OB
Oscar Brown — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Rock-Island-County, Illinois
Our Model Tree links this Oscar Brown across the 1920, 1930 and 1940 US Censuses in Rock-Island-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1882), then head of a 5-person household.
Age 58
b. ~1882
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Rock-Island-County, Illinois |
| Surname | Brown |
| Given Name | Oscar A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Moline |
| 1935 Residence (County) | Rock Island |
| Additional Details | |
| Occupation | painter |
| Industry | farm implement factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Painter |
| Township / Ward | Moline |
| Est. Birth Year | ~1882 |
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 1940 census.
| Name | Relation to head | Relative to Oscar | Age | Birth yr |
|---|---|---|---|---|
| Lydia Brown | Spouse | — | 53 | ~1887 |
| Oscar Brown | Head | — | 58 | ~1882 |
| Mildred Brown | Daughter | — | 24 | ~1916 |
| Raymond Brown | Son | — | 29 | ~1911 |
| Harold Brown | Son | — | 19 | ~1921 |
Census Appearances
1920
Rock Island, …
Head, age 37
Rock Island, Illinois · implied b. ~1883
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Brown |
| Given Name | Oscar |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Painter |
| Industry | Wagon Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Rock Island, …
Head, age 48
Rock Island, Illinois · implied b. ~1882 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Oscar A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 23 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Painter |
| Industry | Wagon Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 2000 |
| Radio Set | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Rock-Island-County, Illinois
Head, age 58
Rock-Island-County, Illinois · implied b. ~1882 — 5 household members
| Surname | Brown |
| Given Name | Oscar A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Moline |
| 1935 Residence (County) | Rock Island |
| Occupation | painter |
| Industry | farm implement factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 Oscar Brown across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Oscar Brown
Head · 1940 · age 58 · b. ~1882 · 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 — Rock-Island-County, Illinois
Open full size
1940 US Federal Census — Rock-Island-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00875-00700)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ludwig Steek | 39 | Head | Sprayer | Germany |
| 42 | Lillian Steek | 45 | Wife | — | Illinois |
| 43 | Harry C. Nielsen | 48 | Head | Coal And Gravel Trucker | Denmark |
| 44 | Ella Nielsen | 42 | Wife | — | Illinois |
| 45 | Howard Nielsen | 19 | Son | Apprentice Draftsman | Illinois |
| 46 | Russell Nielsen | 16 | Son | Usher | Illinois |
| 47 | Marian Nielsen | 14 | Daughter | — | Illinois |
| 48 | Marvin Nielsen | 6 | Son | — | Illinois |
| 49 | Nels Rasmussen | 74 | Father-in-law | — | Denmark |
| 50 | Henry Rasmussen | 44 | Brother-in-law | Bartender | Illinois |
| 51 | Emil Roseberg | 69 | Head | — | Sweden |
| 52 | Emily Roseberg | 87 | Mother | — | Sweden |
| 53 | Betty Vance | 61 | Sister | Housekeeper | Sweden |
| 54 | William H. E. Dodson | 70 | Head | — | Illinois |
| 55 | Theresa Dodson | 71 | Wife | — | Iowa |
| 56 | Henry Kroeger | 53 | Head | Maintenance Man | Illinois |
| 57 | Hertha Kroeger | 53 | Wife | — | Illinois |
| 58 | Glenn Robert Kroeger | 22 | Son | Assistant Caretaker | Illinois |
| 59 | Harriet Eileen Kroeger | 19 | Daughter | Bindery Girl | Illinois |
| 60 | Anne Josephine Kroeger | 17 | Daughter | — | Illinois |
| 61 | Oscar A. Brown THIS PERSON | 58 | Head | Painter | Illinois |
| 62 | Lydia R. Brown | 53 | Wife | — | Missouri |
| 63 | Raymond N. Brown | 29 | Son | Delivery Boy | Illinois |
| 64 | Mildred Brown | 24 | Daughter | Elementary Teacher | Illinois |
| 65 | Harold Brown | 19 | Son | — | Illinois |
| 66 | Kenneth Mccauley | 27 | Head | Turret Lathe Operator | Illinois |
| 67 | Bernice Mccauley | 29 | Wife | — | Illinois |
| 68 | Patricia Ann Mccauley | 1 | Daughter | — | Illinois |
| 69 | Frank J. Tyler | 51 | Head | Chief Sales Manager | Illinois |
| 70 | Cecil Tyler | 50 | Wife | — | Illinois |
| 71 | J. Sterling Silver | 27 | Son | Branch House Auditor | Illinois |
| 72 | Myrtle Silver | 25 | Daughter-in-law | — | Illinois |
| 73 | Walter F. Williams | 50 | Head | Salesman | Illinois |
| 74 | Ada Williams | 48 | Wife | — | Illinois |
| 75 | Carl G. Williams | 11 | Son | — | Illinois |
| 76 | Arvid D. Nelson | 37 | Head | Tool Maker | Sweden |
| 77 | Elin Nelson | 34 | Wife | — | Sweden |
| 78 | Mary Ann Nelson | 15 | Daughter | — | Sweden |
| 79 | Ronald Lee Nelson | 3 | Son | — | Illinois |
| 80 | Albert Van Kerkhove | 40 | Son | — | Illinois |
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)