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Betty Nelson — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Cook-County, Illinois

Our Model Tree links this Betty Nelson across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 7-person household.

Age 15 b. ~1925 Female Daughter Born: Illinois Single

1940 Census Record Details

Census Year1940
LocationCook-County, Illinois
SurnameNelson
Given NameBetty Jane
Relationship to Headdaughter
SexF
Color / RaceWhite
Age15
Marital StatusSingle
BirthplaceIllinois
1935 Residence (City)Berwyn City
1935 Residence (County)Cook
Additional Details
Class of Worker0
Hours Worked0
Highest GradeHs 1
1935 ResidenceSame place
Birth StateIllinois
Birth CountryUnited States
Birthplace (normalized)illinois
Township / WardBerwyn City
Est. Birth Year~1925

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.

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

Name Relation to head Relative to Betty Age Birth yr
John Nelson Son — 7 ~1933
Arthur Nelson Head — 42 ~1898
Arthur Nelson Son — 5 ~1935
Betty Nelson Daughter — 15 ~1925
Charles Nelson Son — 17 ~1923
Robert Nelson Son — 19 ~1921
Florence Nelson Spouse — 43 ~1897

Census Appearances

1930
Cook, Illinois
Daughter, age 4
Cook, Illinois · implied b. ~1926 — 5 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Nelson
Given Name Betty J.
Relationship to Head Daughter
Sex F
Color / Race White
Age 4
Marital Status Single
Birthplace Illinois
Father's Birthplace Illinois
Mother's Birthplace Michigan
Birth State Illinois
Birth Country United States
Birthplace (normalized) illinois
1940
Cook-County, Illinois
Daughter, age 15
Cook-County, Illinois · implied b. ~1925 — 7 household members
Surname Nelson
Given Name Betty Jane
Relationship to Head daughter
Sex F
Color / Race White
Age 15
Marital Status Single
Birthplace Illinois
1935 Residence (City) Berwyn City
1935 Residence (County) Cook
Class of Worker 0
Hours Worked 0
Highest Grade Hs 1
1935 Residence Same place
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 Betty Nelson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Betty Nelson
Daughter · 1940 · age 15 · b. ~1925 · Illinois
★ You are viewing this record
Sibling
Charles Nelson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Nelson
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Nelson
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Nelson
Sibling · 1940 · age 19
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

40 people indexed on this census page (nara:1940:m-t0627-00772-00579)

Line Name Age Relation Occupation Birthplace
1 Lillian Stasney 44 wife Dentist Illinois
2 Gordon Stasney 13 son — Illinois
3 Arthur Nelson 42 head Lawyer Illinois
4 Florence Nelson 43 wife — Illinois
5 Robert H Nelson 19 son — Illinois
6 Charles A Nelson 17 son — Illinois
7 Betty Jane Nelson THIS PERSON 15 daughter — Illinois
8 John Nelson 7 son — Illinois
9 Arthur Nelson 5 son — Illinois
10 Harry Johnathan 59 head Office Manager England
11 Norton Johnathan 26 son Auditor Illinois
12 Richard Johnathan 22 son Office Clerk Illinois
13 Margaret Johnathan 57 sister — England
14 Estella Alter 34 maid Housekeeper Illinois
15 Virgil Stevens 57 head Doctor Illinois
16 Mabel Stevens 52 wife — Michigan
17 Beth Stevens 20 daughter — Illinois
18 Clara Le Baron 84 mother — Wisconsin
19 Marie Wirth 20 maid Housekeeper Germany
20 Ralph Evans 43 head Broker Illinois
21 Irene Evans 44 wife — Illinois
22 Marjorie Evans 17 daughter — Illinois
23 Arthur Evans 14 son — Illinois
24 Howard Evans 10 son — Illinois
25 Christina Dunham 72 head — Illinois
26 Ben Branch 70 head — England
27 June Branch 65 wife — Illinois
28 Henry A Sellen 65 head Executive Wisconsin
29 Elsie Sellen 64 wife — Wisconsin
30 Katherine Shean 72 head — Ohio
31 Mabel Shean 46 niece Statistical Clerk Illinois
32 Katherine White 59 lodger — Illinois
33 Ellen Terresyn 22 maid Housekeeper Minnesota
34 Warren Chandler 48 head Salesman Illinois
35 Clara Chandler 45 wife — Illinois
36 William Heuser 48 lodger Music Teacher Michigan
37 John Mcmahon 42 head President Wisconsin
38 Marie Mcmahon 39 wife Telegrapher Illinois
39 Donald Mcmahon 16 son — Illinois
40 Marilyn Mcmahon 10 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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