GD
George Duncan — 1930 US Census Record
Model Tree available1930 United States Federal Census · Douglas, Illinois
Our Model Tree links this George Duncan across the 1900, 1910, 1920 and 1930 US Censuses in Douglas, Illinois (XGBoost, ~Confirmed), with identified parents John & Jessie — first a head (b.~1897), then head of a 4-person household.
Age 33
b. ~1897
Male
Head
Born: Illinois
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Douglas, Illinois |
| Surname | Duncan |
| Given Name | George |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 26 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Occupation | Postmaster |
| Industry | Government |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 5000 |
| Radio Set | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Postmaster |
| Township / Ward | Villa Grove City |
| Est. Birth Year | ~1897 |
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 1930 census.
| Name | Relation to head | Relative to George | Age | Birth yr |
|---|---|---|---|---|
| George Duncan | Head | — | 33 | ~1897 |
| Mildred Duncan | Son | — | 7 | ~1923 |
| Alice Duncan | Daughter | — | 8 | ~1922 |
| Dolores Duncan | Spouse | — | 28 | ~1902 |
Census Appearances
1900
Douglas, Illinois
Son, age 3
Douglas, Illinois · implied b. ~1897 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | George |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Birth Month | Aug |
| Birth Year | 1897 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1910
Douglas, Illinois
Son, age 14
Douglas, Illinois · implied b. ~1896 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | George F |
| 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 | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Douglas, Illinois
Son, age 22
Douglas, Illinois · implied b. ~1898 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | George |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Painter |
| Industry | R. R. Car Shops |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Douglas, Illinois
Head, age 33
Douglas, Illinois · implied b. ~1897 — 4 household members
| Surname | Duncan |
| Given Name | George |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 26 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Postmaster |
| Industry | Government |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 5000 |
| Radio Set | R |
| 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 4 US Census years (1900, 1910, 1920 and 1930) in Douglas, Illinois, using XGBoost record linkage. Identified parents: father John Duncan (~0.92 confidence) and mother Jessie Duncan (~0.92 confidence) and father Geo Duncan (~0.92 confidence) and father G Duncan (~0.92 confidence) and mother Nancy Duncan (~0.92 confidence) and mother Mary Duncan (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Duncan
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Jessie Duncan
b. ~1867
Source mother
● Household
· direct · ~0.92
Father
Geo Duncan
b. ~1870
Source father
● Household
· direct · ~0.92
Father
G Duncan
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Nancy Duncan
b. ~1871
Source mother
● Household
· direct · ~0.92
Mother
Mary Duncan
b. ~1872
Source mother
● Household
· direct · ~0.92
This person
Anchor record
George Duncan
Head · 1930 · age 33 · b. ~1897 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Douglas, Illinois
Open full size
1930 US Federal Census — Douglas, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel510:0864)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Claude Condiff | 30 | Head | Fireman | Illinois |
| 2 | Hilda Condiff | 26 | Wife | — | Illinois |
| 3 | Betty Condiff | 3 | Daughter | — | Illinois |
| 4 | Melvin Condiff | 2 | Son | — | Illinois |
| 5 | Laverna Condiff | 0 | Daughter | — | Illinois |
| 6 | Arthur Osterdock | 49 | Head | Engineer | Illinois |
| 7 | Elizabeth Osterdock | 49 | Wife | — | Illinois |
| 8 | Gladys Osterdock | 20 | Daughter | — | Illinois |
| 9 | Mary Osterdock | 15 | Daughter | — | Illinois |
| 10 | Daniel C. Martin | 70 | Head | Engineer | Ohio |
| 11 | Mary C. Martin | 67 | Wife | — | Ohio |
| 12 | Gilman Hanson | 41 | Head | Engineer | Indiana |
| 13 | Iona Hanson | 38 | Wife | None | Missouri |
| 14 | Pauline Hanson | 17 | Daughter | None | Illinois |
| 15 | Thelma Hanson | 16 | Daughter | None | Illinois |
| 16 | Erwin Hanson | 15 | Son | None | Illinois |
| 17 | Willard Morrison | 39 | Head | Stock Merchant | Illinois |
| 18 | Marguerite Morrison | 39 | Wife | None | Illinois |
| 19 | Richard Morrison | 4 | Son | None | Illinois |
| 20 | Adolph Reinhardt | 69 | Father | Postmaster | Illinois |
| 21 | George Duncan THIS PERSON | 33 | Head | Postmaster | Illinois |
| 22 | Dolores Duncan | 28 | Wife | Clerk | Iowa |
| 23 | Alice Duncan | 8 | Daughter | None | Illinois |
| 24 | Mildred Duncan | 7 | Son | None | Illinois |
| 25 | William Heath | 57 | Head | Conductor | Indiana |
| 26 | Mary Heath | 58 | Wife | None | Illinois |
| 27 | Virgil Linsey | 55 | Head | Conductor | Indiana |
| 28 | Pearl Linsey | 56 | Wife | None | Indiana |
| 29 | Clifford Dreashers | 35 | Head | Machinist | Indiana |
| 30 | Selma Dreashers | 35 | Wife | None | Illinois |
| 31 | Helen May Dreashers | 11 | Daughter | None | Illinois |
| 32 | Edward Hall | 58 | Head | Stationary Eng. | Illinois |
| 33 | Sarah Hall | 59 | Wife | None | Missouri |
| 34 | Charles Hall | 18 | Son | None | Illinois |
| 35 | Edward Shriepe | 48 | Head | Machinist | Kentucky |
| 36 | Edna Shriepe | 48 | Wife | None | Indiana |
| 37 | Mildred Shriepe | 20 | Daughter | None | Illinois |
| 38 | Clarence Rogers | 43 | Head | Fireman | Illinois |
| 39 | Ruth Rogers | 39 | Wife | None | Illinois |
| 40 | Esther Rogers | 16 | Daughter | None | Illinois |
| 41 | Charles Rogers | 13 | Son | None | Illinois |
| 42 | Ethel Rogers | 11 | Daughter | None | Illinois |
| 43 | Louise Rogers | 0 | Daughter | None | Illinois |
| 44 | Arthur Templeton | 31 | Head | Conductor | Illinois |
| 45 | Martha Templeton | 31 | Wife | None | Illinois |
| 46 | Alvin Templeton | 11 | Son | None | Illinois |
| 47 | Alice Templeton | 9 | Daughter | None | Illinois |
| 48 | Emma Jane Mayfield | 75 | Lodger | None | Illinois |
| 49 | Andy Chambers | 52 | Head | Garage | Illinois |
| 50 | Lodias Chambers | 47 | Wife | None | Illinois |
Pedigree Summary
George
Gen 1 · 6 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)