RD
Robert Douglas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Champaign-County, Illinois
Our Model Tree links this Robert Douglas across the 1920, 1930 and 1940 US Censuses in Champaign-County, Illinois (XGBoost, ~Confirmed), with identified parents Gordie & Roy — first a son (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Champaign-County, Illinois |
| Surname | Douglas |
| Given Name | Robert G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rantoul Village |
| 1935 Residence (County) | Champaign |
| Additional Details | |
| Occupation | Mail Carrier |
| Industry | U.S. Postal Service |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 1913 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Mail Carrier |
| Township / Ward | Rantoul Village |
| Est. Birth Year | ~1917 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Hilda Douglas | Spouse | — | 55 | ~1885 |
| Robert Douglas | Son | — | 23 | ~1917 |
| Charles Douglas | Son | — | 19 | ~1921 |
| Gordie Douglas | Head | — | 59 | ~1881 |
Census Appearances
1920
Champaign, Illinois
Son, age 5
Champaign, Illinois · implied b. ~1915 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Douglas |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Champaign, Illinois
Son, age 14
Champaign, Illinois · implied b. ~1916 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Douglas |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Champaign-County, Illinois
Son, age 23
Champaign-County, Illinois · implied b. ~1917 — 4 household members
| Surname | Douglas |
| Given Name | Robert G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rantoul Village |
| 1935 Residence (County) | Champaign |
| Occupation | Mail Carrier |
| Industry | U.S. Postal Service |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 1913 |
| Highest Grade | Hs 4 |
| 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 Robert Douglas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Gordie Douglas (~0.92 confidence) and father Roy Douglas (~0.92 confidence) and mother Hilda Douglas (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Gordie Douglas
b. ~1881
Source father
● Household
· direct · ~0.92
Father
Roy Douglas
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Hilda Douglas
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Douglas
Son · 1940 · age 23 · b. ~1917 · Illinois
★ You are viewing this record
Sibling
Charles Douglas
Sibling · 1940 · 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
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-t0627-00766-00332)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lee Sr. Vennum | 70 | Head | Retired | Illinois |
| 2 | Tena Vennum | 67 | Wife | — | Germany |
| 3 | Leon J. Vennum | 34 | Son | Laborer | Illinois |
| 4 | Effie Vennum | 34 | Daughter-in-law | Waitress | Illinois |
| 5 | Alice E. Mantle | 62 | Head | Tailor | Illinois |
| 6 | Mary A. Miller | 40 | Daughter | Owner | Illinois |
| 7 | Carl H. Polk | 41 | Head | Laborer | Illinois |
| 8 | Charlotte A. Polk | 40 | Wife | Stenographer | Illinois |
| 9 | Claude D. Hobson | 40 | Head | Mechanics Instructor | Indiana |
| 10 | Harriet Hobson | 35 | Wife | — | Illinois |
| 11 | Patricia A. Hobson | 16 | Daughter | — | Illinois |
| 12 | Rosabelle Hobson | 4 | Daughter | — | Illinois |
| 13 | Harry A. Funkhouser | 52 | Head | Laborer | Illinois |
| 14 | Dorcas Funkhouser | 40 | Wife | — | Indiana |
| 15 | Martha C. Gray | 65 | Head | — | Illinois |
| 16 | Peter J. Pevonka | 42 | Head | Construction Superintendent | Wisconsin |
| 17 | Mabel C. Pevonka | 26 | Wife | — | Illinois |
| 18 | Charles Morgan | 60 | Head | Janitor | Illinois |
| 19 | Gertrude Morgan | 57 | Wife | — | Illinois |
| 20 | Victor A. Schmitt | 33 | Head | Machinist Instructor | Illinois |
| 21 | Maude G. Schmitt | 37 | Wife | — | Illinois |
| 22 | Catherine Turner | 43 | Head | — | Indiana |
| 23 | Mary E. Turner | 13 | Daughter | — | Illinois |
| 24 | Claude F. Fultz | 41 | Head | Stationary Engineer | Indiana |
| 25 | Hilda G. Fultz | 39 | Wife | Saleslady | Illinois |
| 26 | Eileen H. Marron | 18 | Step-Daughter | Stenographer | Illinois |
| 27 | Catherine Marron | 16 | Step-Daughter | — | Illinois |
| 28 | James B. Marron | 13 | Step-Son | — | Illinois |
| 29 | Gordie G. Douglas | 59 | Head | Conductor | Illinois |
| 30 | Hilda L. Douglas | 55 | Wife | — | Sweden |
| 31 | Robert G. Douglas THIS PERSON | 23 | Son | Mail Carrier | Illinois |
| 32 | Charles W. Douglas | 19 | Son | Clerk | Illinois |
| 33 | William T. Huhn | 72 | Head | Crossing Patrolman | Illinois |
| 34 | Pauline Huhn | 73 | Wife | — | Germany |
| 35 | Melvin F. Seger | 21 | Lodger | Repairman | Illinois |
| 36 | Clifford J. Berry | 28 | Head | Bookkeeper | Illinois |
| 37 | Erma A. Berry | 28 | Wife | School Teacher | Illinois |
| 38 | Earl T. Stephens | 47 | Head | Partner | Illinois |
| 39 | Vera B. Stephens | 40 | Wife | — | Illinois |
| 40 | Robert E. Stephens | 19 | Son | — | Illinois |
Pedigree Summary
Robert + 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 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)