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John Campbell — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Montgomery-County, Ohio

Our Model Tree links this John Campbell across the 1920, 1930 and 1940 US Censuses in Montgomery-County, Ohio (XGBoost, ~Confirmed), with identified parents Harry & Harry — first a son (b.~1917), then head of a 15-person household.

Age 23 b. ~1917 Male Son Born: Virginia Single

1940 Census Record Details

Census Year1940
LocationMontgomery-County, Ohio
SurnameCampbell
Given NameJohn
Relationship to HeadSon
SexM
Color / RaceWhite
Age23
Marital StatusSingle
BirthplaceVirginia
1935 Residence (City)Montgomery
1935 Residence (County)Montgomery
Additional Details
Highest GradeC-4
1935 ResidenceSame place
Birth StateVirginia
Birth CountryUnited States
Birthplace (normalized)virginia
Est. Birth Year~1917

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.

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

Name Relation to head Relative to John Age Birth yr
Rose Campbell Daughter — 19 ~1921
Agnes Campbell Daughter — 22 ~1918
Patricia Campbell Daughter — 13 ~1927
Coletta Campbell Daughter — 11 ~1929
Marcella Campbell Daughter — 15 ~1925
Susan Campbell Daughter — 10 ~1930
Harry Campbell Head — 47 ~1893
Jerome Campbell Son — 4 ~1936
Eugene Campbell Son — 8 ~1932
Charles Campbell Son — 2 ~1938
William Campbell Son — 7 ~1933
Richard Campbell Son — 17 ~1923
Francis Campbell Son — 6 ~1934
John Campbell Son — 23 ~1917
Edith Campbell Spouse — 44 ~1896

Census Appearances

1920
Montgomery, Ohio
Son, age 3
Montgomery, Ohio · implied b. ~1917 — 5 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Campbell
Given Name John
Relationship to Head Son
Sex M
Color / Race White
Age 3
Marital Status Single
Birthplace Virginia
Father's Birthplace Virginia
Mother's Birthplace Pennsylvania
Birth State Virginia
Birth Country United States
Birthplace (normalized) virginia
1930
Montgomery, Ohio
Son, age 14
Montgomery, Ohio · implied b. ~1916 — 11 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Campbell
Given Name John
Relationship to Head Son
Sex M
Color / Race White
Age 14
Marital Status Single
Birthplace Virginia
Father's Birthplace Virginia
Mother's Birthplace Pennsylvania
Can Read/Write Yes
Birth State Virginia
Birth Country United States
Birthplace (normalized) virginia
1940
Montgomery-County, Ohio
Son, age 23
Montgomery-County, Ohio · implied b. ~1917 — 15 household members
Surname Campbell
Given Name John
Relationship to Head Son
Sex M
Color / Race White
Age 23
Marital Status Single
Birthplace Virginia
1935 Residence (City) Montgomery
1935 Residence (County) Montgomery
Highest Grade C-4
1935 Residence Same place
Birth State Virginia
Birth Country United States
Birthplace (normalized) virginia

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 John Campbell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harry Campbell (~0.92 confidence) and father Harry Campbell (~0.92 confidence) and mother Edith Campbell (~0.92 confidence) and mother Edith Campbell (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1 Parents confidence ≈ 0.92
Father
Harry Campbell
b. ~1893
Source father
● Household · direct · ~0.92
Father
Harry Campbell
b. ~1893
Source father
● Household · direct · ~0.92
Mother
Edith Campbell
b. ~1896
Source mother
● Household · direct · ~0.92
Mother
Edith Campbell
b. ~1895
Source mother
● Household · direct · ~0.92
This person
Anchor record
John Campbell
Son · 1940 · age 23 · b. ~1917 · Ohio
★ You are viewing this record
Sibling
Agnes Campbell
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Campbell
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jerome Campbell
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Campbell
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Campbell
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Coletta Campbell
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Susan Campbell
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Campbell
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Campbell
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Campbell
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marcella Campbell
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Campbell
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 — Montgomery-County, Ohio Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-03256-00461)

Line Name Age Relation Occupation Birthplace
41 Gale Harmeling 9 Son — Ohio
42 Carolyn 4 Daughter — Ohio
43 Laura Blount 46 Head Laborer Kentucky
44 Lorena Blount 27 Daughter Waitress Kentucky
45 Thomas Gore 41 Head Job Setter W. Virginia
46 Dorothy Gore 24 Wife — Ohio
47 Mary Gore 2 Daughter — Ohio
48 Jesse Mann 48 Head Punch Press Kentucky
49 Bessie Mann 44 Wife — Kentucky
50 Martha Mann 17 Daughter — Kentucky
51 Ethel Mann 10 Daughter — Ohio
52 Harry Campbell 47 Head Fireman Virginia
53 Edith Campbell 44 Wife — Tenn.
54 John Campbell THIS PERSON 23 Son — Virginia
55 Agnes Campbell 22 Daughter Stator Winder Ohio
56 Rose Marie Campbell 19 Daughter House Work Ohio
57 Richard Campbell 17 Son — Ohio
58 Marcella Campbell 15 Daughter — Ohio
59 Patricia Campbell 13 Daughter — Ohio
60 Coletta Campbell 11 Daughter — Ohio
61 Susan Campbell 10 Daughter — Ohio
62 Eugene Campbell 8 Son — Ohio
63 William Campbell 7 Son — Ohio
64 Francis Campbell 6 Son — Ohio
65 Jerome Campbell 4 Son — Ohio
66 Charles Campbell 2 Son — Ohio
67 Stephen Donisi 63 Head Clerk Italy
68 Nancy Donisi 44 Wife — Italy
69 George Donisi 21 Son Packing House Ohio
70 Sammy Donisi 20 Son New Worker Ohio
71 Lucy Tucker 79 Head — Ohio
72 Stella Becker 61 Daughter Laborer Ohio
73 Ralph Steinbrugge 26 Head Assembler Ohio
74 Margaret Steinbrugge 27 Wife — Ohio
75 Adolph Steinbrugge 3 Son — Ohio
76 Edward Steinbrugge 1 Son — Ohio
77 Henry Hilker 53 Head Machinist Ohio
78 Rose Hilker 53 Wife — Ohio
79 Dorothy Hilker 16 Daughter — Ohio
80 Alfred Coughlin 26 Head Truck Driver Ohio

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Pedigree Summary

John + 12 siblings
Gen 1 · 4 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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