:00 - 4:00 pm (Mountain time)


Click to watch

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