Bertha Nelson — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Clackamas-County, Oregon

Our Model Tree links this Bertha Nelson across the 1920, 1930 and 1940 US Censuses in Clackamas-County, Oregon (XGBoost, ~Confirmed) — first a spouse (b.~1893), then head of a 3-person household.

Age 47 b. ~1893 Female Spouse Born: Kansas Married

1940 Census Record Details

Census Year	1940
Location	Clackamas-County, Oregon
Surname	Nelson
Given Name	Bertha
Relationship to Head	wife
Sex	F
Color / Race	White
Age	47
Marital Status	Married
Birthplace	Kansas
1935 Residence (City)	Stafford Precinct 74
1935 Residence (County)	Clackamas
Additional Details
Occupation	housework
Industry	own home
Class of Worker	OA
Hours Worked	40
Highest Grade	Hs 2
1935 Residence	Same place
Birth State	Kansas
Birth Country	United States
Birthplace (normalized)	kansas
Occupation	Housework
Township / Ward	Stafford Precinct 74
Est. Birth Year	~1893

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.

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

Name	Relation to head	Relative to Bertha	Age	Birth yr
Helen Nelson	Daughter	—	21	~1919
Bertha Nelson	Spouse	—	47	~1893
Arleen Nelson	Daughter	—	24	~1916

Census Appearances

1920

Multnomah, Oregon

Spouse, age 27

Multnomah, Oregon · implied b. ~1893 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Nelson
Given Name	Bertha
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	27
Marital Status	Married
Birthplace	Kansas
Father's Birthplace	Sweden
Mother's Birthplace	Kansas
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Kansas
Birth Country	United States
Birthplace (normalized)	kansas

1930

Multnomah, Oregon

Spouse, age 36

Multnomah, Oregon · implied b. ~1894 — 6 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Nelson
Given Name	Bertha
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	36
Marital Status	Married
Birthplace	Kansas
Age at First Marriage	20
Father's Birthplace	Sweden
Mother's Birthplace	Kansas
Can Read/Write	Yes
Birth State	Kansas
Birth Country	United States
Birthplace (normalized)	kansas

1940

Clackamas-County, Oregon

Spouse, age 47

Clackamas-County, Oregon · implied b. ~1893 — 3 household members

Surname	Nelson
Given Name	Bertha
Relationship to Head	wife
Sex	F
Color / Race	White
Age	47
Marital Status	Married
Birthplace	Kansas
1935 Residence (City)	Stafford Precinct 74
1935 Residence (County)	Clackamas
Occupation	housework
Industry	own home
Class of Worker	OA
Hours Worked	40
Highest Grade	Hs 2
1935 Residence	Same place
Birth State	Kansas
Birth Country	United States
Birthplace (normalized)	kansas

Model Tree

Linked across censuses

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

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This person

Anchor record

Bertha Nelson

Spouse · 1940 · age 47 · b. ~1893 · Oregon

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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 — Clackamas-County, Oregon Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-03355-00672)

Line	Name	Age	Relation	Occupation	Birthplace
1	Bertha Nelson THIS PERSON	47	wife	Housework	Kansas
2	Arleen Nelson	24	daughter	—	Oregon
3	Helen Leona Nelson	21	daughter	Waitress	Oregon
4	John B. Johnson	80	head	—	Sweden
5	Christina Johnson	69	wife	Farm Operator	Sweden
6	Levi Thwing Hansen	74	head	Farm Operator	Iowa
7	Walter Schubert	24	head	Farm Laborer	Oregon
8	Olive Schubert	20	wife	—	Missouri
9	Orie Bullington	56	head	Farm Laborer	Iowa
10	Amy Bullington	53	wife	—	Nebraska
11	Moley Jane Bullington	8	granddaughter	—	Oregon
12	Eugene W. Elzer	72	head	Landscape Gardener	Germany
13	Anna B. Elzer	56	wife	—	Germany
14	Hildegarde Elzer	21	daughter	Stenographer	Oregon
15	John S. Johnson	43	head	Landscape Gardener	Sweden
16	Kerstin Johnson	33	wife	—	Sweden
17	Coy Johnson	6	son	—	Oregon
18	Bernt Johnson	77	uncle	Farmer	Sweden
19	Albert J. Murphy	72	head	Landscape Gardener	Canada English
20	Ade E. Murphy	65	wife	—	Canada English
21	Earl Byer	29	head	Truck Driver	Oregon
22	Elizabeth Byer	33	wife	—	Minnesota
23	Faye Byer	14	daughter	—	Oregon
24	Gladys Byer	11	daughter	—	Oregon
25	Donald Byer	10	son	—	Oregon
26	Floyd Wanker	39	head	Merchant	Oregon
27	Lois Wanker	34	wife	—	Oregon
28	Dorothy Wanker	11	daughter	—	Oregon
29	Sarah Hargan	66	mother-in-law	—	Oregon
30	Walter W. Wanker	34	head	Merchant	Oregon
31	Arilla Wanker	34	wife	—	Washington
32	William W. Wanker	4	son	—	Oregon
33	Eftra Wanker	1	son	—	Oregon
34	Conrad Schroeder	71	head	Farm Laborer	Germany
35	Ida Schroeder	61	wife	—	New York
36	Mary Schroeder	27	daughter	—	New York
37	Leonard Schaler	62	head	Farm Operator	Ohio
38	Emma Schaler	60	wife	—	Oregon
39	Carl Schaler	22	son	Farm Laborer	Oregon
40	Ellen Schaler	20	daughter	—	Oregon

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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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