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George Duncan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Rooks-County, Kansas
Our Model Tree links this George Duncan across the 1920, 1930 and 1940 US Censuses in Rooks-County, Kansas (XGBoost, ~Confirmed), with identified parents William & Bertha — first a son (b.~1909), then head of a 3-person household.
Age 31
b. ~1909
Male
Son
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Rooks-County, Kansas |
| Surname | Duncan |
| Given Name | George H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Lanark Twp. |
| 1935 Residence (County) | Rooks |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Farmer |
| Township / Ward | Lanark Twp |
| Est. Birth Year | ~1909 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to George | Age | Birth yr |
|---|---|---|---|---|
| George Duncan | Son | — | 31 | ~1909 |
| Bertha Duncan | Head | — | 68 | ~1872 |
| Marie Duncan | Daughter | — | 29 | ~1911 |
Census Appearances
1920
Rooks, Kansas
Son, age 11
Rooks, Kansas · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | George H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Rooks, Kansas
Son, age 21
Rooks, Kansas · implied b. ~1909 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | George H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Sweden |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Rooks-County, Kansas
Son, age 31
Rooks-County, Kansas · implied b. ~1909 — 3 household members
| Surname | Duncan |
| Given Name | George H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Lanark Twp. |
| 1935 Residence (County) | Rooks |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 William Duncan (~0.92 confidence) and mother Bertha Duncan (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Duncan
b. ~1868
Source father
● Household
· direct · ~0.92
Mother
Bertha Duncan
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
George Duncan
Son · 1940 · age 31 · b. ~1909 · Kansas
★ You are viewing this record
Sibling
Marie Duncan
Sibling · 1940 · age 29
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 — Rooks-County, Kansas
Open full size
1940 US Federal Census — Rooks-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01256-00708)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | F. Marion Bartlett | 68 | Head | Farmer | Missouri |
| 2 | Susie M. Bartlett | 60 | Wife | — | Kansas |
| 3 | Mabel F. Bartlett | 30 | Daughter | Secretary | Kansas |
| 4 | George W. Bartlett | 63 | Head | Farmer | Illinois |
| 5 | Annabell Slightam | 31 | Niece | Teacher | Minnesota |
| 6 | Leonard F. Bartlett | 37 | Head | Farmer | Kansas |
| 7 | Maude E. Bartlett | 37 | Wife | — | Kansas |
| 8 | Jeannine L. Bartlett | 10 | Daughter | — | Kansas |
| 9 | Bethel N. Bartlett | 9 | Daughter | — | Kansas |
| 10 | J. Delbert Rockelly | 68 | Head | Farmer | Illinois |
| 11 | Arizona Rockelly | 64 | Wife | — | Illinois |
| 12 | Bertha E. Duncan | 68 | Head | Farmer | Sweden |
| 13 | George H. Duncan THIS PERSON | 31 | Son | Farmer | Kansas |
| 14 | Marie M. Duncan | 29 | Daughter | — | Kansas |
| 15 | Leland D. Bartlett | 36 | Head | Farmer | Kansas |
| 16 | Velma G. Bartlett | 33 | Wife | — | Kansas |
| 17 | Elizabeth H. Bartlett | 8 | Daughter | — | Kansas |
| 18 | Ethel M. Funkhouser | 35 | Lodger | Teacher | Kansas |
| 19 | Charley F. Mason | 35 | Head | Farmer | Kansas |
| 20 | Mildred B. Mason | 31 | Wife | — | Kansas |
| 21 | Marvel L. Mason | 9 | Daughter | — | Kansas |
| 22 | Donald D. Mason | 7 | Son | — | Kansas |
| 23 | Robert A. Mason | 2 | Son | — | Kansas |
| 24 | Harry Bailey | 53 | Head | Farmer | Kansas |
| 25 | Frances R. Bailey | 44 | Wife | — | Kansas |
| 26 | Carol J. Ab Bailey | 21 | Daughter | Housework | Kansas |
| 27 | Gladys Bailey | 20 | Daughter | — | Kansas |
| 28 | Irving H. Ab Bailey | 19 | Son | Farm Laborer | Kansas |
| 29 | Edna G. Bailey | 16 | Daughter | New Worker | Kansas |
| 30 | Jesse M. Mcneil | 47 | Head | Farmer | Kansas |
| 31 | Georgia W. Mcneil | 47 | Wife | — | Kansas |
| 32 | G. Frank Mcneil | 20 | Son | Truck Driver | Kansas |
| 33 | Frank A. Chamberlain | 54 | Head | Farmer | Kansas |
| 34 | Goldie E. Chamberlain | 49 | Wife | — | Kansas |
| 35 | Paul A. Chamberlain | 21 | Son | Farmer | Montana |
| 36 | Violet R. Hoppe | 29 | Lodger | Teacher | Kansas |
| 37 | Edwin J. Clarke | 57 | Head | Farmer | Kansas |
| 38 | Althea Clarke | 57 | Wife | — | Ohio |
| 39 | Leland D. Clarke | 26 | Head | Farmer | Kansas |
| 40 | Ione F. Clarke | 26 | Wife | — | Iowa |
Pedigree Summary
George + 1 sibling
Gen 1 · 2 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)