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William Lucas — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Marion-County, Ohio

Our Model Tree links this William Lucas across the 1930 and 1940 US Censuses in Marion-County, Ohio (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 12-person household.

Age 15 b. ~1925 Male Son Born: Ohio Single

1940 Census Record Details

Census Year1940
LocationMarion-County, Ohio
SurnameLucas
Given NameWilliam R
Relationship to HeadSon
SexM
Color / RaceWhite
Age15
Marital StatusSingle
BirthplaceOhio
1935 Residence (City)Grand Prairie
1935 Residence (County)Marion
Additional Details
Income (1939)0
Highest GradeH 1
1935 ResidenceOhio
Birth StateOhio
Birth CountryUnited States
Birthplace (normalized)ohio
Township / WardGrand Prairie
Est. Birth Year~1925

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.

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

Name Relation to head Relative to William Age Birth yr
Marjorie Lucas Daughter — 2 ~1938
Elenore Lucas Daughter — 19 ~1921
Vern Lucas Head — 40 ~1900
Thomas Mason Other — 86 ~1854
Lucile Noyes Other — 42 ~1898
William Lucas Son — 15 ~1925
Robert Lucas Son — 12 ~1928
Delmer Lucas Son — ~1940
Glenn Lucas Son — 9 ~1931
John Lucas Son — 4 ~1936
Alfred Lucas Son — 6 ~1934
Helen Lucas Spouse — 37 ~1903

Census Appearances

1930
Marion, Ohio
Son, age 5
Marion, Ohio · implied b. ~1925 — 5 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Lucas
Given Name William R.
Relationship to Head Son
Sex M
Color / Race White
Age 5
Marital Status Single
Birthplace Ohio
Father's Birthplace Ohio
Mother's Birthplace Ohio
Birth State Ohio
Birth Country United States
Birthplace (normalized) ohio
1940
Marion-County, Ohio
Son, age 15
Marion-County, Ohio · implied b. ~1925 — 12 household members
Surname Lucas
Given Name William R
Relationship to Head Son
Sex M
Color / Race White
Age 15
Marital Status Single
Birthplace Ohio
1935 Residence (City) Grand Prairie
1935 Residence (County) Marion
Income (1939) 0
Highest Grade H 1
1935 Residence Ohio
Birth State Ohio
Birth Country United States
Birthplace (normalized) ohio

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 William Lucas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Lucas
Son · 1940 · age 15 · b. ~1925 · Ohio
★ You are viewing this record
Sibling
Elenore Lucas
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Delmer Lucas
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marjorie Lucas
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Lucas
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Glenn Lucas
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Lucas
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alfred Lucas
Sibling · 1940 · age 6
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 — Marion-County, Ohio Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-03110-00107)

Line Name Age Relation Occupation Birthplace
41 Vern V Lucas 40 Head Farmer Ohio
42 Helen M Lucas 37 Wife — Ohio
43 Elenore M Lucas 19 Daughter — Ohio
44 William R Lucas THIS PERSON 15 Son — Ohio
45 Robert V Lucas 12 Son — Ohio
46 Glenn E Lucas 9 Son — Ohio
47 Alfred D Lucas 6 Son — Ohio
48 John G Lucas 4 Son — Ohio
49 Marjorie J Lucas 2 Daughter — Ohio
50 Delmer F Lucas 0 Son — Ohio
51 Thomas Mason 86 Uncle — Ohio
52 Lucile Noyes 42 Nurse Practical Nurse Ohio
53 Dwight Myer 58 Head Farmer Ohio
54 Margueriete Myer 57 Wife — Ohio
55 William A Lucas 75 Head Farmer Ohio
56 Alvie Beaver 47 Hired hand Laborer Ohio
57 Ruth Beaver 25 Wife — Ohio
58 Dorothy S Beaver 3 Daughter — Ohio
59 Delmar S Holleda 28 Head Book Keeper Ohio
60 Ada Holleda 28 Wife — Ohio
61 James Hall 64 Head Laborer Ohio
62 Walter G Lyon 37 Head Car Inspector Ohio
63 Dorthea Lyon 33 Wife — Ohio
64 Mary Margaret Lyon 14 Daughter — Ohio
65 Ruth Elenore Lyon 11 Daughter — Ohio
66 Helen Ann Lyon 5 Daughter — Ohio
67 Louis Friend 72 Head — Ohio
68 Nettie R Friend 75 Wife — Ohio
69 John E Shelton 36 Head Draftsman Ohio
70 Elsie L Shelton 32 Wife — Ohio
71 Dean Shelton 4 Son — Ohio
72 Paul B Ziel 48 Head Carpenter Ohio
73 Blanche Ziel 43 Wife — Ohio
74 Jack Ziel 10 Son — Ohio
75 Ernest V Granger 45 Head Automotive Engineer Wyoming
76 Opal Granger 32 Wife Cashier Ohio
77 Ethel Granger 16 Daughter — Ohio
78 Walter Naylor 41 Head Laborer Ohio
79 Gladys Naylor 31 Wife — Kentucky
80 Elzy Hutchison 13 Step son — Kentucky

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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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