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Carl Williams — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Boone-County, Iowa

Our Model Tree links this Carl Williams across the 1930 and 1940 US Censuses in Boone-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1912), then head of a 7-person household.

Age 28 b. ~1912 Male Son Born: Iowa Single

1940 Census Record Details

Census Year1940
LocationBoone-County, Iowa
SurnameWilliams
Given NameCarl
Relationship to HeadSon
SexM
Color / RaceWhite
Age28
Marital StatusSingle
BirthplaceIowa
1935 Residence (City)Worth
1935 Residence (County)Boone
Additional Details
OccupationLaborer
IndustryFarm
Class of WorkerPW
Hours Worked60
Income (1939)266
Highest GradeH-3
1935 ResidenceSame place
Birth StateIowa
Birth CountryUnited States
Birthplace (normalized)iowa
OccupationLaborer
Township / WardWorth
Est. Birth Year~1912

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 Carl Age Birth yr
Vergil Williams Son — 20 ~1920
Betty Williams Daughter — 3 ~1937
Ruby Williams Daughter — 19 ~1921
Donald Williams Son — 12 ~1928
Darlene Williams Daughter — 10 ~1930
Carl Williams Son — 28 ~1912
Grover Williams Head — 51 ~1889

Census Appearances

1930
Boone, Iowa
Other, age 16
Boone, Iowa · implied b. ~1914 — 3 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Williams
Given Name Charles
Relationship to Head Boarder
Sex M
Color / Race White
Age 16
Marital Status Single
Birthplace Iowa
Father's Birthplace Iowa
Mother's Birthplace Iowa
Occupation Laborer
Industry Farm
Class of Worker W
Can Read/Write Yes
Veteran No
Birth State Iowa
Birth Country United States
Birthplace (normalized) iowa
1940
Boone-County, Iowa
Son, age 28
Boone-County, Iowa · implied b. ~1912 — 7 household members
Surname Williams
Given Name Carl
Relationship to Head Son
Sex M
Color / Race White
Age 28
Marital Status Single
Birthplace Iowa
1935 Residence (City) Worth
1935 Residence (County) Boone
Occupation Laborer
Industry Farm
Class of Worker PW
Hours Worked 60
Income (1939) 266
Highest Grade H-3
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 Carl Williams across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Carl Williams
Son · 1940 · age 28 · b. ~1912 · Iowa
★ You are viewing this record
Sibling
Darlene Williams
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Williams
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vergil Williams
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Williams
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruby Williams
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 — Boone-County, Iowa Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01141-00832)

Line Name Age Relation Occupation Birthplace
41 Charles Warren 57 Head Farmer Iowa
42 Grace B Warren 57 Wife — Iowa
43 Guy S Myers 57 Head Farmer Iowa
44 Elizabeth Myers 51 Wife — Iowa
45 James E Day 54 Brother-in-law Laborer Ohio
46 Fred Hill 41 Head Farmer Iowa
47 Bernice Hill 43 Wife — Iowa
48 Howard Hill 19 Son — Iowa
49 Helen Hill 16 Daughter — Iowa
50 Lois Hill 14 Daughter — Iowa
51 Harlan Hill 9 Son — Iowa
52 Ralph Metzman 37 Head Farmer Iowa
53 Cleo Metzman 31 Wife — Iowa
54 Jean Metzman 13 Daughter — Iowa
55 Katharine Metzman 11 Daughter — Iowa
56 Duane Metzman 10 Son — Iowa
57 Grover Williams 51 Head Farmer Iowa
58 Carl Williams THIS PERSON 28 Son Laborer Iowa
59 Vergil Williams 20 Son Farmer Iowa
60 Ruby Williams 19 Daughter — Iowa
61 Donald Williams 12 Son — Iowa
62 Darlene Williams 10 Daughter — Iowa
63 Betty Williams 3 Daughter — Iowa
64 Herbert Mcfarland 33 Head Farmer Iowa
65 Lucille Mcfarland 31 Wife — Illinois
66 David Mcfarland 10 Son — Iowa
67 Joseph Lestina 31 Head Farmer Iowa
68 Ruth Lestina 26 Wife — Iowa
69 Jerry Lestina 5 Son — Iowa
70 Arthur Lestina 1 Son — Iowa
71 Richard Lestina 1 Son — Iowa
72 John Kruck 46 Head Heater Iowa
73 Clara Kruck 51 Wife — Iowa
74 Harrison Seibert 76 Head Farmer Iowa
75 Tyler Seibert 74 Brother Farmer Iowa
76 Forest Brason 51 Head Farmer Iowa
77 Julia Brason 46 Wife — Iowa
78 Lewis Jones 32 Head Farmer Iowa
79 Ruth Jones 30 Wife — Iowa
80 Jerry Jones 5 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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