William Kelly — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Cook-County, Illinois

Our Model Tree links this William Kelly across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1883), then head of a 6-person household.

Age 57 b. ~1883 Male Head Born: Ireland Married

1940 Census Record Details

Census Year	1940
Location	Cook-County, Illinois
Surname	Kelly
Given Name	William
Relationship to Head	Head
Sex	M
Color / Race	White
Age	57
Marital Status	Married
Birthplace	Ireland
1935 Residence (City)	Winnetka village
1935 Residence (County)	Cook
Naturalization Status	Naturalized
Additional Details
Occupation	Pipeman
Industry	Gas Company
Class of Worker	PW
Hours Worked	40
Income (1939)	1320
Highest Grade	No 8
1935 Residence	Same place
Birth Country	Ireland
Birthplace (normalized)	ireland
Occupation	Pipeman
Township / Ward	Winnetka Village
Est. Birth Year	~1883

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 William	Age	Birth yr
Margaret Kelly	Daughter	—	25	~1915
Mary Kelly	Daughter	—	15	~1925
William Kelly	Head	—	57	~1883
William Kelly	Son	—	22	~1918
James Kelly	Son	—	27	~1913
Mary Kelly	Spouse	—	43	~1897

Census Appearances

1920

Cook, Illinois

Head, age 38

Cook, Illinois · implied b. ~1882 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Kelly
Given Name	William
Relationship to Head	Head
Sex	M
Color / Race	White
Age	38
Marital Status	Married
Birthplace	Ireland
Year of Immigration	1903
Naturalization Status	Naturalized
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Occupation	Fireman
Industry	City
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	English
Home Owned/Rented	R
Birth Country	Ireland
Year of Naturalization	1909
Birthplace (normalized)	ireland

1930

Cook, Illinois

Head, age 49

Cook, Illinois · implied b. ~1881 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Kelly
Given Name	Willie
Relationship to Head	Head
Sex	M
Color / Race	Black
Age	49
Marital Status	Married
Birthplace	Ireland
Age at First Marriage	8881
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Occupation	Teamster
Industry	Teaming Co
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	$15.00
Veteran	R
Birth Country	Ireland
Birthplace (normalized)	ireland

1940

Cook-County, Illinois

Head, age 57

Cook-County, Illinois · implied b. ~1883 — 6 household members

Surname	Kelly
Given Name	William
Relationship to Head	Head
Sex	M
Color / Race	White
Age	57
Marital Status	Married
Birthplace	Ireland
1935 Residence (City)	Winnetka village
1935 Residence (County)	Cook
Naturalization Status	Naturalized
Occupation	Pipeman
Industry	Gas Company
Class of Worker	PW
Hours Worked	40
Income (1939)	1320
Highest Grade	No 8
1935 Residence	Same place
Birth Country	Ireland
Birthplace (normalized)	ireland

Model Tree

Linked across censuses

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

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This person

Anchor record

William Kelly

Head · 1940 · age 57 · b. ~1883 · 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-t0627-00783-00742)

Line	Name	Age	Relation	Occupation	Birthplace
1	William Kelly THIS PERSON	57	Head	Pipeman	Ireland
2	Mary Kelly	43	Wife	—	Ireland
3	James Kelly	27	Son	Truck Driver	Illinois
4	Margaret Kelly	25	Daughter	Bookkeeper	Illinois
5	William Kelly	22	Son	Clerk	Illinois
6	Mary Kelly	15	Daughter	—	Illinois
7	Richard Carroll	29	Head	Salesman	Wisconsin
8	Alta D. Carroll	29	Wife	—	Illinois
9	Linda Carroll	1	Daughter	—	Illinois
10	Genevieve Smith	21	Maid	Maid	New York
11	Raymond Ray	46	Head	Proprietor	Ohio
12	Ruth Ray	44	Wife	—	Illinois
13	Raymond Ray	16	Son	—	Illinois
14	George Ray	14	Son	—	Illinois
15	Richard Ray	8	Son	—	Illinois
16	Barbara Ray	6	Daughter	—	Illinois
17	Donald Ray	3	Son	—	Illinois
18	John I. Belmont	32	Head	Salesman	Italy
19	Elizabeth Belmont	30	Wife	—	Illinois
20	John R. Belmont	1	Son	—	Illinois
21	John Belter	35	Head	Teller	Illinois
22	Erna S. Belter	33	Wife	—	Illinois
23	Marilyn Belter	2	Daughter	—	Illinois
24	Joseph Novak	49	Head	Gardener	Czechoslovakia
25	Mary Novak	45	Wife	—	Czechoslovakia
26	Lillian Novak	22	Daughter	—	Illinois
27	Jerry Novak	19	Son	—	Illinois
28	Mahlon Sharp	52	Head	Artist	Indiana
29	Olive Sharp	49	Wife	—	Minnesota
30	Dexter (Ab) Sharp	20	Son	—	Illinois
31	James Sharp	12	Son	—	Illinois
32	Jennie Smith	78	Mother-in-law	—	Norway
33	Nels Anderson	45	Head	Owner	Sweden
34	Esther Anderson	47	Wife	—	Sweden
35	Marshall Anderson	19	Son	—	Illinois
36	Paul Applegate	36	Head	Director Of Field Service	Maine
37	Dorothy Applegate	37	Wife	—	New Jersey
38	Carroll Haskell	38	Head	Mailcarrier	Wisconsin
39	Ruth Haskell	38	Wife	—	Wisconsin
40	Carol Haskell	14	Daughter	—	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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