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Leo Brown — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Leo Brown across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1901), then head of a 4-person household.
Age 39
b. ~1901
Male
Head
Born: Russia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Brown |
| Given Name | Leo |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Russia |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Iron Worker |
| Industry | Iron Foundry |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2080 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth Country | Russia |
| Birthplace (normalized) | russia |
| Occupation | Iron Worker |
| Township / Ward | Boston City |
| Est. Birth Year | ~1901 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Leo | Age | Birth yr |
|---|---|---|---|---|
| Leo Brown | Head | — | 39 | ~1901 |
| Paul Brown | Son | — | 3 | ~1937 |
| Anne Brown | Spouse | — | 35 | ~1905 |
| Gloria Brown | Daughter | — | 11 | ~1929 |
Census Appearances
1920
Suffolk, Massachusetts
Other, age 21
Suffolk, Massachusetts · implied b. ~1899 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Leo |
| Relationship to Head | Boarder |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Russia |
| Year of Immigration | 1913 |
| Naturalization Status | Alien |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Occupation | Laborer |
| Industry | Works out W |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Yiddish |
| Birth Country | Russia |
| Birthplace (normalized) | russia |
1930
Suffolk, Massachusetts
Head, age 30
Suffolk, Massachusetts · implied b. ~1900 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Leo |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Russia |
| Naturalization Status | Naturalized |
| Year of Immigration | 1910 |
| Age at First Marriage | 28 |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Occupation | Iron Worker |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Yiddish |
| Home Owned/Rented | R |
| Home Value / Rent | 41 |
| Birth Country | Russia |
| Birthplace (normalized) | russia |
1940
Suffolk-County, Massachusetts
Head, age 39
Suffolk-County, Massachusetts · implied b. ~1901 — 4 household members
| Surname | Brown |
| Given Name | Leo |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Russia |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Occupation | Iron Worker |
| Industry | Iron Foundry |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2080 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth Country | Russia |
| Birthplace (normalized) | russia |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Leo Brown
Head · 1940 · age 39 · b. ~1901 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01673-00488)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Allen Kravitz | 35 | Head | Attorney | Russia |
| 2 | Bess Kravitz | 34 | Wife | — | Massachusetts |
| 3 | Barbara Kravitz | 9 | Daughter | — | Massachusetts |
| 4 | Harold Kravitz | 6 | Son | — | Massachusetts |
| 5 | Hyman Shafeldt | 70 | Head | Tailor | Russia |
| 6 | Bella Shafeldt | 65 | Wife | — | Russia |
| 7 | David Shafeldt | 36 | Son | Chauffeur | Russia |
| 8 | Edna Shafeldt | 29 | Daughter | Bookkeeper | Massachusetts |
| 9 | Bella Shafeldt | 27 | Daughter | Bookkeeper | Massachusetts |
| 10 | Bill Berliner | 28 | Head | Salesman | Russia |
| 11 | Leah Berliner | 26 | Wife | Bookkeeper | Massachusetts |
| 12 | Jacob Degelman | 35 | Head | Barber | Russia |
| 13 | Betty Degelman | 35 | Wife | — | Russia |
| 14 | Harry Degelman | 6 | Son | — | Massachusetts |
| 15 | Richard Degelman | 1 | Son | — | Massachusetts |
| 16 | Morris Stoler | 35 | Head | Meat Cutter | Russia |
| 17 | Lillie Stoler | 32 | Wife | — | Russia |
| 18 | Shirley Stoler | 9 | Daughter | — | Massachusetts |
| 19 | Irene Stoler | 7 | Daughter | — | Massachusetts |
| 20 | Phyllis Stoler | 5 | Daughter | — | Massachusetts |
| 21 | Eleanor Stoler | 2 | Daughter | — | Massachusetts |
| 22 | Benjamin Grose | 37 | Head | Tailor And Cleanser | Massachusetts |
| 23 | Rose Grose | 39 | Wife | — | Massachusetts |
| 24 | Melvin Grose | 11 | Son | — | Massachusetts |
| 25 | William Grose | 8 | Son | — | Massachusetts |
| 26 | Barbara Grose | 2 | Daughter | — | Massachusetts |
| 27 | William Transman | 48 | Head | Tailor | Russia |
| 28 | Mary Transman | 41 | Wife | — | Russia |
| 29 | Mollie Transman | 13 | Daughter | — | Massachusetts |
| 30 | Leo Brown THIS PERSON | 39 | Head | Iron Worker | Russia |
| 31 | Anne Brown | 35 | Wife | — | Russia |
| 32 | Gloria Brown | 11 | Daughter | — | Massachusetts |
| 33 | Paul Brown | 3 | Son | — | Massachusetts |
| 34 | James Brem | 39 | Head | Candy Jobber | Russia |
| 35 | Sadie Brem | 38 | Wife | — | Russia |
| 36 | Phyllis Brem | 8 | Daughter | — | Massachusetts |
| 37 | Marshall Brem | 3 | Son | — | Massachusetts |
| 38 | Abraham Kendall | 49 | Head | Ladies' Tailor | Russia |
| 39 | Sarah Kendall | 42 | Wife | Operator | Russia |
| 40 | Irene Kendall | 23 | Daughter | Music Teacher | Massachusetts |
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)