RB
Robert Brown — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hardin-County, Ohio
Our Model Tree links this Robert Brown across the 1920, 1930 and 1940 US Censuses in Hardin-County, Ohio (XGBoost, ~Confirmed), with identified parents George & George — first a son (b.~1918), then head of a 8-person household.
Age 22
b. ~1918
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hardin-County, Ohio |
| Surname | Brown |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (County) | Hardin |
| Additional Details | |
| Occupation | 52 |
| Industry | Laborer |
| Class of Worker | Retail Grocery |
| Highest Grade | Hs 4 |
| 1935 Residence | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | 52 |
| Township / Ward | Kenton City |
| Est. Birth Year | ~1918 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Edna Brown | Daughter | — | 20 | ~1920 |
| Marcelle Brown | Daughter | — | 18 | ~1922 |
| George Brown | Head | — | 46 | ~1894 |
| Paul Brown | Son | — | 9 | ~1931 |
| Louis Brown | Son | — | 15 | ~1925 |
| Jerry Brown | Son | — | 5 | ~1935 |
| Robert Brown | Son | — | 22 | ~1918 |
| Daisy Brown | Spouse | — | 41 | ~1899 |
Census Appearances
1920
Hardin, Ohio
Son, age 2
Hardin, Ohio · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Hardin, Ohio
Son, age 11
Hardin, Ohio · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Hardin-County, Ohio
Son, age 22
Hardin-County, Ohio · implied b. ~1918 — 8 household members
| Surname | Brown |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (County) | Hardin |
| Occupation | 52 |
| Industry | Laborer |
| Class of Worker | Retail Grocery |
| Highest Grade | Hs 4 |
| 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.
Our Model Tree links Robert Brown across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Brown (~0.92 confidence) and father George Brown (~0.92 confidence) and mother Daisy Brown (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Brown
b. ~1894
Source father
● Household
· direct · ~0.92
Father
George Brown
b. ~1895
Source father
● Household
· direct · ~0.92
Mother
Daisy Brown
b. ~1899
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Brown
Son · 1940 · age 22 · b. ~1918 · Ohio
★ You are viewing this record
Sibling
Paul Brown
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jerry Brown
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louis Brown
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marcelle Brown
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edna Brown
Sibling · 1940 · age 20
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 — Hardin-County, Ohio
Open full size
1940 US Federal Census — Hardin-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03082-00117)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Betty Lou Nichols | 2 | Daughter | — | Ohio |
| 2 | John Nichols | 38 | Head | 40 | Ohio |
| 3 | Louie D. Nichols | 36 | Wife | — | Kentucky |
| 4 | Cecil Nichols | 13 | Son | — | Ohio |
| 5 | William Nichols | 12 | Son | — | Ohio |
| 6 | Ruth Nichols | 8 | Daughter | — | Ohio |
| 7 | Bert Dewitt | 45 | Head | 0 | Louisiana |
| 8 | Martha Dewitt | 18 | Daughter | 0 | Ohio |
| 9 | Anna Dewitt | 77 | Mother | 0 | Louisiana |
| 10 | Fred Galloway | 26 | Nephew | 40 | Michigan |
| 11 | Leola Mendenhall | 46 | Head | 0 | Ohio |
| 12 | Leonora Jefferson | 16 | Daughter | 0 | Ohio |
| 13 | Cora Milliken | 21 | Daughter | 0 | Ohio |
| 14 | John Mendenhall | 14 | Brother | 0 | Ohio |
| 15 | William Buck | 23 | Head | 0 | Indiana |
| 16 | Anna Buck | 19 | Wife | 0 | Ohio |
| 17 | Hiley Robert Porter | 51 | Head | 40 | Kentucky |
| 18 | Vila Porter | 52 | Wife | 0 | Ohio |
| 19 | Robert Porter | 7 | Grandson | — | Indiana |
| 20 | James Vatom | 4 | Grandson | — | Michigan |
| 21 | Petervan Vatom | 3 | Daughter | — | Texas |
| 22 | Lila Vatom | 1 | Daughter | — | Michigan |
| 23 | Endo Black | None | — | — | — |
| 24 | Joseph Haugholt | 60 | Head | 30 | Ohio |
| 25 | Maggie Haugholt | 57 | Wife | 30 | Ohio |
| 26 | George Brown | 46 | Head | 40 | Ohio |
| 27 | Daisy Brown | 41 | Wife | 0 | Ohio |
| 28 | Robert Brown THIS PERSON | 22 | Son | 52 | Ohio |
| 29 | Edna Brown | 20 | Daughter | 35 | Ohio |
| 30 | Marcelle Brown | 18 | Daughter | 35 | Ohio |
| 31 | Louis Brown | 15 | Son | 26 | Ohio |
| 32 | Paul Brown | 9 | Son | — | Ohio |
| 33 | Jerry Brown | 5 | Son | — | Ohio |
| 34 | Cora Thomas | 48 | Head | 0 | Ohio |
| 35 | Ellsworth Nichols | 36 | Head | 24 | Ohio |
| 36 | Flossie Nichols | 29 | Wife | 0 | Ohio |
| 37 | Elsie Nichols | 10 | Daughter | — | Ohio |
| 38 | Audrey Nichols | 8 | Daughter | — | Ohio |
| 39 | Clayton Nichols | 4 | Son | — | Ohio |
| 40 | Norma Nichols | 2 | Daughter | — | Ohio |
Related Census Records
Pedigree Summary
Robert + 5 siblings
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)