LB
Leo Brown — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Leo Brown across the 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 11-person household.
Age 13
b. ~1927
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Brown |
| Given Name | Leo |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1927 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Leo | Age | Birth yr |
|---|---|---|---|---|
| Leona Brown | Spouse | — | 41 | ~1899 |
| Francis Brown | Son | — | 15 | ~1925 |
| Eileen Brown | Daughter | — | 19 | ~1921 |
| Mary Brown | Daughter | — | 5 | ~1935 |
| Louis Brown | Head | — | 49 | ~1891 |
| James Brown | Son | — | 2 | ~1938 |
| Phillip Brown | Son | — | 17 | ~1923 |
| Dolores Brown | Daughter | — | 10 | ~1930 |
| Gloria Brown | Daughter | — | 12 | ~1928 |
| Leo Brown | Son | — | 13 | ~1927 |
| J Brown | Son | — | 23 | ~1917 |
Census Appearances
1930
Baltimore, Maryland
Son, age 3
Baltimore, Maryland · implied b. ~1927 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Leo |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Son, age 13
Baltimore-City-County, Maryland · implied b. ~1927 — 11 household members
| Surname | Brown |
| Given Name | Leo |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Highest Grade | No 5 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 13 · b. ~1927 · Maryland
★ You are viewing this record
Sibling
Dolores Brown
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gloria Brown
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Phillip Brown
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
J Brown
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eileen Brown
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Brown
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Brown
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Brown
Sibling · 1940 · age 15
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 — Baltimore-City-County, Maryland
Open full size
1940 US Federal Census — Baltimore-City-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01531-00349)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Chester Fallon | 5 | Son | — | Maryland |
| 2 | Lillian A. Fallon | 34 | Head | — | Maryland |
| 3 | Chester L. Cromm | 34 | Head | Chauffeur | Maryland |
| 4 | Naomi Cromm | 29 | Wife | — | Maryland |
| 5 | Ray Cromm | 9 | Son | — | Maryland |
| 6 | Charles Cromm | 8 | Son | — | Maryland |
| 7 | John Coligny | 27 | Head | Police | Maryland |
| 8 | Evelyn Coligny | 27 | Wife | — | Pennsylvania |
| 9 | Warren W. Coligny | 4 | Son | — | Maryland |
| 10 | Benjamin Cohen | 60 | Head | Confect. | Russia |
| 11 | Tillie Cohen | 59 | Wife | — | Poland |
| 12 | Samuel Cohen | 27 | Son | Presser | Maryland |
| 13 | Faye Cohen | 21 | Daughter | Sales Girl | Maryland |
| 14 | Rita Cohen | 19 | Daughter | Sales Girl | Maryland |
| 15 | Willard E. Lord | 31 | Head | Chauffeur | Pennsylvania |
| 16 | Doris Lord | 28 | Wife | — | Pennsylvania |
| 17 | Willard J. Lord | 11 | Son | — | Pennsylvania |
| 18 | Borel Slaughter | 36 | Head | Shoe Maker | Lithuania |
| 19 | Rita Slaughter | 30 | Wife | — | Maryland |
| 20 | Aline Slaughter | 5 | Daughter | — | Maryland |
| 21 | Michael Hauk | 65 | Head | Painter | Maryland |
| 22 | Landis Miles | 71 | Head | — | Maryland |
| 23 | Clarence Miles | 26 | Son | Laborer | Maryland |
| 24 | Willie Miles | 44 | Son | Laborer | Maryland |
| 25 | Edw Addie Miles | 42 | Sister | Domestic | Maryland |
| 26 | Louis Brown | 49 | Head | Porter | Maryland |
| 27 | Leona Brown | 41 | Wife | — | Maryland |
| 28 | J. Louis Brown | 23 | Son | Elevator Oper. | Maryland |
| 29 | Eileen Brown | 19 | Daughter | Laundry Work | Maryland |
| 30 | Phillip Brown | 17 | Son | New Worker | Maryland |
| 31 | Francis Brown | 15 | Son | — | Maryland |
| 32 | Leo Brown THIS PERSON | 13 | Son | — | Maryland |
| 33 | Gloria Brown | 12 | Daughter | — | Maryland |
| 34 | Dolores Brown | 10 | Daughter | — | Maryland |
| 35 | Mary Brown | 5 | Daughter | — | Maryland |
| 36 | James Brown | 2 | Son | — | Maryland |
| 37 | Benjamin Cooper | 48 | Head | Laborer | Maryland |
| 38 | Ellen Cooper | 24 | Wife | — | Maryland |
| 39 | Bernard Camel | 16 | Nephew | Janitor | Maryland |
| 40 | Liza Camel | 24 | Sister in Law | — | Maryland |
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)