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John Simon — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Humboldt-County, Iowa

Our Model Tree links this John Simon across the 1930 and 1940 US Censuses in Humboldt-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1915), then head of a 8-person household.

Age 25 b. ~1915 Male Son Born: Iowa Single

1940 Census Record Details

Census Year1940
LocationHumboldt-County, Iowa
SurnameSimon
Given NameJohn
Relationship to HeadSon
SexM
Color / RaceWhite
Age25
Marital StatusSingle
BirthplaceIowa
1935 Residence (City)Humboldt
1935 Residence (County)Humboldt
Additional Details
OccupationClerk
IndustryRailway Station
Class of WorkerPW
Hours Worked48
Income (1939)792
Highest GradeH 4
1935 ResidenceSame Place
Birth StateIowa
Birth CountryUnited States
Birthplace (normalized)iowa
OccupationClerk
Township / WardHumboldt
Est. Birth Year~1915

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.

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

Name Relation to head Relative to John Age Birth yr
Virginia Simon Daughter — 20 ~1920
Bernice Simon Daughter — 16 ~1924
Pauline Simon Daughter — 12 ~1928
Phillip Simon Head — 53 ~1887
John Simon Son — 25 ~1915
Agnes Simon Spouse — 46 ~1894
Jim Simon Son — 8 ~1932
Anna Simon Daughter — 18 ~1922

Census Appearances

1930
Humboldt, Iowa
Son, age 15
Humboldt, Iowa · implied b. ~1915 — 8 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Simon
Given Name John
Relationship to Head son
Sex M
Color / Race White
Age 15
Marital Status Single
Birthplace Iowa
Father's Birthplace Russia
Mother's Birthplace Bohemia
Occupation none
Can Read/Write Yes
Birth State Iowa
Birth Country United States
Birthplace (normalized) iowa
1940
Humboldt-County, Iowa
Son, age 25
Humboldt-County, Iowa · implied b. ~1915 — 8 household members
Surname Simon
Given Name John
Relationship to Head Son
Sex M
Color / Race White
Age 25
Marital Status Single
Birthplace Iowa
1935 Residence (City) Humboldt
1935 Residence (County) Humboldt
Occupation Clerk
Industry Railway Station
Class of Worker PW
Hours Worked 48
Income (1939) 792
Highest Grade H 4
1935 Residence Same Place
Birth State Iowa
Birth Country United States
Birthplace (normalized) iowa

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 John Simon across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Simon
Son · 1940 · age 25 · b. ~1915 · Iowa
★ You are viewing this record
Sibling
Virginia Simon
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Simon
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Pauline Simon
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernice Simon
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jim Simon
Sibling · 1940 · age 8
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 — Humboldt-County, Iowa Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01167-00680)

Line Name Age Relation Occupation Birthplace
1 Phillip M. Simon 53 Head Fireman Russia
2 Agnes Simon 46 Wife — Bohemia
3 John Simon THIS PERSON 25 Son Clerk Iowa
4 Virginia Simon 20 Daughter — Iowa
5 Anna Simon 18 Daughter — Iowa
6 Bernice Simon 16 Daughter — Iowa
7 Pauline Simon 12 Daughter — Iowa
8 Jim Geo. Simon 8 Son — Iowa
9 Clifford Anderson 44 Head Music Teacher Iowa
10 Lela Jane Anderson 32 Wife — Kansas
11 Marilyn Anderson 7 Daughter — Kansas
12 Clifford Jr. Anderson 5 Son — Kansas
13 Edward Smith 76 Lodger — Iowa
14 Harold (W) Smith 23 Lodger — Iowa
15 Ben A. Troxel 40 Head Proprietor Iowa
16 Margaret Troxel 31 Wife — Iowa
17 Marion Troxel 10 Daughter — Iowa
18 Helen Troxel 6 Daughter — Iowa
19 Ben James Troxel 3 Son — Iowa
20 Freda Schipull 30 Lodger Waitress Iowa
21 Stella Schipull 21 Lodger Waitress Iowa
22 Eland Johnson 33 Head Manager Iowa
23 Mayrie Johnson 24 Wife — Iowa
24 Peter Steenson 35 Head Manager Iowa
25 Esther Steenson 27 Wife — Iowa
26 James R. Steenson 3 Son — Iowa
27 Gunvald Sands 21 Head Carpenter Iowa
28 Edna Sands 20 Wife — Minnesota
29 Mary F. Whittman 70 Head — Illinois
30 Willis Whittman 37 Son Electrician Iowa
31 Gerald F. Kennedy 27 Head Plant Manager Iowa
32 Kennedy 24 Wife — Iowa
33 Kennedy 5 Son — Iowa
34 Patricia Ann Kennedy 1 Daughter — Iowa
35 Leonard C. Olsen 34 Head Salesman Iowa
36 Janice Olsen 30 Wife — Iowa
37 Bonnie Ray Olsen 12 Daughter — Iowa
38 Irvin C. Evans 26 Head — Iowa
39 Alvin Evans 25 Wife — Iowa
40 Gerald Evans 7 Son — Iowa

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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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