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Jack Brown — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Montgomery-County, Ohio

Our Model Tree links this Jack Brown across the 1930 and 1940 US Censuses in Montgomery-County, Ohio (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 10-person household.

Age 11 b. ~1929 Male Son Born: Ohio Single

1940 Census Record Details

Census Year1940
LocationMontgomery-County, Ohio
SurnameBrown
Given NameJack E
Relationship to HeadSon
SexM
Color / RaceWhite
Age11
Marital StatusSingle
BirthplaceOhio
1935 Residence (City)Dayton
1935 Residence (County)Montgomery
Additional Details
Highest GradeNo 5
1935 ResidenceSame place
Birth StateOhio
Birth CountryUnited States
Birthplace (normalized)ohio
Township / WardDayton
Est. Birth Year~1929

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.

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

Name Relation to head Relative to Jack Age Birth yr
Sally Brown Daughter — 5 ~1935
Barbara Brown Daughter — ~1940
Virginia Brown Daughter — 4 ~1936
Mary Brown Daughter — 13 ~1927
Jack Brown Head — 37 ~1903
Thomas Brown Son — 2 ~1938
Richard Brown Son — 2 ~1938
Jack Brown Son — 11 ~1929
James Brown Son — 9 ~1931
Alvina Brown Spouse — 40 ~1900

Census Appearances

1930
Montgomery, Ohio
Son, age 1
Montgomery, Ohio · implied b. ~1929 — 5 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Brown
Given Name Jack A
Relationship to Head Son
Sex M
Color / Race White
Age 1
Marital Status Single
Birthplace Ohio
Father's Birthplace Ohio
Mother's Birthplace Ohio
Birth State Ohio
Birth Country United States
Birthplace (normalized) ohio
1940
Montgomery-County, Ohio
Son, age 11
Montgomery-County, Ohio · implied b. ~1929 — 10 household members
Surname Brown
Given Name Jack E
Relationship to Head Son
Sex M
Color / Race White
Age 11
Marital Status Single
Birthplace Ohio
1935 Residence (City) Dayton
1935 Residence (County) Montgomery
Highest Grade No 5
1935 Residence Same place
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 Jack Brown across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Jack Brown
Son · 1940 · age 11 · b. ~1929 · Ohio
★ You are viewing this record
Sibling
Barbara Brown
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Brown
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Brown
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Brown
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sally Brown
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Brown
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Brown
Sibling · 1940 · age 9
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

39 people indexed on this census page (nara:1940:m-t0627-03255-00170)

Line Name Age Relation Occupation Birthplace
41 Jack R Brown 37 Head Enumerator Ohio
42 Alvina E Brown 40 Wife — Ohio
43 Mary Lou Brown 13 Daughter — Ohio
44 Jack E Brown THIS PERSON 11 Son — Ohio
45 James W Brown 9 Son — Ohio
46 Sally Anna Brown 5 Daughter — Ohio
47 Virginia Brown 4 Daughter — Ohio
48 Richard Brown 2 Son — Ohio
49 Thomas Brown 2 Son — Ohio
50 Barbara Brown 0 Daughter — Ohio
51 Kenneth Shannon 32 Head Service Manager Tennessee
52 Zella Shannon 31 Wife Packer Tennessee
53 Betty Joe Shannon 11 Daughter — Ohio
54 Joyce Shannon 8 Daughter — Ohio
55 Earl A Owens 30 Head Painter Ohio
56 Marguerite Owens 31 Wife — Ohio
57 Gene Owens 12 Son — Ohio
58 Donald Osborne 24 Head Press Cleaner Kentucky
59 Edna Osborne 23 Wife Coffee Packer Kentucky
60 Robert Jones 28 Head Baker Tennessee
61 Minnie Jones 22 Wife — Tennessee
62 Roberta Jones 0 Daughter — Tennessee
63 Emery Walker 29 Head Truck Driver Ohio
64 Clara Walker 30 Wife — Ohio
65 Lloyd Hawkey 25 Head Mechanic Ohio
66 Joann Hawkey 25 Wife — Ohio
67 Jewell Williamson 30 Head Wash Man Kentucky
68 Herman Carroll 30 Head Assembler Indiana
69 Ruth A Carroll 29 Wife Assembler Ohio
70 Barbara Carroll 9 Daughter — Ohio
71 Joan Carroll 7 Daughter — Ohio
72 Maureen Carroll 5 Daughter — Ohio
73 Ida Boster 58 Boarder Housekeeper West Virginia
74 Elden Bowman 40 Head Silver Solder Ohio
75 Annette Bowman 28 Wife — Ohio
76 Audrey Bowman 8 Daughter — Ohio
77 Norma Bowman 6 Daughter — Ohio
78 Dane Wolfe 29 Head Stock Clerk Ohio
79 Marianne Wolfe 27 Wife — Ohio

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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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