John Stevens — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Cook-County, Illinois

Our Model Tree links this John Stevens across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1888), then head of a 4-person household.

Age 52 b. ~1888 Male Head Born: Greece Married

1940 Census Record Details

Census Year	1940
Location	Cook-County, Illinois
Surname	Stevens
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	52
Marital Status	Married
Birthplace	Greece
1935 Residence (City)	Oak Park
1935 Residence (County)	Cook
Naturalization Status	First papers filed
Additional Details
Occupation	Broker
Industry	Real Estate
Class of Worker	PW
Hours Worked	60
Income (1939)	1000
Highest Grade	H 3
1935 Residence	Same place
Birth Country	Greece
Birthplace (normalized)	greece
Occupation	Broker
Township / Ward	Oak Park
Est. Birth Year	~1888

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 John	Age	Birth yr
Gwendolyn Stevens	Daughter	—	17	~1923
John Stevens	Head	—	52	~1888
John Stevens	Son	—	20	~1920
Gertrude Stevens	Spouse	—	42	~1898

Census Appearances

1920

Cook, Illinois

Head, age 32

Cook, Illinois · implied b. ~1888 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Stevens
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	32
Marital Status	Married
Birthplace	Greece
Year of Immigration	1905
Naturalization Status	Naturalized
Father's Birthplace	Greece
Mother's Birthplace	Greece
Occupation	Manager
Industry	Restaurant
Class of Worker	OA
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Greek
Home Owned/Rented	R
Birth Country	Greece
Birthplace (normalized)	greece

1930

Cook, Illinois

Head, age 42

Cook, Illinois · implied b. ~1888 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Stevens
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	42
Marital Status	Married
Birthplace	Greece
Naturalization Status	Naturalized
Year of Immigration	1904
Age at First Marriage	38
Father's Birthplace	Greece
Mother's Birthplace	Greece
Occupation	owner
Industry	Restaurant
Class of Worker	E
Can Read/Write	Yes
Mother Tongue	Greek
Home Owned/Rented	R
Home Value / Rent	65
Veteran	No
Birth Country	Greece
Birthplace (normalized)	greece

1940

Cook-County, Illinois

Head, age 52

Cook-County, Illinois · implied b. ~1888 — 4 household members

Surname	Stevens
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	52
Marital Status	Married
Birthplace	Greece
1935 Residence (City)	Oak Park
1935 Residence (County)	Cook
Naturalization Status	First papers filed
Occupation	Broker
Industry	Real Estate
Class of Worker	PW
Hours Worked	60
Income (1939)	1000
Highest Grade	H 3
1935 Residence	Same place
Birth Country	Greece
Birthplace (normalized)	greece

Model Tree

Linked across censuses

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

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This person

Anchor record

John Stevens

Head · 1940 · age 52 · b. ~1888 · 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-t0627-00785-00479)

Line	Name	Age	Relation	Occupation	Birthplace
41	Marjorie M. Gallagher	29	Daughter	Stenographer	Illinois
42	Rose Mary Gallagher	19	Daughter	—	Illinois
43	John Stevens THIS PERSON	52	Head	Broker	Greece
44	Gertrude Stevens	42	Wife	—	Norway
45	John Jr. Stevens	20	Son	—	Illinois
46	Gwendolyn Stevens	17	Daughter	—	Illinois
47	Laura Conealy	54	Head	Bookkeeper	Illinois
48	Gertrude Conealy	50	Sister	Bookkeeper	Illinois
49	Frank P. Dooley	66	Head	Owner	Illinois
50	Kathryn E. Dooley	66	Wife	—	Illinois
51	Kathryn Boardman	39	Head	Graduate Registered Nurse	Illinois
52	Mildred Blower	34	Partner	File Clerk	Illinois
53	Vincent Williams	41	Head	Salesman	England
54	Olive B. Williams	28	Wife	—	Wisconsin
55	Olive Bonnie Jean Williams	1	Daughter	—	Illinois
56	Anthony Jaacks	46	Head	Retail Pharmacy	Illinois
57	Jennie E. Jaacks	42	Wife	—	Illinois
58	William Jaacks	19	Son	—	Illinois
59	William Jaacks	13	Son	—	Illinois
60	Josephine Vihlein	63	Mother in law	—	Germany
61	Adelaide Conley	61	Head	Secretary	Wisconsin
62	Ruth P. Canell	24	Guest	Sales Girl	Michigan
63	Robert W. Handley	59	Head	Building Manager	Massachusetts
64	Florence Handley	60	Wife	—	Illinois
65	Roberta Handley	27	Daughter	Clerk	Illinois
66	William Handley	25	Son	Clerk	Illinois
67	Catherine Ryan	34	Head	—	Illinois
68	William A. Pillinger	62	Head	—	England
69	Lillian Pillinger	54	Wife	—	Indiana
70	Lillian Honsinger	51	Sister in law	Clerk	Indiana
71	James P. O'Brien	73	Head	Supervisor	New York
72	Hazel O. Brouck	42	Head	—	Illinois
73	Bess Mann	60	Mother	—	Illinois
74	Block 334	None	—	—	—
75	Leila Rich	37	Sister	—	Illinois
76	Block 335	None	—	—	—
77	Agnes London	58	Mother	—	Illinois
78	Sarah Hurley	62	Mother	—	Illinois
79	Helen D. Flynn	34	Daughter	Cashier	Illinois
80	Albert C. Thompson	12	Son	—	Illinois

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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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