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John Crowley — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Kossuth-County, Iowa

Our Model Tree links this John Crowley across the 1930 and 1940 US Censuses in Kossuth-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 7-person household.

Age 21 b. ~1919 Male Son Born: Iowa Single

1940 Census Record Details

Census Year1940
LocationKossuth-County, Iowa
SurnameCrowley
Given NameJohn V
Relationship to HeadSon
SexM
Color / RaceWhite
Age21
Marital StatusSingle
BirthplaceIowa
1935 Residence (City)R
1935 Residence (County)Kossuth
Additional Details
OccupationFarm laborer
IndustryFarm
Class of WorkerPW
Hours Worked60
Income (1939)195
Highest GradeHs 4
1935 ResidenceIowa
Birth StateIowa
Birth CountryUnited States
Birthplace (normalized)iowa
OccupationFarm Laborer
Township / WardSeneca Twp
Est. Birth Year~1919

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 John Age Birth yr
Joseph Crowley Son — 13 ~1927
Leo Crowley Son — 23 ~1917
Paul Crowley Son — 28 ~1912
John Crowley Son — 21 ~1919
Joseph Crowley Head — 52 ~1888
Loretta Crowley Daughter — 18 ~1922
Ella Crowley Spouse — 55 ~1885

Census Appearances

1930
Kossuth, Iowa
Son, age 10
Kossuth, Iowa · implied b. ~1920 — 8 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Crowley
Given Name John W.
Relationship to Head Son
Sex M
Color / Race White
Age 10
Marital Status Single
Birthplace Iowa
Father's Birthplace Iowa
Mother's Birthplace Iowa
Can Read/Write Yes
Birth State Iowa
Birth Country United States
Birthplace (normalized) iowa
1940
Kossuth-County, Iowa
Son, age 21
Kossuth-County, Iowa · implied b. ~1919 — 7 household members
Surname Crowley
Given Name John V
Relationship to Head Son
Sex M
Color / Race White
Age 21
Marital Status Single
Birthplace Iowa
1935 Residence (City) R
1935 Residence (County) Kossuth
Occupation Farm laborer
Industry Farm
Class of Worker PW
Hours Worked 60
Income (1939) 195
Highest Grade Hs 4
1935 Residence Iowa
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 Crowley across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Crowley
Son · 1940 · age 21 · b. ~1919 · Iowa
★ You are viewing this record
Sibling
Leo Crowley
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Crowley
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Loretta Crowley
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Crowley
Sibling · 1940 · age 13
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 — Kossuth-County, Iowa Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01173-00664)

Line Name Age Relation Occupation Birthplace
1 Jeannette M Mahaney 5 Daughter — Iowa
2 Shirley R Mahaney 3 Daughter — Iowa
3 Joseph D Crowley 52 Head Farmer Iowa
4 Ella M Crowley 55 Wife — Iowa
5 Paul G Crowley 28 Son Farm Laborer Iowa
6 Leo F Crowley 23 Son Farm Laborer Iowa
7 John V Crowley THIS PERSON 21 Son Farm Laborer Iowa
8 Loretta M Crowley 18 Daughter — Iowa
9 Joseph F Crowley 13 Son — Iowa
10 Iver O Halverson 66 Head Farmer Iowa
11 Hilfa C Halverson 59 Wife — Norway
12 Robert A Halverson 22 Son Farm Laborer Iowa
13 Charles W Osborn 41 Head Farmer Iowa
14 Ester M Osborn 41 Wife — Iowa
15 Marjorie M Osborn 14 Daughter — Iowa
16 James W Osborn 3 Son — Iowa
17 Henry E Scott 34 Head Farmer Iowa
18 Verna N Scott 38 Wife — Iowa
19 John H Scott 8 Son — Iowa
20 Richard D Scott 5 Son — Iowa
21 David S Scott 1 Son — Iowa
22 Carl Schultz 22 Hired Hand Farm Laborer North Dakota
23 Lester L Osborn 38 Head Farmer Iowa
24 Leona Osborn 37 Wife — South Dakota
25 William H Osborn 73 Father — Iowa
26 Letta Osborn 67 Step mother — Iowa
27 Otto G Wilberg 39 Head Farmer Iowa
28 Helen J Wilberg 32 Wife — Iowa
29 Ione A Wilberg 12 Daughter — Iowa
30 Delores M Wilberg 8 Daughter — Iowa
31 Lyle B Osborn 31 Hired Hand Farm Laborer Iowa
32 Earl P Osborn 35 Head Farmer Iowa
33 Ethel S Osborn 23 Wife — Illinois
34 Arilona A Osborn 4 Daughter — Iowa
35 Bruce H Osborn 0 Son — Iowa
36 Miller J Jensen 46 Head Farmer Iowa
37 Blanche Jensen 34 Wife — Iowa
38 Margaret G Jensen 5 Daughter — Iowa
39 William S Jensen 4 Son — Iowa
40 Blaine L Jensen 2 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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