Mary Campbell — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Yakima-County, Washington

Our Model Tree links this Mary Campbell across the 1920, 1930 and 1940 US Censuses in Yakima-County, Washington (XGBoost, ~Confirmed) — first a spouse (b.~1897), then head of a 4-person household.

Age 43 b. ~1897 Female Spouse Born: Oregon Married

1940 Census Record Details

Census Year	1940
Location	Yakima-County, Washington
Surname	Campbell
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	43
Marital Status	Married
Birthplace	Oregon
1935 Residence (City)	Toppenish
1935 Residence (County)	Yakima
Additional Details
Occupation	Bookkeeper
Industry	Hardware Co.
Class of Worker	PW
Hours Worked	40
Income (1939)	210
Highest Grade	H-4
1935 Residence	Same place
Birth State	Oregon
Birth Country	United States
Birthplace (normalized)	oregon
Occupation	Bookkeeper
Township / Ward	Toppenish
Est. Birth Year	~1897

Household Members

Census records only state relationship to the household head. Pairwise kinship is derived (~90–95% accurate), not recorded. Step/blended families and boarders can break it.

4 people recorded at the same address in the 1940 census.

Name	Relation to head	Relative to Mary	Age	Birth yr
Helen Campbell	Daughter	—	16	~1924
L Campbell	Head	—	44	~1896
Lloyd Campbell	Son	—	19	~1921
Mary Campbell	Spouse	—	43	~1897

Census Appearances

1920

Yakima, Washington

Spouse, age 23

Yakima, Washington · implied b. ~1897 — 2 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Campbell
Given Name	Mary B
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	23
Marital Status	Married
Birthplace	Oregon
Father's Birthplace	New York
Mother's Birthplace	Wyoming
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Oregon
Birth Country	United States
Birthplace (normalized)	oregon

1930

Yakima, Washington

Spouse, age 33

Yakima, Washington · implied b. ~1897 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Campbell
Given Name	Mary J.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	33
Marital Status	Married
Birthplace	Oregon
Age at First Marriage	26
Father's Birthplace	New York
Mother's Birthplace	Wyoming
Can Read/Write	Yes
Birth State	Oregon
Birth Country	United States
Birthplace (normalized)	oregon

1940

Yakima-County, Washington

Spouse, age 43

Yakima-County, Washington · implied b. ~1897 — 4 household members

Surname	Campbell
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	43
Marital Status	Married
Birthplace	Oregon
1935 Residence (City)	Toppenish
1935 Residence (County)	Yakima
Occupation	Bookkeeper
Industry	Hardware Co.
Class of Worker	PW
Hours Worked	40
Income (1939)	210
Highest Grade	H-4
1935 Residence	Same place
Birth State	Oregon
Birth Country	United States
Birthplace (normalized)	oregon

Model Tree

Linked across censuses

Our Model Tree links Mary Campbell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.

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This person

Anchor record

Mary Campbell

Spouse · 1940 · age 43 · b. ~1897 · Washington

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Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1940 US Federal Census — Yakima-County, Washington Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-04372-00938)

Line	Name	Age	Relation	Occupation	Birthplace
1	Galbraith Halbreith	None	Florence D	5	H-4
2	Galbraith Halbreith	None	Donald	6	H-3
3	Christian Hinschback	56	Head	Clerk	Ohio
4	Mabel G Hinschback	54	Wife	—	Washington
5	Christian Hinschback	13	Son	—	Washington
6	George T. Walden	43	Head	Manager	Washington
7	Helen Walden	35	Wife	—	Washington
8	Melvin B Jansen	31	Head	Boy Tender	Washington
9	Neva Jansen	29	Wife	—	Oregon
10	Carol Jansen	7	Daughter	—	Oregon
11	Barbara Jansen	3	Daughter	—	Oregon
12	Donald E. Trimble	49	Head	Buyer	Iowa
13	Ruby E. Trimble	47	Wife	—	No. Dakota
14	Donald Eldon Trimble	24	Son	—	No. Dakota
15	Kelvin Trimble	39	Head	Manager	No. Dakota
16	Marguerite Trimble	34	Wife	—	Texas
17	Tomas H. Trimble	5	Son	—	Washington
18	Charles Chapman	34	Head	Painter	Washington
19	Bernice Chapman	31	Wife	—	Indiana
20	Leonard Chapman	12	Son	—	Washington
21	John H Andrews	43	Head	Bookkeeper	Minnesota
22	Bernice Andrews	34	Wife	—	Colorado
23	Charles Andrews	13	Son	—	Washington
24	Patricia Andrews	8	Daughter	—	Washington
25	Emma Leben	82	Mother-in-law	—	Kansas
26	L. J. Campbell	44	Head	Cook	Indiana
27	Mary Campbell THIS PERSON	43	Wife	Bookkeeper	Oregon
28	Lloyd Jr. Campbell	19	Son	Cook	Washington
29	Helen F. Campbell	16	Daughter	—	Washington
30	Orville Mccord	65	Head	—	Kansas
31	Bertha Mccord	64	Wife	—	Kansas
32	Ervin Mccord	23	Head	Clerk	Washington
33	Wilma Mccord	23	Wife	—	Washington
34	Charles R Chapman	63	Head	Manager	England
35	Mary Chapman	57	Wife	—	So. Dakota
36	George Hall	48	Head	Truck Driver	Washington
37	Maude Hall	39	Wife	—	Oklahoma
38	Violet Hall	31	Daughter	—	Washington
39	Alvin Hall	16	Son	Truck Driver	Washington
40	Rogelia Hall	4	Daughter	—	Washington

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About This Record & Model Tree

This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.

Source: National Archives and Records Administration (NARA)

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