Helen Peterson — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Cook-County, Illinois

Our Model Tree links this Helen Peterson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1892), then head of a 3-person household.

Age 48 b. ~1892 Female Spouse Born: Sweden Married

1940 Census Record Details

Census Year	1940
Location	Cook-County, Illinois
Surname	Peterson
Given Name	Helen
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	48
Marital Status	Married
Birthplace	Sweden
1935 Residence (City)	Chicago City
1935 Residence (County)	Cook
Naturalization Status	Naturalized
Additional Details
Income (1939)	0
Highest Grade	No 7
1935 Residence	Same place
Birth Country	Sweden
Birthplace (normalized)	sweden
Township / Ward	Chicago City
Est. Birth Year	~1892

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 Helen	Age	Birth yr
Harriet Peterson	Daughter	—	17	~1923
Ludwig Peterson	Head	—	49	~1891
Helen Peterson	Spouse	—	48	~1892

Census Appearances

1920

Cook, Illinois

Spouse, age 26

Cook, Illinois · implied b. ~1894 — 2 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Peterson
Given Name	Helen
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	26
Marital Status	Married
Birthplace	Sweden
Father's Birthplace	Sweden
Mother's Birthplace	Swedish
Occupation	Yes
Industry	none
Can Read	Swedish
Can Write	Yes
Speaks English	Yes
Mother Tongue	Sweden
Home Owned/Rented	1910
Birth Country	Sweden
Year of Naturalization	1906
Birthplace (normalized)	sweden

1930

Cook, Illinois

Other, age 37

Cook, Illinois · implied b. ~1893 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Peterson
Given Name	Helen
Relationship to Head	Wife-H
Sex	F
Color / Race	White
Age	37
Marital Status	Married
Birthplace	Sweden
Naturalization Status	Naturalized
Year of Immigration	1913
Age at First Marriage	30
Father's Birthplace	Sweden
Mother's Birthplace	Sweden
Occupation	none
Can Read/Write	Yes
Mother Tongue	Swedish
Birth Country	Sweden
Birthplace (normalized)	sweden

1940

Cook-County, Illinois

Spouse, age 48

Cook-County, Illinois · implied b. ~1892 — 3 household members

Surname	Peterson
Given Name	Helen
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	48
Marital Status	Married
Birthplace	Sweden
1935 Residence (City)	Chicago City
1935 Residence (County)	Cook
Naturalization Status	Naturalized
Income (1939)	0
Highest Grade	No 7
1935 Residence	Same place
Birth Country	Sweden
Birthplace (normalized)	sweden

Model Tree

Linked across censuses

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

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This person

Anchor record

Helen Peterson

Spouse · 1940 · age 48 · b. ~1892 · Illinois

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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 — Cook-County, Illinois Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-00990-00740)

Line	Name	Age	Relation	Occupation	Birthplace
1	Mabel E Ostrand	61	Head	—	Illinois
2	Lillian Schoonmaker	78	Mother	—	Norway
3	Grace Lloyd	45	Head	Stenographer	Indiana
4	Ludwig Henning Peterson	49	Head	Electric Crane Operator	Denmark
5	Helen Peterson THIS PERSON	48	Wife	—	Sweden
6	Harriet Peterson	17	Daughter	—	Illinois
7	Andrew Telle	55	Head	Owner	Norway
8	Elva Telle	70	Wife	—	Sweden
9	Sam S. Blein	80	Head	—	Norway
10	Edward Hacker	49	Head	Clerk	Illinois
11	Adeline Hacker	47	Wife	—	Illinois
12	Edward Jr. Hacker	7	Son	—	Illinois
13	Lena Iversen	53	Lodger	Wholesale Grocery	Illinois
14	Ingvald Fikvold	47	Head	Carpenter	Norway
15	Christine Fikvold	43	Wife	Housekeeper	Norway
16	Judith Fikvold	16	Daughter	Typist	Canada English
17	Kenneth Turner	62	Head	—	Scotland
18	Joseph Beeman	47	Head	Laborer	Illinois
19	Catherine Beeman	87	Mother	—	Ireland
20	John Mcclarey	34	Son-in-law	Truck Driver	Illinois
21	Rose Mcclarey	34	Daughter	—	Illinois
22	Charles Newman	54	Head	Steel Worker	Scotland
23	Minnie Newman	50	Wife	—	Scotland
24	John E. Newman	23	Son	Tool & Die Maker Apprentice	Illinois
25	Jacqueline Newman	20	Daughter	Telephone Operator	Illinois
26	Clifton Carothers	31	Head	Cabinet Maker	Colorado
27	Arlyss Carothers	27	Wife	Demonstrator	Missouri
28	Phyllis Carothers	7	Daughter	—	Colorado
29	Delores Carothers	3	Daughter	—	Kansas
30	Janet Carothers	1	Daughter	—	Illinois
31	David Lary	35	Head	Carpenter	Illinois
32	Sarah Lary	34	Wife	—	Illinois
33	Sam Lary	12	Son	—	Illinois
34	Edith Lary	8	Daughter	—	Illinois
35	Emil Koetz	52	Head	Salesman	Germany
36	Andrew Habel	38	Head	Salesman	Illinois
37	Lillian Habel	37	Wife	—	Illinois
38	Grace Habel	13	Daughter	—	Illinois
39	John Fjedel	55	Head	Watchman	Norway
40	Phyllis Fjedel	54	Wife	—	Norway

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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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