OB
Oscar Brown — 1940 US Census Record
Model Tree available1940 United States Federal Census · Champaign-County, Illinois
Our Model Tree links this Oscar Brown across the 1910, 1920, 1930 and 1940 US Censuses in Champaign-County, Illinois (XGBoost, ~Confirmed), with identified parents Mattie — first a head (b.~1891), then head of a 11-person household.
Age 49
b. ~1891
Male
Head
Born: Wisconsin
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Champaign-County, Illinois |
| Surname | Brown |
| Given Name | Oscar |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Champaign |
| 1935 Residence (County) | Champaign |
| Additional Details | |
| Occupation | cement finisher |
| Industry | Construction |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 368 |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Cement Finisher |
| Township / Ward | Champaign |
| Est. Birth Year | ~1891 |
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 Oscar | Age | Birth yr |
|---|---|---|---|---|
| Oscar Brown | Head | — | 49 | ~1891 |
| Patricia Horn | Other | — | 3 | ~1937 |
| Charles Brown | Son | — | 14 | ~1926 |
| Phyllis Horn | Other | — | 7 | ~1933 |
| Russell Brown | Son | — | 23 | ~1917 |
| Eugene Brown | Son | — | 21 | ~1919 |
| Russell Horn | Other | — | 25 | ~1915 |
| Richard Horn | Other | — | 5 | ~1935 |
| V Horn | Daughter | — | 23 | ~1917 |
| Oliver Brown | Son | — | 19 | ~1921 |
| Ethel Brown | Spouse | — | 49 | ~1891 |
Census Appearances
1910
Champaign, Illinois
Son, age 19
Champaign, Illinois · implied b. ~1891 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Oscar E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Indiana |
| Occupation | Railroad section |
| Industry | Laborer |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1920
Champaign, Illinois
Head, age 28
Champaign, Illinois · implied b. ~1892 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Oscar E |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | Laborer |
| Industry | Street |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1930
Champaign, Illinois
Head, age 38
Champaign, Illinois · implied b. ~1892 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Oscar E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Age at First Marriage | 24 |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Indiana |
| Occupation | Cabinet maker |
| Industry | Casket Works |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 15 |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Champaign-County, Illinois
Head, age 49
Champaign-County, Illinois · implied b. ~1891 — 11 household members
| Surname | Brown |
| Given Name | Oscar |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Champaign |
| 1935 Residence (County) | Champaign |
| Occupation | cement finisher |
| Industry | Construction |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 368 |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Oscar Brown across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mattie Brown (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mattie Brown
b. ~1870
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Oscar Brown
Head · 1940 · age 49 · b. ~1891 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Champaign-County, Illinois
Open full size
1940 US Federal Census — Champaign-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00765-00274)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Larry Spicy | 18 | — | — | Georgia |
| 42 | Leon Becker | 27 | head | Recreation Leader | Illinois |
| 43 | Dora Becker | 27 | wife | None | Kentucky |
| 44 | Marion R. Becker | 6 | daughter | — | Illinois |
| 45 | Martha Bernice Becker | 4 | daughter | — | Illinois |
| 46 | Sue Ellen Becker | 1 | daughter | — | Illinois |
| 47 | Richard Evans | 22 | lodger | Laborer | Illinois |
| 48 | Maxine Evans | 21 | lodger | None | Illinois |
| 49 | Joan Evans | 2 | lodger | — | Illinois |
| 50 | Norman Willis Evans | 0 | lodger | — | Illinois |
| 51 | Oscar Brown THIS PERSON | 49 | head | Cement Finisher | Wisconsin |
| 52 | Ethel Brown | 49 | wife | None | Illinois |
| 53 | Russell Brown | 23 | son | Laborer | Illinois |
| 54 | Eugene Brown | 21 | son | Laborer | Indiana |
| 55 | Oliver A. Brown | 19 | son | Conveyor Loader | Illinois |
| 56 | Charles Brown | 14 | son | Laborer | Illinois |
| 57 | Russell R. Horn | 25 | son-in-law | Salesman | Illinois |
| 58 | V. Eileen Horn | 23 | daughter | None | Illinois |
| 59 | Phyllis M. Horn | 7 | granddaughter | — | Illinois |
| 60 | Richard Gene Horn | 5 | grandson | — | Illinois |
| 61 | Patricia Ann Horn | 3 | granddaughter | — | Illinois |
| 62 | Elydie Perkins | 31 | head | Shoe Shiner | Illinois |
| 63 | M. Esther Perkins | 25 | wife | None | Illinois |
| 64 | Elydie Jr. Perkins | 6 | son | — | Illinois |
| 65 | Lady Mae Thompson | 43 | mother-in-law | None | Illinois |
| 66 | Mary Esther Thompson | 16 | niece | — | Illinois |
| 67 | Will Domick | 38 | head | Brakeman | Illinois |
| 68 | Violet Domick | 38 | wife | None | Illinois |
| 69 | Betty Domick | 18 | daughter | None | Illinois |
| 70 | Donald Domick | 14 | son | None | Illinois |
| 71 | Jacqueline Domick | 3 | daughter | — | Illinois |
| 72 | Mary Holliday | 21 | lodger | House Maid | Vermont |
| 73 | William E. Mcclard | 50 | head | Painter | Tennessee |
| 74 | Margaret Mcclard | 51 | wife | Cook | Illinois |
| 75 | William E. Jr. Mcclard | 14 | son | None | Illinois |
| 76 | Anna Maria Mcclard | 11 | daughter | — | Illinois |
| 77 | Ernest Revell | 38 | head | Body And Fender Man | Illinois |
| 78 | Jennie Revell | 35 | wife | Counter Clerk | Illinois |
| 79 | Billie Revell | 15 | son | None | Illinois |
| 80 | Betty Jean Revell | 11 | daughter | — | Illinois |
Pedigree Summary
Oscar
Gen 1 · 1 parents
~0.92
Max depth 4 (1900–1950 window)
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)