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Alvin Johnson — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Chickasaw-County, Iowa

Our Model Tree links this Alvin Johnson across the 1930 and 1940 US Censuses in Chickasaw-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 8-person household.

Age 11 b. ~1929 Male Son Born: Iowa Single

1940 Census Record Details

Census Year1940
LocationChickasaw-County, Iowa
SurnameJohnson
Given NameAlvin S
Relationship to HeadSon
SexM
Color / RaceWhite
Age11
Marital StatusSingle
BirthplaceIowa
1935 Residence (City)Jacksonville Township
1935 Residence (County)Chickasaw
Additional Details
Highest GradeNo 5
1935 ResidenceSame place
Birth StateIowa
Birth CountryUnited States
Birthplace (normalized)iowa
Township / WardJacksonville Township
Est. Birth Year~1929

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 Alvin Age Birth yr
Ole Johnson Head — 43 ~1897
Donald Johnson Son — 14 ~1926
Sophia Johnson Spouse — 43 ~1897
Gladys Johnson Daughter — 19 ~1921
Shirley Johnson Daughter — 8 ~1932
Lorraine Johnson Daughter — 6 ~1934
Jean Johnson Daughter — 3 ~1937
Alvin Johnson Son — 11 ~1929

Census Appearances

1930
Chickasaw, Iowa
Son, age 1
Chickasaw, Iowa · implied b. ~1929 — 29 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Johnson
Given Name Alvin
Relationship to Head Son
Sex M
Color / Race White
Age 1
Marital Status Single
Birthplace Iowa
Father's Birthplace Iowa
Mother's Birthplace Iowa
Birth State Iowa
Birth Country United States
Birthplace (normalized) iowa
1940
Chickasaw-County, Iowa
Son, age 11
Chickasaw-County, Iowa · implied b. ~1929 — 8 household members
Surname Johnson
Given Name Alvin S
Relationship to Head Son
Sex M
Color / Race White
Age 11
Marital Status Single
Birthplace Iowa
1935 Residence (City) Jacksonville Township
1935 Residence (County) Chickasaw
Highest Grade No 5
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 Alvin Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Alvin Johnson
Son · 1940 · age 11 · b. ~1929 · Iowa
★ You are viewing this record
Sibling
Jean Johnson
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lorraine Johnson
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Johnson
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gladys Johnson
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Johnson
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 — Chickasaw-County, Iowa Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01147-00872)

Line Name Age Relation Occupation Birthplace
1 Arthur A Nystel 25 Son Farm Laborer Iowa
2 Edward O Nystel 21 Son Farm Laborer Iowa
3 Kenneth S Nystel 18 Son Farm Laborer Iowa
4 Lyon N Nystel 14 Son Farm Laborer Iowa
5 Evelyn S Nystel 12 Daughter — Iowa
6 Hazel N Nystel 9 Daughter — Iowa
7 Morris E Nystel 7 Daughter — Iowa
8 Raymond B Nystel 4 Son — Iowa
9 Einar M Lakang 37 Head Farmer Norway
10 Hansene O Lakang 33 Wife — Iowa
11 Hiram N Lakang 9 Son — Iowa
12 Ida B. A. Lakang 7 Daughter — Iowa
13 Elaine H Lakang 5 Daughter — Iowa
14 Loren L Lakang 1 Son — Iowa
15 Lloyd D Scholl 27 Head Farmer Iowa
16 Marietta Scholl 24 Wife — Iowa
17 Clyde D Scholl 1 Son — Iowa
18 Ole S Johnson 43 Head Farmer Iowa
19 Sophia B. O Johnson 43 Wife — Iowa
20 Gladys M Johnson 19 Daughter Office Iowa
21 Donald A Johnson 14 Son Farm Iowa
22 Alvin S Johnson THIS PERSON 11 Son — Iowa
23 Shirley A Johnson 8 Daughter — Iowa
24 Lorraine L Johnson 6 Daughter — Iowa
25 Jean R Johnson 3 Daughter — Iowa
26 Cynthia E Eabrew 77 Head — Iowa
27 John O Eabrew 46 Son Farmer Iowa
28 Ray J Eabrew 43 Son Farmer Iowa
29 Irene B Gordon 40 Housemaid Housekeeper Iowa
30 Norman T Vidal 24 Head Farmer Iowa
31 Amanda L. O Vidal 23 Wife — North Dakota
32 Lee N Vidal 2 Son — Iowa
33 Donald M. O Norgard 22 Head Farmer Iowa
34 Elenora L Norgard 23 Wife — South Dakota
35 Henry A Halvorson 50 Head Farmer Iowa
36 Anna A. O Halvorson 44 Wife — Iowa
37 Arthur H Halvorson 16 Son Student Iowa
38 Joanne L Halvorson 14 Daughter Student Iowa
39 Anna Mae Halvorson 11 Daughter Student Iowa
40 Bernard A Halvorson 8 Son Student 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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