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George Duncan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Will-County, Illinois
Our Model Tree links this George Duncan across the 1920, 1930 and 1940 US Censuses in Will-County, Illinois (XGBoost, ~Confirmed), with identified parents Charles & Laura — first a son (b.~1916), then head of a 5-person household.
Age 24
b. ~1916
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Will-County, Illinois |
| Surname | Duncan |
| Given Name | George |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Joliet |
| 1935 Residence (County) | Will |
| Additional Details | |
| Occupation | Laborer |
| Industry | Oil Refinery |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 235 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Laborer |
| Township / Ward | Joliet |
| Est. Birth Year | ~1916 |
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 George | Age | Birth yr |
|---|---|---|---|---|
| Virginia Duncan | Daughter | — | 15 | ~1925 |
| George Duncan | Son | — | 24 | ~1916 |
| Robert Duncan | Son | — | 13 | ~1927 |
| Laura Duncan | Spouse | — | 43 | ~1897 |
| John Duncan | Son | — | 19 | ~1921 |
Census Appearances
1920
Will, Illinois
Son, age 3
Will, Illinois · implied b. ~1917 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | George |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Alabama |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Will, Illinois
Son, age 14
Will, Illinois · implied b. ~1916 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | George L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Will-County, Illinois
Son, age 24
Will-County, Illinois · implied b. ~1916 — 5 household members
| Surname | Duncan |
| Given Name | George |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Joliet |
| 1935 Residence (County) | Will |
| Occupation | Laborer |
| Industry | Oil Refinery |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 235 |
| Highest Grade | H-2 |
| 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 George Duncan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Duncan (~0.92 confidence) and mother Laura Duncan (~0.92 confidence) and mother Carrie Duncan (~0.92 confidence) and father James Duncan (~0.92 confidence) and mother Laura Duncan (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Duncan
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Laura Duncan
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Carrie Duncan
b. ~1893
Source mother
● Household
· direct · ~0.92
Father
James Duncan
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Laura Duncan
b. ~1897
Source mother
● Household
· direct · ~0.92
This person
Anchor record
George Duncan
Son · 1940 · age 24 · b. ~1916 · Illinois
★ You are viewing this record
Sibling
Robert Duncan
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Duncan
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Duncan
Sibling · 1940 · age 15
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 — Will-County, Illinois
Open full size
1940 US Federal Census — Will-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00908-00937)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Laura Duncan | 43 | Wife | — | Illinois |
| 2 | George Duncan THIS PERSON | 24 | Son | Laborer | Illinois |
| 3 | John Duncan | 19 | Son | Messenger | Illinois |
| 4 | Virginia Duncan | 15 | Daughter | Student | Illinois |
| 5 | Robert Duncan | 13 | Son | — | Illinois |
| 6 | Ernest Viano | 39 | Head | Truck Driver | Illinois |
| 7 | Opal Viano | 34 | Wife | — | Kentucky |
| 8 | Dordean Stewart | 16 | Daughter | Domestic | Illinois |
| 9 | William Cramer | 13 | Son | — | Illinois |
| 10 | Fred Browne | 55 | Head | Laborer | New York |
| 11 | Helen Browne | 41 | Wife | — | Ohio |
| 12 | Billy Browne | 10 | Son | — | Michigan |
| 13 | Charmaine Browne | 2 | Daughter | — | Illinois |
| 14 | Garey Woods | 39 | Head | Repair Man | Indiana |
| 15 | Alice Woods | 36 | Wife | — | Illinois |
| 16 | Beverly Woods | 14 | Daughter | — | Illinois |
| 17 | Raymond Woods | 12 | Son | — | Illinois |
| 18 | Robert Danguemont | 25 | Head | Foreman | Illinois |
| 19 | Myrtle Danguemont | 25 | Wife | — | Wisconsin |
| 20 | Robert Danguemont | 1 | Son | — | Illinois |
| 21 | Louis Klepeka | 34 | Head | Welder | Czechoslovakia |
| 22 | Alberta Klepeka | 28 | Wife | — | Illinois |
| 23 | Rosemary Klepeka | 3 | Daughter | — | Illinois |
| 24 | Clarence Fox | 33 | Head | Laborer | W. Virginia |
| 25 | Lora Fox | 28 | Wife | — | Illinois |
| 26 | Clarence Jr. Fox | 9 | Son | — | Illinois |
| 27 | Laurance Fox | 8 | Son | — | Illinois |
| 28 | Richard Fox | 4 | Son | — | Illinois |
| 29 | Raymond Evens | 29 | Head | Laborer | Illinois |
| 30 | Winifred Evens | 25 | Wife | — | Illinois |
| 31 | Nancy R. Evens | 5 | Daughter | — | Illinois |
| 32 | Catherine Evens | 3 | Daughter | — | Illinois |
| 33 | Carl Maxwell | 32 | Head | Laborer | Illinois |
| 34 | Annie Maxwell | 29 | Wife | — | Illinois |
| 35 | Eunice Maxwell | 15 | Daughter | — | Illinois |
| 36 | Eddie Gill | 60 | Head | Laborer | England |
| 37 | Sarah Gill | 50 | Wife | — | Iowa |
| 38 | Irene Gill | 21 | Daughter | Laborer | Illinois |
| 39 | Florence Gill | 19 | Daughter | Domestic | Illinois |
| 40 | Celida Churchill | 75 | Mother-in-law | — | New York |
Pedigree Summary
George + 3 siblings
Gen 1 · 5 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)