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Leo Brown — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Louis-City-County, Missouri
Our Model Tree links this Leo Brown across the 1930 and 1940 US Censuses in St.-Louis-City-County, Missouri (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 9-person household.
Age 14
b. ~1926
Male
Son
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-City-County, Missouri |
| Surname | Brown |
| Given Name | Leo |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis (city) |
| 1935 Residence (County) | St. Louis City |
| Additional Details | |
| Hours Worked | 56 |
| Income (1939) | 0 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same House |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | St Louis City |
| Est. Birth Year | ~1926 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Leo | Age | Birth yr |
|---|---|---|---|---|
| Jennie Brown | Spouse | — | 46 | ~1894 |
| Catherine Brown | Daughter | — | 23 | ~1917 |
| Leo Brown | Son | — | 14 | ~1926 |
| Shirley Brown | Daughter | — | 5 | ~1935 |
| Eleanor Brown | Son | — | 21 | ~1919 |
| Jean Brown | Daughter | — | 9 | ~1931 |
| Gilbert Brown | Son | — | 25 | ~1915 |
| Albert Brown | Head | — | 44 | ~1896 |
| Jane Brown | Daughter | — | 9 | ~1931 |
Census Appearances
1930
St Louis, …
Son, age 4
St Louis, Missouri · implied b. ~1926 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Leo |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-City-County, Missouri
Son, age 14
St.-Louis-City-County, Missouri · implied b. ~1926 — 9 household members
| Surname | Brown |
| Given Name | Leo |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis (city) |
| 1935 Residence (County) | St. Louis City |
| Hours Worked | 56 |
| Income (1939) | 0 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same House |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 14 · b. ~1926 · Missouri
★ You are viewing this record
Sibling
Gilbert Brown
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jean Brown
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jane Brown
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Brown
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Brown
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Brown
Sibling · 1940 · age 23
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 — St.-Louis-City-County, Missouri
Open full size
1940 US Federal Census — St.-Louis-City-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02210-00358)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Earl Weise | 48 | Head | Millworker | Kentucky |
| 2 | Lyda Weise | 48 | Wife | — | Missouri |
| 3 | Theodore Walter | 48 | Head | Machinist | Missouri |
| 4 | Anna Walter | 40 | Wife | — | Missouri |
| 5 | Geraline Meutrayer | 37 | Daughter in law | Laundress | Missouri |
| 6 | John D. R. Casey | 45 | Head | Medical Doctor | Missouri |
| 7 | Theresa Casey | 34 | Wife | — | Missouri |
| 8 | Patricia Casey | 6 | Daughter | — | Missouri |
| 9 | Laura Mallett | 24 | Maid | Maid | Michigan |
| 10 | Norman Prime | 46 | Head | Hoisting Engineer | Michigan |
| 11 | Estella Prime | 45 | Wife | — | Illinois |
| 12 | Camille Prime | 23 | Daughter | Clerk | Illinois |
| 13 | Norman Prime | 22 | Son | Hoisting Engineer | Michigan |
| 14 | Albert Fleming | 38 | Head | Weigher | Kentucky |
| 15 | Beatrice Fleming | 34 | Wife | Machine Operator | Kentucky |
| 16 | Marion Fleming | 10 | Daughter | — | Missouri |
| 17 | — | None | — | — | — |
| 18 | Glenn Leism | 37 | Head | Policeman | Missouri |
| 19 | Elizabeth Leism | 33 | Wife | — | Missouri |
| 20 | Jean Leism | 13 | Daughter | — | Missouri |
| 21 | Donald Leism | 9 | Son | — | Missouri |
| 22 | Donald Daulby | 15 | Boarder | — | Missouri |
| 23 | Martin Meeks | 22 | Boarder | — | Missouri |
| 24 | Albert Brown | 44 | Head | Foreman | Missouri |
| 25 | Jennie Brown | 46 | Wife | — | Missouri |
| 26 | Gilbert Brown | 25 | Son | Laborer | Missouri |
| 27 | Catherine Brown | 23 | Daughter | Machine Hand | Missouri |
| 28 | Eleanor Brown | 21 | Son | — | Missouri |
| 29 | Leo Brown THIS PERSON | 14 | Son | — | Missouri |
| 30 | Jean Brown | 9 | Daughter | — | Missouri |
| 31 | Jane Brown | 9 | Daughter | — | Missouri |
| 32 | Shirley Brown | 5 | Daughter | — | Missouri |
| 33 | Henry Hegg | 64 | Head | Custodian | Missouri |
| 34 | Gusta Hegg | 62 | Wife | — | Germany |
| 35 | Austin Hegg | 38 | Son | Attendant | Missouri |
| 36 | Charles Hegg | 62 | Brother | 28 | Missouri |
| 37 | Viola Bauman | 31 | Niece | — | Missouri |
| 38 | Sylvester Keefe | 50 | Head | Shoe Worker | So. Dakota |
| 39 | Myrtle Keefe | 35 | Wife | — | Missouri |
| 40 | August Roedder | 63 | Head | — | Missouri |
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)