JD
James Duncan — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Coles, Illinois
Our Model Tree links this James Duncan across the 1900, 1910 and 1920 US Censuses in Coles, Illinois (XGBoost, ~Confirmed) — first a head (b.~1868), then head of a 9-person household.
Age 52
b. ~1868
Male
Head
Born: Illinois
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Coles, Illinois |
| Surname | Duncan |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Indiana |
| Additional Details | |
| Occupation | Farmer |
| Industry | Home Farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Farmer |
| Township / Ward | North Okaw Township |
| Est. Birth Year | ~1868 |
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.
9 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Frances Duncan | Daughter | — | 6 | ~1914 |
| Nellie Duncan | Daughter | — | 12 | ~1908 |
| James Duncan | Head | — | 52 | ~1868 |
| Herman Duncan | Son | — | 17 | ~1903 |
| Roscoe Duncan | Son | — | 14 | ~1906 |
| Wayne Duncan | Son | — | 10 | ~1910 |
| Edwin Duncan | Son | — | 8 | ~1912 |
| Roland Duncan | Son | — | 2 | ~1918 |
| Minnie Duncan | Spouse | — | 44 | ~1876 |
Census Appearances
1900
Coles, Illinois
Head, age 32
Coles, Illinois · implied b. ~1868 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Illinois |
| Birth Month | Mar |
| Birth Year | 1868 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Indiana |
| Occupation | Farmer |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1910
Coles, Illinois
Head, age 42
Coles, Illinois · implied b. ~1868 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Illinois |
| Years Married | 15 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Indiana |
| Occupation | Farmer |
| Industry | Gen Farm |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Coles, Illinois
Head, age 52
Coles, Illinois · implied b. ~1868 — 9 household members
| Surname | Duncan |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Indiana |
| Occupation | Farmer |
| Industry | Home Farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| 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 James Duncan across 3 US Census years (1900, 1910 and 1920) in Coles, Illinois, using XGBoost record linkage.
Show:
This person
Anchor record
James Duncan
Head · 1920 · age 52 · b. ~1868 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Coles, Illinois
Open full size
1920 US Federal Census — Coles, Illinois
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu304unit:0478)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Herbert W. Lilly | 30 | Head | — | Illinois |
| 2 | Mildred Lilly | 8 | Daughter | — | Illinois |
| 3 | Homer Lilly | 4 | Son | — | Illinois |
| 4 | Richard M. Lilly | 1 | Son | — | Illinois |
| 5 | Mary M. Wallace | 40 | Sister-in-law | — | Illinois |
| 6 | Charles Spencer | 29 | Head | Merchant | Virginia |
| 7 | Alma Spencer | 22 | Wife | — | Kentucky |
| 8 | Everett Spencer | 1 | Son | — | Illinois |
| 9 | Leona Spencer | 0 | Daughter | — | Illinois |
| 10 | George H. Smith | 58 | Head | Manager | Illinois |
| 11 | Naomi E. Smith | 55 | Wife | — | Illinois |
| 12 | Sarah Smith | 30 | Daughter | — | Illinois |
| 13 | Gertie Smith | 16 | Daughter | — | Illinois |
| 14 | John H. Smith | 13 | Son | — | Illinois |
| 15 | Polly Southern | 72 | Mother-in-law | — | Kentucky |
| 16 | Harold B. Whitley | 22 | Head | Laborer | Illinois |
| 17 | Hazel B. Whitley | 27 | Wife | — | Illinois |
| 18 | Charles A. Stotler | 41 | Head | Merchant | Illinois |
| 19 | Blanche Stotler | 30 | Wife | — | Illinois |
| 20 | Irene R. Stotler | 5 | Daughter | — | Illinois |
| 21 | Imogene D. Stotler | 2 | Daughter | — | Illinois |
| 22 | John F. Heller | 25 | Head | Manager | Illinois |
| 23 | Flossie V. Heller | 20 | Wife | — | Illinois |
| 24 | Mary K. Heller | 1 | Daughter | — | Illinois |
| 25 | James Duncan THIS PERSON | 52 | Head | Farmer | Illinois |
| 26 | Minnie Duncan | 44 | Wife | — | Illinois |
| 27 | Herman Duncan | 17 | Son | Laborer | Illinois |
| 28 | Roscoe Duncan | 14 | Son | — | Illinois |
| 29 | Nellie Duncan | 12 | Daughter | — | Illinois |
| 30 | Wayne Duncan | 10 | Son | — | Illinois |
| 31 | Edwin Duncan | 8 | Son | — | Illinois |
| 32 | Frances E. Duncan | 6 | Daughter | — | Illinois |
| 33 | Roland Duncan | 2 | Son | — | Illinois |
| 34 | Frank S. Frazier | 40 | Head | Farmer | Indiana |
| 35 | Mary B. Frazier | 37 | Wife | — | Illinois |
| 36 | Imogene M. Frazier | 14 | Daughter | — | Illinois |
| 37 | Edward S. Frazier | 3 | Son | — | Illinois |
| 38 | Alfred Whitley | 23 | Head | Laborer | Illinois |
| 39 | Etta H. Whitley | 20 | Wife | — | Illinois |
| 40 | William H. Whitley | 1 | Son | — | Illinois |
| 41 | Annie Rowley | 67 | Head | — | Missouri |
| 42 | Henry H. Hart | 52 | Head | Farmer | Illinois |
| 43 | Mae M. Hart | 49 | Sister | — | Illinois |
| 44 | Leslie Hart | 27 | Head | Carpenter | Illinois |
| 45 | Florence Hart | 19 | Wife | — | Illinois |
| 46 | Arnold G. Hart | 2 | Son | — | Illinois |
| 47 | Elmer E. Jones | 30 | Head | Farmer | Illinois |
| 48 | Mattie Jones | 22 | Wife | — | Illinois |
| 49 | Imogene Jones | 11 | Daughter | — | Illinois |
| 50 | Andrew J. Jones | 9 | Son | — | Illinois |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)