John Peterson — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Washington-County, Oregon

Our Model Tree links this John Peterson across the 1920, 1930 and 1940 US Censuses in Washington-County, Oregon (XGBoost, ~Confirmed), with identified parents John & Matilda — first a son (b.~1897), then head of a 3-person household.

Age 43 b. ~1897 Male Son Born: Oregon Single

1940 Census Record Details

Census Year	1940
Location	Washington-County, Oregon
Surname	Peterson
Given Name	John
Relationship to Head	son
Sex	M
Color / Race	White
Age	43
Marital Status	Single
Birthplace	Oregon
1935 Residence (City)	Precinct 40
1935 Residence (County)	Washington
Additional Details
Occupation	Farmer
Industry	Farm
Class of Worker	OA
Income (1939)	150
Highest Grade	No 7
1935 Residence	Same place
Birth State	Oregon
Birth Country	United States
Birthplace (normalized)	oregon
Occupation	Farmer
Township / Ward	Precinct 40
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.

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

Name	Relation to head	Relative to John	Age	Birth yr
John Peterson	Head	—	78	~1862
John Peterson	Son	—	43	~1897
Mathilda Peterson	Spouse	—	67	~1873

Census Appearances

1920

Washington, Oregon

Son, age 23

Washington, Oregon · implied b. ~1897 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Petersen
Given Name	John H.
Relationship to Head	Son
Sex	M
Color / Race	White
Age	23
Marital Status	Single
Birthplace	Oregon
Father's Birthplace	Denmark
Mother's Birthplace	Oregon
Occupation	none
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Oregon
Birth Country	United States
Birthplace (normalized)	oregon

1930

Washington, Oregon

Son, age 33

Washington, Oregon · implied b. ~1897 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Peterson
Given Name	John H.
Relationship to Head	Son
Sex	M
Color / Race	White
Age	33
Marital Status	Single
Birthplace	Oregon
Father's Birthplace	Denmark
Mother's Birthplace	Oregon
Can Read/Write	Yes
Birth State	Oregon
Birth Country	United States
Birthplace (normalized)	oregon

1940

Washington-County, Oregon

Son, age 43

Washington-County, Oregon · implied b. ~1897 — 3 household members

Surname	Peterson
Given Name	John
Relationship to Head	son
Sex	M
Color / Race	White
Age	43
Marital Status	Single
Birthplace	Oregon
1935 Residence (City)	Precinct 40
1935 Residence (County)	Washington
Occupation	Farmer
Industry	Farm
Class of Worker	OA
Income (1939)	150
Highest Grade	No 7
1935 Residence	Same place
Birth State	Oregon
Birth Country	United States
Birthplace (normalized)	oregon

Model Tree

Model Tree available

Our Model Tree links John Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Peterson (~0.92 confidence) and mother Matilda Peterson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.

Show:

Gen 1 Parents confidence ≈ 0.92

Father

John Peterson

b. ~1862

Source father

● Household · direct · ~0.92

Mother

Matilda Peterson

b. ~1873

Source mother

● Household · direct · ~0.92

This person

Anchor record

John Peterson

Son · 1940 · age 43 · b. ~1897 · Oregon

★ You are viewing this record

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

Original Census Page

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

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-03383-00298)

Line	Name	Age	Relation	Occupation	Birthplace
41	Lucille Ausman	40	wife	—	Oregon
42	Richard A Ausman	4	son	—	California
43	Quentin Rusch	20	helper	Farm Laborer	Kansas
44	Julius Kaye	45	head	Farm	Germany
45	Hilda C Kaye	31	wife	—	Illinois
46	Marcella Kaye	9	daughter	—	Oregon
47	William Toelle	60	head	Farmer	Missouri
48	Jenny Toelle	55	wife	—	Washington
49	Sadie Toelle	15	daughter	—	Oregon
50	Louisa Curtis	82	grandmother	—	Germany
51	John P Peterson	78	head	Farmer	Denmark
52	Mathilda Peterson	67	wife	—	Oregon
53	John Peterson THIS PERSON	43	son	Farmer	Oregon
54	Arthur Barth	35	head	Bead Sawer	South Dakota
55	Adeline Barth	34	wife	—	Oregon
56	Edward Anderson	55	head	Merchant	Oregon
57	Anna Anderson	50	wife	—	Oregon
58	Chris Alberbach	71	head	—	Switzerland
59	Mary Alberbach	27	son	Farmer	Oregon
60	Elizabeth Alberbach	25	daughter	—	Oregon
61	Mary Alberbach	65	sister	—	Switzerland
62	Julius Crozni	61	head	Farmer	Iowa
63	Mary Crozni	59	wife	—	Switzerland
64	Clarence Crozni	25	son	Truck Driver	Oregon
65	Gerald Lehman	27	head	Truck Driver	Oregon
66	Ester Lehman	25	wife	—	Oregon
67	Anthony Lehman	27	brother	Truck Driver	Oregon
68	Arnold Wyman	56	head	Farmer	Oregon
69	Emma Wyman	41	wife	—	Switzerland
70	Bertha Wyman	84	mother	—	Switzerland
71	Mike Cavanaugh	42	boarder	Bus Driver	Utah
72	Benjamin Crozni	50	head	Farmer	Oregon
73	Lilly Crozni	50	wife	—	Iowa
74	Allen B Crozni	8	son	—	Oregon
75	Carl A Larson	28	head	Farmer	Oregon
76	Dorothy Larson	23	wife	Registered Nurse	Oregon
77	Jacob Nyas	61	head	Fireman	Switzerland
78	Alice Nyas	42	wife	—	Idaho
79	Jacqueline Nyas	6	daughter	—	Oregon
80	Charles Romback	21	lodger	Laborer	Minnesota

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Pedigree Summary

John

Gen 1 · 2 parents ~0.92

Max depth 4 (1900–1950 window)

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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