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Leroy Brown — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Leroy Brown across the 1910, 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed), with identified parents Fred & Leroy-Ab — first a son (b.~1908), then head of a 5-person household.
Age 22
b. ~1908
Male
Son
Born: Illinois
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Brown |
| Given Name | Leroy |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 21 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Occupation | Book-keeper |
| Industry | Fire Insurance |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Book-Keeper |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1908 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Leroy | Age | Birth yr |
|---|---|---|---|---|
| Leroy-Ab Brown | Head | — | 51 | ~1879 |
| Clarence Brown | Son | — | 19 | ~1911 |
| Eloise Brown | Other | — | 22 | ~1908 |
| Leroy Brown | Son | — | 22 | ~1908 |
| Nellie Brown | Other | — | 42 | ~1888 |
Census Appearances
1910
Cook, Illinois
Other, age 2
Cook, Illinois · implied b. ~1908 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Leroy |
| Relationship to Head | Grandson |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Cook, Illinois
Son, age 12
Cook, Illinois · implied b. ~1908 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Leroy |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Germany |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 22
Cook, Illinois · implied b. ~1908 — 5 household members
| Surname | Brown |
| Given Name | Leroy |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 21 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Illinois |
| Occupation | Book-keeper |
| Industry | Fire Insurance |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Leroy Brown across 3 US Census years (1910, 1920 and 1930) in Cook, Illinois, using XGBoost record linkage. Identified parents: father Fred Brown (~0.92 confidence) and father Leroy-Ab Brown (~0.92 confidence) and mother Ottilie Brown (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Fred Brown
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Leroy-Ab Brown
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Ottilie Brown
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Leroy Brown
Son · 1930 · age 22 · b. ~1908 · Illinois
★ You are viewing this record
Sibling
Clarence Brown
Sibling · 1930 · age 19
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
1930 US Federal Census — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
49 people indexed on this census page (ia:1930:illinoiscensus00reel474:0468)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Henry Stobbe | 27 | Head | Laborer | Germany |
| 2 | Erica Stobbe | 30 | Wife-H | None | Germany |
| 3 | Erica Stobbe | 5 | Daughter | None | Germany |
| 4 | Herbert Kussenale | 27 | Step-son | Salesman | Germany |
| 5 | Eric Kromer | 73 | Boarder | None | Germany |
| 6 | Joseph Fiedtke | 30 | Head | Laborer | Illinois |
| 7 | Theresa Fiedtke | 31 | Wife-H | None | Illinois |
| 8 | Leo Wera | 41 | Head | Sheet Metal Worker | Minnesota |
| 9 | Julia Wera | 41 | Wife-H | None | Illinois |
| 10 | Leon Wera | 5 | Son | None | Illinois |
| 11 | Walenty Ropczyck | 60 | Head | Clerk | Poland |
| 12 | Michael Ropczyck | 17 | Son | Clerk | Illinois |
| 13 | Irene Ropczyck | 15 | Daughter | None | Illinois |
| 14 | Frank Krzykocki | 45 | Head | Florist | Poland |
| 15 | Josephine Krzykocki | 39 | Wife-H | None | Poland |
| 16 | William Lehmann | 27 | Head | Architect | Illinois |
| 17 | Isabel Lehmann | 24 | Wife-H | None | Illinois |
| 18 | Bernadine Lehmann | 5 | Daughter | None | Illinois |
| 19 | James A. Barlow | 42 | Head | Salesman | Kentucky |
| 20 | Esther Barlow | 39 | Wife-H | None | Illinois |
| 21 | Donald Barlow | 13 | Son | None | Illinois |
| 22 | Kenneth J. Barlow | 19 | Son | Clerk | Illinois |
| 23 | Julia Barlow | 24 | Daughter-in-law | None | Russia |
| 24 | James Ronald Barlow | 0 | Grand-son | None | Illinois |
| 26 | Leroy-Ab Brown | 51 | Head | Chauffeur | Indiana |
| 27 | Nellie Brown | 42 | Wife-H | None | Illinois |
| 28 | Clarence Brown | 19 | Son | Clerk | Illinois |
| 29 | Leroy Brown THIS PERSON | 22 | Son | Book-Keeper | Illinois |
| 30 | Eloise Brown | 22 | Daughter-in-law | None | Wisconsin |
| 31 | Arthur Albright | 30 | Head | Salesman | Illinois |
| 32 | Marion Albright | 25 | Wife-H | None | Austria Hungary |
| 33 | Geraldine Albright | 2 | Daughter | None | Illinois |
| 34 | Arthur Albright | 0 | Son | None | Illinois |
| 35 | Miles Hover | 31 | Head | Service-Man | Nebraska |
| 36 | Mona Hover | 31 | Wife-H | None | Kansas |
| 37 | Miles Hover | 5 | Son | None | Illinois |
| 38 | Marie Orlowski | 33 | Head | Maker | Illinois |
| 39 | Lillian Orlowski | 37 | Sister | Maker | Illinois |
| 40 | John Orlowski | 43 | Brother | Jam Maker | Illinois |
| 41 | Mathilda Orlowski | 69 | Mother | None | Poland |
| 42 | Albert Grochowski | 54 | Head | Sander | Germany |
| 43 | Martha Grochowski | 47 | Wife-H | None | Germany |
| 44 | Edward Grochowski | 27 | Son | None | Illinois |
| 45 | Irene Grochowski | 16 | Daughter | None | Illinois |
| 46 | Alice Grochowski | 10 | Daughter | None | Illinois |
| 47 | Maryan Budacki | 46 | Head | Cabinet Maker | Poland |
| 48 | Katharine Budacki | 46 | Wife-H | None | Poland |
| 49 | Teddy Budacki | 19 | Son | Apprentice | Illinois |
| 50 | Emil Budacki | 17 | Son | Presser Helper | Illinois |
Pedigree Summary
Leroy + 1 sibling
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 1930 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)