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John Curtis — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Pondera-County, Montana

Our Model Tree links this John Curtis across the 1930 and 1940 US Censuses in Pondera-County, Montana (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 8-person household.

Age 17 b. ~1923 Male Son Born: North Dakota Single

1940 Census Record Details

Census Year1940
LocationPondera-County, Montana
SurnameCurtis
Given NameJohn
Relationship to HeadSon
SexM
Color / RaceWhite
Age17
Marital StatusSingle
BirthplaceNorth Dakota
1935 Residence (City)Brady
1935 Residence (County)Pondera
Additional Details
Class of WorkerNP
Income (1939)0
Highest GradeHs 1
1935 ResidenceSame place
Birth StateNorth Dakota
Birth CountryUnited States
Birthplace (normalized)north dakota
Township / WardBrady
Est. Birth Year~1923

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
Laura Curtis Daughter — 14 ~1926
Herbert Curtis Head — 55 ~1885
Clayton Curtis Son — 19 ~1921
Alan Curtis Son — 12 ~1928
John Curtis Son — 17 ~1923
David Curtis Son — 21 ~1919
Richard Curtis Son — 10 ~1930
Lillian Curtis Spouse — 51 ~1889

Census Appearances

1930
Pondera, Montana
Son, age 7
Pondera, Montana · implied b. ~1923 — 11 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Curtis
Given Name John L
Relationship to Head Son
Sex M
Color / Race White
Age 7
Marital Status Single
Birthplace North Dakota
Father's Birthplace Michigan
Mother's Birthplace Minnesota
Birth State North Dakota
Birth Country United States
Birthplace (normalized) north dakota
1940
Pondera-County, Montana
Son, age 17
Pondera-County, Montana · implied b. ~1923 — 8 household members
Surname Curtis
Given Name John
Relationship to Head Son
Sex M
Color / Race White
Age 17
Marital Status Single
Birthplace North Dakota
1935 Residence (City) Brady
1935 Residence (County) Pondera
Class of Worker NP
Income (1939) 0
Highest Grade Hs 1
1935 Residence Same place
Birth State North Dakota
Birth Country United States
Birthplace (normalized) north dakota

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 Curtis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Curtis
Son · 1940 · age 17 · b. ~1923 · Montana
★ You are viewing this record
Sibling
Laura Curtis
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alan Curtis
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Curtis
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clayton Curtis
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Curtis
Sibling · 1940 · age 10
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 — Pondera-County, Montana Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02227-00176)

Line Name Age Relation Occupation Birthplace
1 Albert R. Stuart 61 Head Farmer England
2 Neil Stuart 12 Son — Montana
3 Mary Ruth Stuart 10 Daughter — Montana
4 Dorothy Maynard 21 Housekeeper Housekeeper Montana
5 Margaret Britton 68 Head — Canada
6 Maurice Britton 32 Son Farmer Montana
7 John Lienick 71 Head Retired Germany
8 Cecil O. Burdick 49 Head Farmer Rhode Island
9 Martha E. Burdick 51 Wife — Minnesota
10 Merritt A. Burdick 23 Son — Montana
11 Lucille Burdick 17 Daughter — Montana
12 Phyllis Burdick 13 Daughter — Montana
13 Milton Burdick 23 Head Farmer Montana
14 Katherine Burdick 20 Wife — Montana
15 Edward Jr. Weikum 28 Head Farmer Russia
16 Ella Weikum 28 Wife — Montana
17 Harvey Weikum 4 Son — Montana
18 Rudolph Mauer 32 Head Farmer Oklahoma
19 Edna Mauer 28 Wife — Colorado
20 Ronald Lee Mauer 5 Son — Montana
21 Raymond C. Dyer 54 Head Farmer Illinois
22 Nellie M. Dyer 53 Wife — North Dakota
23 Raymond Jr. Dyer 25 Son Farmer Montana
24 Dorothy A. Dyer 21 Daughter — Montana
25 Robert Hellekson 24 Hired Hand Farm Laborer Virginia
26 Herbert Curtis 55 Head Farmer Michigan
27 Lillian Curtis 51 Wife — Minnesota
28 David Curtis 21 Son General Mechanic Montana
29 Clayton Curtis 19 Son Farm Laborer North Dakota
30 John Curtis THIS PERSON 17 Son — North Dakota
31 Laura Curtis 14 Daughter — Montana
32 Alan Curtis 12 Son — Montana
33 Richard Curtis 10 Son — Montana
34 Lyle G. Dyer 24 Head Farmer Montana
35 Annie Dyer 21 Wife — Montana
36 Deanna Dyer 1 Daughter — Montana
37 Oscar Lindens 38 Head Farmer North Dakota
38 Marguerite Mcdonald 18 Housekeeper Housekeeper Montana
39 Knute Fransen 62 Head Farmer Sweden
40 Ruth Armstrong 28 Housekeeper Housekeeper Indiana

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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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