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Walter Thomas — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Marion-County, Iowa

Our Model Tree links this Walter Thomas across the 1920, 1930 and 1940 US Censuses in Marion-County, Iowa (XGBoost, ~Confirmed), with identified parents J & May — first a head (b.~1909), then head of a 6-person household.

Age 31 b. ~1909 Male Head Born: Iowa Married

1940 Census Record Details

Census Year1940
LocationMarion-County, Iowa
SurnameThomas
Given NameWalter
Relationship to HeadHead
SexM
Color / RaceWhite
Age31
Marital StatusMarried
BirthplaceIowa
1935 Residence (City)Unincorporated
1935 Residence (County)Marion
Additional Details
OccupationMiner
IndustryCoal
Class of WorkerPW
Hours Worked3
Income (1939)425
Highest GradeNo 8
1935 ResidenceSame place
Birth StateIowa
Birth CountryUnited States
Birthplace (normalized)iowa
OccupationMiner
Township / WardUnincorporated
Est. Birth Year~1909

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.

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

Name Relation to head Relative to Walter Age Birth yr
Lillie Voris Daughter — 7 ~1933
Walter Thomas Head — 31 ~1909
Hurl Thomas Other — 21 ~1919
Charles Thomas Son — 2 ~1938
Donald Voris Son — 11 ~1929
Adelline Thomas Spouse — 24 ~1916

Census Appearances

1920
Marion, Iowa
Son, age 11
Marion, Iowa · implied b. ~1909 — 7 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Thomas
Given Name Walter
Relationship to Head Son
Sex M
Color / Race White
Age 11
Marital Status Single
Birthplace Iowa
Father's Birthplace England
Mother's Birthplace Illinois
Can Read Yes
Can Write Yes
Speaks English Yes
Birth State Iowa
Birth Country United States
Birthplace (normalized) iowa
1930
Marion, Iowa
Son, age 21
Marion, Iowa · implied b. ~1909 — 3 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Thomas
Given Name Walter
Relationship to Head Son
Sex M
Color / Race White
Age 21
Marital Status Single
Birthplace Iowa
Father's Birthplace England
Mother's Birthplace Illinois
Occupation Laborer
Industry Foundry
Class of Worker W
Can Read/Write Yes
Birth State Iowa
Birth Country United States
Birthplace (normalized) iowa
1940
Marion-County, Iowa
Head, age 31
Marion-County, Iowa · implied b. ~1909 — 6 household members
Surname Thomas
Given Name Walter
Relationship to Head Head
Sex M
Color / Race White
Age 31
Marital Status Married
Birthplace Iowa
1935 Residence (City) Unincorporated
1935 Residence (County) Marion
Occupation Miner
Industry Coal
Class of Worker PW
Hours Worked 3
Income (1939) 425
Highest Grade No 8
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.
Model Tree available
Our Model Tree links Walter Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father J Thomas (~0.92 confidence) and mother May Thomas (~0.92 confidence) and mother Mae Thomas (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1 Parents confidence ≈ 0.92
Father
J Thomas
b. ~1866
Source father
● Household · direct · ~0.92
Mother
May Thomas
b. ~1873
Source mother
● Household · direct · ~0.92
Mother
Mae Thomas
b. ~1876
Source mother
● Household · direct · ~0.92
This person
Anchor record
Walter Thomas
Head · 1940 · age 31 · b. ~1909 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1940 US Federal Census — Marion-County, Iowa Open full size

Page Contents

36 people indexed on this census page (nara:1940:m-t0627-01181-00310)

Line Name Age Relation Occupation Birthplace
41 Charles Talbott 63 Lodger — Ark.
42 James Manix 66 Head Laborer Iowa
43 John Manix 74 Brother — Iowa
44 Margaret Manix 61 Sister — Iowa
45 Walter Thomas THIS PERSON 31 Head Miner Iowa
46 Adelline Thomas 24 Wife — Tenn.
47 Charles Thomas 2 Son — Iowa
48 Hurl Ends Thomas 21 Brother — Iowa
49 Donald Voris 11 Son — Iowa
50 Lillie Eileen Voris 7 Daughter — Iowa
51 Robert Post 52 Head W.P.A. Tenn.
52 Elizabeth Post 42 Wife — Iowa
53 Helen Post 13 Daughter — Iowa
54 Howard Post 12 Son — Iowa
55 Kenneth Post 10 Son — Iowa
56 Jesse Post 4 Son — Iowa
57 James R. Moon 60 Head Proprietor Ind.
58 Florence Moon 59 Wife — Ind.
59 Edwin Moon 26 Son — Iowa
60 Leland Moon 12 Son — Iowa
61 Forest Pope 27 Head Helper Iowa
62 Daphine Pope 26 Wife — Iowa
63 Larry Melvin Pope 4 Son — Iowa
64 James Post 62 Head — Iowa
65 Wilma Post 23 Daughter Sten Iowa
66 Plenie Moon 36 Head — Ind.
67 Jessie Moon 32 Wife — Iowa
68 Lester Moon 14 Son — Iowa
69 Doris Moon 12 Daughter — Iowa
70 Alberta Moon 8 Daughter — Iowa
71 Elwood Thompson 26 Head Mason Iowa
72 Frances Thompson 23 Wife Mason Iowa
73 Bobby Lee Thompson 4 Son — Iowa
74 John Glad 32 Head Miner Iowa
75 Cleona Glad 21 Wife — Iowa
76 Dick Smith 60 Head Miner Iowa

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Pedigree Summary

Walter
Gen 1 · 3 parents ~0.92
Max depth 4 (1900–1950 window)

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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