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Leo Brown — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Summit-County, Ohio
Our Model Tree links this Leo Brown across the 1930 and 1940 US Censuses in Summit-County, Ohio (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 10-person household.
Age 20
b. ~1920
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Summit-County, Ohio |
| Surname | Brown |
| Given Name | Leo H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Akron |
| 1935 Residence (County) | Summit |
| Additional Details | |
| Occupation | Landscaper Assistant |
| Industry | Private Home |
| Class of Worker | PW |
| Hours Worked | 3 |
| Income (1939) | 100 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Landscaper Assistant |
| Township / Ward | Akron |
| Est. Birth Year | ~1920 |
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 Leo | Age | Birth yr |
|---|---|---|---|---|
| Donald Brown | Son | — | 12 | ~1928 |
| Audrey Black | Daughter | — | 18 | ~1922 |
| Roy Brown | Son | — | 16 | ~1924 |
| Leo Brown | Son | — | 20 | ~1920 |
| John Brown | Son | — | 9 | ~1931 |
| George Brown | Son | — | 4 | ~1936 |
| Lloyd Brown | Head | — | 42 | ~1898 |
| Ora Brown | Spouse | — | 32 | ~1908 |
| Bernice Brown | Daughter | — | 13 | ~1927 |
| Charles Brown | Son | — | 21 | ~1919 |
Census Appearances
1930
Summit, Ohio
Son, age 10
Summit, Ohio · implied b. ~1920 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Leo H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Summit-County, Ohio
Son, age 20
Summit-County, Ohio · implied b. ~1920 — 10 household members
| Surname | Brown |
| Given Name | Leo H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Akron |
| 1935 Residence (County) | Summit |
| Occupation | Landscaper Assistant |
| Industry | Private Home |
| Class of Worker | PW |
| Hours Worked | 3 |
| Income (1939) | 100 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Leo Brown across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Leo Brown
Son · 1940 · age 20 · b. ~1920 · Ohio
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Sibling
Donald Brown
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Brown
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Brown
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Brown
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roy Brown
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernice Brown
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Audrey Black
Sibling · 1940 · age 18
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 — Summit-County, Ohio
Open full size
1940 US Federal Census — Summit-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03180-00511)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Esther H Elio | 16 | Daughter | — | Ohio |
| 2 | Earnest Elio | 7 | Son | — | Ohio |
| 3 | Alfred W Sirena | 26 | Head | Dye Kitchen | Minnesota |
| 4 | Anna E Sirena | 27 | Wife | — | Oklahoma |
| 5 | Alfred H Sirena | 7 | Son | — | Ohio |
| 6 | Lloyd R Brown | 42 | Head | Loader Of Trucks | Pennsylvania |
| 7 | Ora M Brown | 32 | Wife | — | Pennsylvania |
| 8 | Leo H Brown THIS PERSON | 20 | Son | Landscaper Assistant | Pennsylvania |
| 9 | Roy O Brown | 16 | Son | — | Pennsylvania |
| 10 | Bernice Brown | 13 | Daughter | — | Pennsylvania |
| 11 | Donald C Brown | 12 | Son | — | Pennsylvania |
| 12 | John R Brown | 9 | Son | — | Ohio |
| 13 | George E Brown | 4 | Son | — | Ohio |
| 14 | Audrey L Black | 18 | Daughter | — | Pennsylvania |
| 15 | Charles A Brown | 21 | Son | Machine Helper | Pennsylvania |
| 16 | Vernahall | 17 | Daughter in law | — | Ohio |
| 17 | Arosio Mastrianni | 50 | Head | Grading | Italy |
| 18 | Mary Mastrianni | 44 | Wife | — | Italy |
| 19 | Mary R Mastrianni | 19 | Daughter | New Worker | Ohio |
| 20 | Yoland M Mastrianni | 17 | Daughter | Clerk School | Ohio |
| 21 | Daniel Mastrianni | 15 | Son | — | Ohio |
| 22 | Jennie E Sprain | 71 | Head | — | Canada-Eng |
| 23 | Henry A Sprain | 47 | Son | Pipe Fitter | Ohio |
| 24 | Clara A Sprain | 33 | Daughter | Typist | Ohio |
| 25 | Elizabeth Manderbach | 50 | Daughter | Perforator | Ohio |
| 26 | Katherine Neal | 79 | Sister | — | Canada-Eng |
| 27 | Harry A Ahern | 55 | Nephew | Oiler | Canada-Eng |
| 28 | Michael Mitich | 35 | Lodger | Shipping Clerk | Ohio |
| 29 | Louis Barone | 55 | Head | Stock Carrier | Italy |
| 30 | Althea Barone | 54 | Wife | — | Italy |
| 31 | Anna D Barone | 20 | Daughter | Comptometer Operator | Ohio |
| 32 | Frank D Lonsbury | 49 | Head | Repairman | Ohio |
| 33 | Mary Lonsbury | 46 | Wife | — | Ohio |
| 34 | Frederick P Lonsbury | 18 | Son | — | Ohio |
| 35 | William Cazzing | 76 | Lodger | Tube Man | New York |
| 36 | Frank Hermann | 33 | Head | Driver | Ohio |
| 37 | Regina Hermann | 35 | Wife | — | Ohio |
| 38 | Barbara Hermann | 6 | Daughter | — | Ohio |
| 39 | Charles A Peifer | 50 | Head | Gait Man | Ohio |
| 40 | Ida M Peifer | 87 | Mother | — | Ohio |
Related Census Records
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)