Martha Cooper — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Klickitat-County, Washington

Our Model Tree links this Martha Cooper across the 1920, 1930 and 1940 US Censuses in Klickitat-County, Washington (XGBoost, ~Confirmed) — first a spouse (b.~1882), then head of a 4-person household.

Age 58 b. ~1882 Female Spouse Born: California Married

1940 Census Record Details

Census Year	1940
Location	Klickitat-County, Washington
Surname	Cooper
Given Name	Martha J.
Relationship to Head	wife
Sex	F
Color / Race	White
Age	58
Marital Status	Married
Birthplace	California
1935 Residence (City)	Spring Creek Prec.
1935 Residence (County)	Klickitat
Additional Details
Occupation	housewife
Industry	Home
Income (1939)	0
Highest Grade	No 6
1935 Residence	Washington
Birth State	California
Birth Country	United States
Birthplace (normalized)	california
Occupation	Housewife
Township / Ward	Spring Creek Prec
Est. Birth Year	~1882

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 Martha	Age	Birth yr
Guy Cooper	Head	—	67	~1873
Floyd Cooper	Son	—	38	~1902
Guy Cooper	Other	—	7	~1933
Martha Cooper	Spouse	—	58	~1882

Census Appearances

1920

Klickitat, Washington

Spouse, age 39

Klickitat, Washington · implied b. ~1881 — 8 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Cooper
Given Name	Martha G.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	39
Marital Status	Married
Birthplace	California
Father's Birthplace	Pennsylvania
Mother's Birthplace	California
Occupation	none
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	California
Birth Country	United States
Birthplace (normalized)	california

1930

Klickitat, Washington

Other, age 49

Klickitat, Washington · implied b. ~1881 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Cooper
Given Name	Martha G.
Relationship to Head	wife-h
Sex	F
Color / Race	White
Age	49
Marital Status	Married
Birthplace	California
Age at First Marriage	17
Father's Birthplace	Illinois
Mother's Birthplace	California
Occupation	none
Can Read/Write	Yes
Veteran	no
Birth State	California
Birth Country	United States
Birthplace (normalized)	california

1940

Klickitat-County, Washington

Spouse, age 58

Klickitat-County, Washington · implied b. ~1882 — 4 household members

Surname	Cooper
Given Name	Martha J.
Relationship to Head	wife
Sex	F
Color / Race	White
Age	58
Marital Status	Married
Birthplace	California
1935 Residence (City)	Spring Creek Prec.
1935 Residence (County)	Klickitat
Occupation	housewife
Industry	Home
Income (1939)	0
Highest Grade	No 6
1935 Residence	Washington
Birth State	California
Birth Country	United States
Birthplace (normalized)	california

Model Tree

Linked across censuses

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

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This person

Anchor record

Martha Cooper

Spouse · 1940 · age 58 · b. ~1882 · 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 — Klickitat-County, Washington Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-04349-00989)

Line	Name	Age	Relation	Occupation	Birthplace
1	Matthew Freeman	79	head	Farmer	England
2	Eva L. Freeman	63	wife	Housewife	Iowa
3	Charles F. Means	39	head	Farmer	Oregon
4	Martha Means	41	wife	Housewife	Washington
5	Melba Means	13	daughter	—	Oregon
6	Howard Means	10	son	—	Oregon
7	Ray Means	6	son	—	Oregon
8	Thomas Esteb	26	head	Farmer	Oregon
9	Ruby Esteb	26	wife	Housewife	Washington
10	Thomas Esteb	1	son	—	Washington
11	Guy L. Cooper	67	head	Farmer	Oregon
12	Martha J. Cooper THIS PERSON	58	wife	Housewife	California
13	Floyd W. Cooper	38	son	Farmer	Washington
14	Guy L. Cooper	7	grandson	—	Washington
15	Raleigh Largent	43	head	Farmer	Washington
16	Ruth Largent	37	wife	School Teacher	Washington
17	Max Largent	10	son	—	Nebraska
18	Paul Andrews	44	brother-in-law	Flower Packer	South Dakota
19	John A. Chastain	44	head	Farmer	Oregon
20	Beatrice Chastain	37	wife	Housewife	Iowa
21	Gerald Chastain	15	son	—	Oregon
22	Marvin Chastain	10	son	—	Oregon
23	Denton Russell	26	head	Surveying	Oregon
24	Jeanette Russell	26	wife	Housewife	Oregon
25	Coraleah Russell	1	daughter	—	Oregon
26	Judith K. Russell	2	daughter	—	Washington
27	Albert Thornton	18	lodger	—	Washington
28	Clarence A. Lester	79	head	Farmer	Colorado
29	Jenny E. Lester	76	wife	Housewife	Illinois
30	Ben Lester	36	son	Farmer	Washington
31	Harold Groves	37	head	Farmer	Wisconsin
32	Emma Lee Groves	36	wife	Housewife	Texas
33	Betty J. Groves	13	daughter	—	Oklahoma
34	Doris M. Groves	11	daughter	—	Oklahoma
35	Addbert Groves	59	father	Farmer	Wisconsin
36	Charles C. Wright	46	head	Farmer	Nebraska
37	Alpha H. Wright	37	wife	Housewife	Oklahoma
38	Charles B. Wright	17	son	—	Oklahoma
39	Odelsa H. Wright	15	daughter	—	Oklahoma
40	Henry C. Walker	54	head	Farmer	Missouri

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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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