Florence Nelson — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Cook-County, Illinois

Our Model Tree links this Florence Nelson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1893), then head of a 5-person household.

Age 47 b. ~1893 Female Spouse Born: Illinois Married

1940 Census Record Details

Census Year	1940
Location	Cook-County, Illinois
Surname	Nelson
Given Name	Florence A.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	47
Marital Status	Married
Birthplace	Illinois
1935 Residence (City)	Chicago
Additional Details
Highest Grade	Hs 4
1935 Residence	Illinois
Birth State	Illinois
Birth Country	United States
Birthplace (normalized)	illinois
Township / Ward	Palatine T
Est. Birth Year	~1893

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.

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

Name	Relation to head	Relative to Florence	Age	Birth yr
Marie Nelson	Daughter	—	27	~1913
James Nelson	Head	—	50	~1890
Edward Nelson	Son	—	15	~1925
James Nelson	Son	—	19	~1921
Florence Nelson	Spouse	—	47	~1893

Census Appearances

1920

Cook, Illinois

Spouse, age 26

Cook, Illinois · implied b. ~1894 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Nelson
Given Name	Florence
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	26
Marital Status	Married
Birthplace	Illinois
Father's Birthplace	Sweden
Mother's Birthplace	Sweden
Occupation	none
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Swedish
Birth State	Illinois
Birth Country	United States
Birthplace (normalized)	illinois

1930

Cook, Illinois

Spouse, age 36

Cook, Illinois · implied b. ~1894 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Nelson
Given Name	Florence
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	36
Marital Status	Married
Birthplace	Illinois
Age at First Marriage	24
Father's Birthplace	Sweden
Mother's Birthplace	Sweden
Occupation	none
Can Read/Write	Yes
Birth State	Illinois
Birth Country	United States
Birthplace (normalized)	illinois

1940

Cook-County, Illinois

Spouse, age 47

Cook-County, Illinois · implied b. ~1893 — 5 household members

Surname	Nelson
Given Name	Florence A.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	47
Marital Status	Married
Birthplace	Illinois
1935 Residence (City)	Chicago
Highest Grade	Hs 4
1935 Residence	Illinois
Birth State	Illinois
Birth Country	United States
Birthplace (normalized)	illinois

Model Tree

Linked across censuses

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

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This person

Anchor record

Florence Nelson

Spouse · 1940 · age 47 · b. ~1893 · 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-t0627-00786-00416)

Line	Name	Age	Relation	Occupation	Birthplace
1	Elmer Roper	30	Son	Farm Laborer	Illinois
2	Raymond Roper	23	Son	Farm Laborer	Illinois
3	Harold Roper	22	Son	Farm Laborer	Illinois
4	William Grodwell	59	Head	Farmer	Illinois
5	Louise Grodwell	63	Wife	—	Illinois
6	Wilmer Grodwell	24	Son	Farm Laborer	Illinois
7	Paul J. Markeluesen	50	Head	Photo Engraver	Illinois
8	Charlotte Markeluesen	41	Wife	—	Ohio
9	Burton Duncan	39	Head	Salesman	Ohio
10	Edith Duncan	46	Wife	—	Illinois
11	Burton Jr. Duncan	23	Son	New Worker	Illinois
12	John Duncan	16	Son	—	Illinois
13	Jean Duncan	12	Daughter	—	Illinois
14	Margery Thompson	19	Daughter	—	Illinois
15	Patricia Thompson	0	Granddaughter	—	Illinois
16	Harry Vogel	46	Head	Excavating	Illinois
17	Ida Vogel	40	Wife	—	Illinois
18	Harold Vogel	17	Son	—	Illinois
19	Albert Muehr	39	Head	Machinist	Germany
20	Elsie Muehr	35	Wife	—	Germany
21	Elettie Muehr	6	Daughter	—	Illinois
22	Anne Murray	67	Mother	—	Germany
23	Edward Hansen	74	Head	Elevator Operator	Germany
24	Elsie Hansen	69	Wife	—	Denmark
25	Albert Hansen	45	Son	Farm Laborer	Illinois
26	Peter R. Morse	53	Head	Brick Layer	Minnesota
27	Inger Morse	52	Wife	Clerical Work	Minnesota
28	Anna Morse	78	Mother	—	Minnesota
29	Hilburth Lindquist	31	Head	Poultry Farmer	Illinois
30	Ruth Lindquist	29	Wife	—	Illinois
31	Andrew Lindquist	73	Father	—	Sweden
32	William Foley	75	Head	Poultry Farm	Wisconsin
33	Lawrence Foley	34	Son	—	Wisconsin
34	Bruce Mccauley	35	Head	Poultry Farmer	Indiana
35	Agnes Mccauley	53	Wife	—	England
36	James H. Nelson	50	Head	Auditor	Illinois
37	Florence A. Nelson THIS PERSON	47	Wife	—	Illinois
38	Marie J. Nelson	27	Daughter	Secretary	Illinois
39	James J. Nelson	19	Son	Clerical Work	Illinois
40	Edward M. Nelson	15	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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