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Right now, 2 researchers on YourRoots have John in their trees. The ancestor migration map traces 9 generations of this lineage.

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John (Jack) Jewell Cook 1931–1975

Public Tree Person

What is a Public Tree Person?

A Public Tree Person is an ancestor documented independently by multiple YourRoots tree owners. When several researchers' family histories converge on the same person, we publish a shared page that combines what they've documented.

Why this is a Public Tree Person

Full name consistent across 2 independent trees

Birth year and location consistent across 2 trees

Death year and location consistent across 2 trees

Compare a Public Tree Person with your own tree using Compare Tree.

A Reliability

Reliability Score: A

Strong — based on the source tree

Grade scale

A 3 criteria (Strong)
B 2 criteria (Medium)
C 1 criteria (Basic)

Verification checklist

Record available
Descendant's record available
Star tree owner

2 researchers on YourRoots have John Cook in their family trees — each with their own records and documentation. Trace the migration path across 9 generations. If this ancestor is in your tree too, you can compare what you've found and fill in the gaps together.

Last updated: August 25, 2026 · Reliability: A — verified across 2 independent trees, with linked records

Born 14 Nov 1931 · Oskaloosa, Mahaska, Iowa, USA

Died 15 Jul 1975 · Pella, Marion County, Iowa, United States of America

Father Jesse Merrill Cook

Mother Claire Elizabeth Jewell

Siblings Judith Ann Cook

Records

1940 United States Federal Census U.S., Find a Grave® Index, … U.S., Social Security Applications and … U.S., Social Security Death Index, … Iowa, Delayed Birth Records

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Researchers connected through John Cook 1931–1975

and 1 more tree owner connected with John Cook 1931–1975

Immediate Family

Parents

Jesse Merrill Cook

Claire Elizabeth Jewell

Spouse(s)

No spouse recorded

Children

No children recorded

Biography

John (Jack) Jewell Cook was born in 1931 in Oskaloosa, Mahaska, Iowa, USA, the child of jesse merrill cook and claire elizabeth jewell. In 1935, John (Jack) Jewell Cook established residence. In 1940, John (Jack) Jewell Cook resided in Pella, Marion, Iowa, USA. John (Jack) Jewell Cook passed away in 1975 in Pella, Marion County, Iowa, United States of America.

Sources

1

Census 1940 United States Federal Census
2

Burial Records U.S., Find a Grave® Index, 1600s-Current
3

Social Security U.S., Social Security Applications and Claims Index, 1936-2007
4

Death Records U.S., Social Security Death Index, 1935-2014
5

Birth Records Iowa, Delayed Birth Records

Life Timeline

1931

Birth of John (Jack) Jewell Cook in Oskaloosa, Mahaska, Iowa, USA

Birth

1935

John (Jack) Jewell Cook resided here

Residence

1940

John (Jack) Jewell Cook resided here in Pella, Marion, Iowa, USA

Residence

1975

Death of John (Jack) Jewell Cook in Buried in Oakwood Cemetery, Pella, Marion Co., Iowa

Death

Oldest Ancestor Line from John Cook

This ancestor line traces from London, England (1667) to Oskaloosa, Mahaska, Iowa, USA (1931) across 9 generations.

Direct Lineage

generations

Frequently Asked Questions

: John Cook (1931–1975) was born in Oskaloosa, Mahaska, Iowa, USA and died in Pella, Marion County, Iowa, United States of America. 2 researchers on YourRoots have this ancestor in their family trees, each with their own records. This page combines what they've independently documented and assigns a Reliability Score (A) based on cross-tree validation.
: Right now, 2 researchers on YourRoots have John in their trees. They're working independently, so connecting with them is a good way to cross-check your records and find things you might have missed. You can also explore the ancestor migration map that traces 9 generations of this lineage geographically.
: It varies by researcher — some have census records, others have marriage certificates, parish registers, or family Bible entries. Scroll up to see exactly what each person has cited.
: Use the "Compare Tree" button on any researcher's profile above. You can compare your tree side by side with theirs, see where your records overlap or differ, and collaborate to fill gaps.