John Lucas — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Cook-County, Illinois

Our Model Tree links this John Lucas across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1892), then head of a 6-person household.

Age 48 b. ~1892 Male Head Born: Greece Married

1940 Census Record Details

Census Year	1940
Location	Cook-County, Illinois
Surname	Lucas
Given Name	John A.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	48
Marital Status	Married
Birthplace	Greece
1935 Residence (City)	Chicago
1935 Residence (County)	Cook
Naturalization Status	Naturalized
Additional Details
Occupation	Chef
Industry	Restaurant
Class of Worker	PW
Hours Worked	72
Income (1939)	640
Highest Grade	H-4
1935 Residence	Same House
Birth Country	Greece
Birthplace (normalized)	greece
Occupation	Chef
Township / Ward	Chicago
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.

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

Name	Relation to head	Relative to John	Age	Birth yr
Helen Lucas	Daughter	—	3	~1937
Jean Lucas	Daughter	—	2	~1938
Veronica Lucas	Daughter	—	5	~1935
John Lucas	Head	—	48	~1892
John Lucas	Son	—	2	~1938
Veronica Lucas	Spouse	—	35	~1905

Census Appearances

1920

Rock Island, …

Other, age 27

Rock Island, Illinois · implied b. ~1893 — 6 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Loucas
Given Name	John G.
Relationship to Head	Brother
Sex	M
Color / Race	White
Age	27
Marital Status	Single
Birthplace	Greece
Year of Immigration	1908
Naturalization Status	Alien
Father's Birthplace	Greece
Mother's Birthplace	Greece
Occupation	Salesman
Industry	Confectionery Store
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Greek
Birth Country	Greece
Birthplace (normalized)	greece

1930

Cook, Illinois

Other, age 38

Cook, Illinois · implied b. ~1892 — 2 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Lukas
Given Name	John
Relationship to Head	Lodger
Sex	M
Color / Race	White
Age	38
Marital Status	Married
Birthplace	Greece
Naturalization Status	First papers filed
Year of Immigration	1907
Age at First Marriage	27
Father's Birthplace	Greece
Mother's Birthplace	Greece
Occupation	Salesman
Industry	Fruit
Class of Worker	W
Can Read/Write	Yes
Mother Tongue	Greek
Birth Country	Greece
Birthplace (normalized)	greece

1940

Cook-County, Illinois

Head, age 48

Cook-County, Illinois · implied b. ~1892 — 6 household members

Surname	Lucas
Given Name	John A.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	48
Marital Status	Married
Birthplace	Greece
1935 Residence (City)	Chicago
1935 Residence (County)	Cook
Naturalization Status	Naturalized
Occupation	Chef
Industry	Restaurant
Class of Worker	PW
Hours Worked	72
Income (1939)	640
Highest Grade	H-4
1935 Residence	Same House
Birth Country	Greece
Birthplace (normalized)	greece

Model Tree

Linked across censuses

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

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This person

Anchor record

John Lucas

Head · 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-t0627-01017-00615)

Line	Name	Age	Relation	Occupation	Birthplace
1	Alma M. Williams	38	Head	—	Illinois
2	Margery Williams	12	Daughter	—	Illinois
3	Stanley J. Williams	5	Son	—	Illinois
4	David G. Williams	2	Son	—	Illinois
5	Alfred J. Rippe	58	Head	Bookkeeper	Missouri
6	Laura O. Rippe	48	Wife	—	Illinois
7	Eleanor Runow	45	Daughter	General Office	Illinois
8	Vern H. Clark	42	Head	Motorman	Wisconsin
9	Doris G. Clark	34	Wife	Saleswoman	Georgia
10	James O. Gibbs	27	Lodger	Ticket Agent	Illinois
11	Chester Hawk	72	Lodger	—	Iowa
12	Catherine E. Buddenmeyer	42	Head	Ironer	Indiana
13	Emma L. Buddenmeyer	66	Sister	—	Indiana
14	Matilda Buddenmeyer	48	Sister	Ironer	Indiana
15	Peterson	None	Absent Householder	—	—
16	Nicholas J. Becker	72	Lodger	—	Illinois
17	Ira Minard	66	Head	Salesman	Illinois
18	Clara O. Minard	50	Wife	—	Illinois
19	Robert R. Minard	25	Son	Foreman	Illinois
20	Jane Remer	24	Step-daughter	—	Illinois
21	Mary P. Remer	19	Step-daughter	—	Illinois
22	Rullee E. Bell	35	Head	—	Wisconsin
23	Pauline Miers	54	Lodger	—	Wisconsin
24	Daisy Staley	44	Lodger	Bookkeeper	Indiana
25	George E. Talborn	49	Head	Draftsman	Illinois
26	Xenia J. Talborn	44	Wife	—	Denmark
27	John A. Lucas THIS PERSON	48	Head	Chef	Greece
28	Veronica Lucas	35	Wife	Waitress	Iowa
29	Veronica Lucas	5	Daughter	—	Illinois
30	Helen Lucas	3	Daughter	—	Illinois
31	Jean Lucas	2	Daughter	—	Illinois
32	John Lucas	2	Son	—	Illinois
33	Ray West	36	Head	Salesman	Iowa
34	Mildred R. West	34	Wife	Waitress	Iowa
35	Betty Rae West	12	Daughter	—	Iowa
36	Donald A. West	9	Son	—	Iowa
37	Clarence H. Meaney	43	Head	Handyman-Painter	Pennsylvania
38	Ruth E. Meaney	42	Wife	—	Massachusetts
39	Bonnie Rae Meaney	11	Daughter	—	Illinois
40	Louis Bauer	67	Head	—	Germany

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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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