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William Shields — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Cook-County, Illinois

Our Model Tree links this William Shields across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 6-person household.

Age 18 b. ~1922 Male Son Born: Illinois Single

1940 Census Record Details

Census Year1940
LocationCook-County, Illinois
SurnameShields
Given NameWilliam
Relationship to HeadSon
SexM
Color / RaceWhite
Age18
Marital StatusSingle
BirthplaceIllinois
1935 Residence (City)Chicago City
1935 Residence (County)Cook
Additional Details
OccupationLaborer
IndustryHarbor Project
Class of WorkerPW
Hours Worked40
Income (1939)0
Highest GradeNo 8
1935 ResidenceSame House
Birth StateIllinois
Birth CountryUnited States
Birthplace (normalized)illinois
OccupationLaborer
Township / WardChicago City
Est. Birth Year~1922

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
Marion Shields Daughter — 20 ~1920
Harry Shields Son — 15 ~1925
Herbert Shields Son — 22 ~1918
John Shields Son — 18 ~1922
Bertha Shields Head — 51 ~1889
William Shields Son — 18 ~1922

Census Appearances

1930
Cook, Illinois
Son, age 7
Cook, Illinois · implied b. ~1923 — 8 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Shields
Given Name William
Relationship to Head Son
Sex M
Color / Race White
Age 7
Marital Status Single
Birthplace Illinois
Father's Birthplace Ohio
Mother's Birthplace Illinois
Occupation none
Can Read/Write Yes
Birth State Illinois
Birth Country United States
Birthplace (normalized) illinois
1940
Cook-County, Illinois
Son, age 18
Cook-County, Illinois · implied b. ~1922 — 6 household members
Surname Shields
Given Name William
Relationship to Head Son
Sex M
Color / Race White
Age 18
Marital Status Single
Birthplace Illinois
1935 Residence (City) Chicago City
1935 Residence (County) Cook
Occupation Laborer
Industry Harbor Project
Class of Worker PW
Hours Worked 40
Income (1939) 0
Highest Grade No 8
1935 Residence Same House
Birth State Illinois
Birth Country United States
Birthplace (normalized) illinois

Model Tree

An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Linked across censuses
Our Model Tree links William Shields across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Shields
Son · 1940 · age 18 · b. ~1922 · Illinois
★ You are viewing this record
Sibling
Marion Shields
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herbert Shields
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Shields
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Shields
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
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

37 people indexed on this census page (nara:1940:m-t0627-00941-00481)

Line Name Age Relation Occupation Birthplace
1 Julius Laskowski 52 Head Boiler Maker Minnesota
2 Jeanette Laskowski 35 Wife — Illinois
3 Irwin Laskowski 13 Son — Illinois
4 Walter Laskowski 11 Son — Illinois
5 Leonard Laskowski 9 Daughter — Illinois
6 Elaine Laskowski 7 Daughter — Illinois
7 John Laskowski 5 Son — Illinois
8 Charles Blomquist 73 Head — Sweden
9 Lillie Blomquist 63 Wife — Germany
11 Bertha Shields 51 Head — Illinois
12 Herbert Shields 22 Son Laborer Illinois
13 Marion Shields 20 Daughter — Illinois
14 William Shields THIS PERSON 18 Son Laborer Illinois
15 John Shields 18 Son Laborer Illinois
16 Harry Shields 15 Son — Illinois
17 Michael Nielsen 45 Head Electrician Iowa
18 Ella Nielsen 44 Wife — Illinois
19 Michael Jr Nielsen 20 Son Apprentice Iowa
20 June M Nielsen 17 Daughter — Iowa
21 Arthur B Paquette 43 Head Air Conditioner Illinois
22 Ruth A Paquette 43 Wife — Missouri
23 Arthur Jr Paquette 19 Son Welder Missouri
24 Kenneth Paquette 16 Son — Illinois
25 Cornelia Hunter 59 Head — Illinois
26 Charles Griffing 88 Father — Vermont
27 Mary E Griffing 84 Mother — New York
28 Francis W Griffing 84 Uncle — Connecticut
29 Angelo W Roberti 34 Head Fruit Vendor South America
30 Lillian Roberti 32 Wife — Michigan
31 Robert A Roberti 6 Son — Illinois
32 Eugene A Roberti 4 Son — Illinois
34 John Pope 42 Head Laborer Roumania
35 Anne Pope 48 Wife — Yugoslavia
36 Lenore Pope 13 Daughter — Illinois
37 Dorothy Pope 10 Daughter — Illinois
38 Dan Pritzel 60 Brother-in-law Barber Yugoslavia
40 Chris M Nelson 67 Head — Wisconsin

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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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