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Barbara Smith — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Polk-County, Iowa

Our Model Tree links this Barbara Smith across the 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 11-person household.

Age 16 b. ~1924 Female Daughter Born: Iowa Single

1940 Census Record Details

Census Year1940
LocationPolk-County, Iowa
SurnameSmith
Given NameBarbara
Relationship to HeadDaughter
SexF
Color / RaceWhite
Age16
Marital StatusSingle
BirthplaceIowa
1935 Residence (City)Des Moines City
1935 Residence (County)Polk
Additional Details
Highest GradeHs 2
1935 ResidenceSame place
Birth StateIowa
Birth CountryUnited States
Birthplace (normalized)iowa
Township / WardDes Moines City
Est. Birth Year~1924

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.

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

Name Relation to head Relative to Barbara Age Birth yr
Paula Smith Daughter — 12 ~1928
Barbara Smith Daughter — 16 ~1924
Nancy Smith Daughter — 9 ~1931
Ida Smith Daughter — 10 ~1930
Jeanette Smith Daughter — 14 ~1926
Luther Smith Head — 60 ~1880
Lafayette Smith Son — 19 ~1921
Thomas Smith Son — 7 ~1933
Howard Smith Son — 17 ~1923
Guy Smith Son — 21 ~1919
Ida Smith Spouse — 42 ~1898

Census Appearances

1930
Polk, Iowa
Daughter, age 6
Polk, Iowa · implied b. ~1924 — 9 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Smith
Given Name Barbara A.
Relationship to Head Daughter
Sex F
Color / Race White
Age 6
Marital Status Single
Birthplace Iowa
Father's Birthplace New York
Mother's Birthplace Iowa
Birth State Iowa
Birth Country United States
Birthplace (normalized) iowa
1940
Polk-County, Iowa
Daughter, age 16
Polk-County, Iowa · implied b. ~1924 — 11 household members
Surname Smith
Given Name Barbara
Relationship to Head Daughter
Sex F
Color / Race White
Age 16
Marital Status Single
Birthplace Iowa
1935 Residence (City) Des Moines City
1935 Residence (County) Polk
Highest Grade Hs 2
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 Barbara Smith across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Barbara Smith
Daughter · 1940 · age 16 · b. ~1924 · Iowa
★ You are viewing this record
Sibling
Thomas Smith
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Guy Smith
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jeanette Smith
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ida Smith
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Howard Smith
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paula Smith
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nancy Smith
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lafayette Smith
Sibling · 1940 · age 19
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 — Polk-County, Iowa Open full size

Page Contents

38 people indexed on this census page (nara:1940:m-t0627-01194-00778)

Line Name Age Relation Occupation Birthplace
41 George H. Nicholls 41 Head Janitor Missouri
42 Elsie Nicholls 39 Wife — Missouri
43 George Jr. Nicholls 9 Son — Iowa
44 Albert Hall 30 Head Recreational Iowa
45 Azwayah Hall 24 Wife — Oklahoma
46 Rosabelle Hall 10 Daughter — Iowa
47 Roy White 57 Head Laborer Missouri
48 Leroy White 21 Son Washman Iowa
49 Edgar Williams 62 Head Cook Binder Iowa
50 Minnie Williams 57 Wife — Kansas
51 R. O. Willard 65 Head Laborer Kentucky
52 Mae Willard 43 Wife — Iowa
53 Juanita Willard 10 Daughter — Iowa
54 Luther Smith 60 Head Stamps New York
55 Ida Smith 42 Wife — Iowa
56 Guy W. Smith 21 Son Porter Iowa
57 Lafayette Smith 19 Son — Iowa
58 Howard Smith 17 Son — Iowa
59 Barbara Smith THIS PERSON 16 Daughter — Iowa
60 Jeanette Smith 14 Daughter — Iowa
61 Paula Smith 12 Daughter — Iowa
62 Ida M. Smith 10 Daughter — Iowa
63 Nancy Smith 9 Daughter — Iowa
64 Thomas Smith 7 Son — Iowa
65 Eva Trafler 63 Head On Direct Relief Iowa
66 George Trafler 17 Son — Illinois
67 Gladys Bettel 49 Head Street Dept Iowa
68 Gladys Bettel 46 Wife — Iowa
69 Wilma Bettel 14 Daughter — Iowa
71 Alice Evans 65 Head — Iowa
72 Clara Evans 60 Sister — Iowa
73 Mary Davis 69 Head — Indiana
74 John Davis 45 Nephew Homework Iowa
75 George Hutchinson 56 Head Laborer England
76 Maybelle Hutchinson 57 Wife — Iowa
77 Robert Hopkins 26 Head — Kentucky
78 L. S. Wilkinson 63 Head Janitor Illinois
79 Ida Mae Wilkinson 34 Wife — Arkansas

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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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