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John Duncan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lee-County, Mississippi
Our Model Tree links this John Duncan across the 1920, 1930 and 1940 US Censuses in Lee-County, Mississippi (XGBoost, ~Confirmed), with identified parents John & Earl — first a daughter (b.~1916), then head of a 6-person household.
Age 24
b. ~1916
Female
Daughter
Born: Mississippi
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lee-County, Mississippi |
| Surname | Duncan |
| Given Name | John Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Mississippi |
| 1935 Residence (County) | Lee |
| Additional Details | |
| Occupation | 48 |
| Industry | Office Clerk |
| Class of Worker | Central Service |
| Highest Grade | C 4 |
| 1935 Residence | Lee |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
| Occupation | 48 |
| Township / Ward | Beat 4 |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Bettie Duncan | Daughter | — | 7 | ~1933 |
| John Duncan | Daughter | — | 24 | ~1916 |
| John Duncan | Head | — | 58 | ~1882 |
| Price Duncan | Son | — | 13 | ~1927 |
| Will Duncan | Son | — | 20 | ~1920 |
| Earl Duncan | Spouse | — | 47 | ~1893 |
Census Appearances
1920
Lee, Mississippi
Daughter, age 4
Lee, Mississippi · implied b. ~1916 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | John Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Mississippi |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Mississippi |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
1930
Lee, Mississippi
Daughter, age 14
Lee, Mississippi · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | John Rush |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Mississippi |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Mississippi |
| Can Read/Write | Yes |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
1940
Lee-County, Mississippi
Daughter, age 24
Lee-County, Mississippi · implied b. ~1916 — 6 household members
| Surname | Duncan |
| Given Name | John Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Mississippi |
| 1935 Residence (County) | Lee |
| Occupation | 48 |
| Industry | Office Clerk |
| Class of Worker | Central Service |
| Highest Grade | C 4 |
| 1935 Residence | Lee |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
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 John Duncan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Duncan (~0.92 confidence) and mother Earl Duncan (~0.92 confidence) and mother Earl Duncan (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Duncan
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Earl Duncan
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Earl Duncan
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Duncan
Daughter · 1940 · age 24 · b. ~1916 · Mississippi
★ You are viewing this record
Sibling
Bettie Duncan
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Will Duncan
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Price Duncan
Sibling · 1940 · age 13
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 — Lee-County, Mississippi
Open full size
1940 US Federal Census — Lee-County, Mississippi
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02042-00773)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Venie Lowery | 6 | Daughter | — | Mississippi |
| 42 | Buddie Lowery | 3 | Son | — | Mississippi |
| 43 | Bernice Lowery | 1 | Daughter | — | Mississippi |
| 44 | Letha D Barnie | 32 | Head | 48 | Mississippi |
| 45 | Jr Barnie | 14 | Son | — | Mississippi |
| 46 | Lora Barnie | 10 | Daughter | — | Mississippi |
| 47 | Lodger Barnie | 36 | Lodger | 60 | Mississippi |
| 48 | Tom Jr Austin | 39 | Head | 60 | Mississippi |
| 49 | Adonis Austin | 35 | Wife | 48 | Mississippi |
| 50 | Ben A Sheffield | 43 | Head | 60 | Mississippi |
| 51 | Dollie Sheffield | 48 | Sister | — | Mississippi |
| 52 | Elmer L Sheffield | 43 | Brother | — | Mississippi |
| 53 | John Duncan | 58 | Head | 60 | Mississippi |
| 54 | Earl Duncan | 47 | Wife | — | Mississippi |
| 55 | John Ruth Duncan THIS PERSON | 24 | Daughter | 48 | Mississippi |
| 56 | Will H Duncan | 20 | Son | — | Mississippi |
| 57 | Price Duncan | 13 | Son | — | Mississippi |
| 58 | Bettie Joe Duncan | 7 | Daughter | — | Mississippi |
| 59 | Tom Lamb | 63 | Head | 60 | Mississippi |
| 60 | Daisy Lamb | 58 | Wife | — | Mississippi |
| 61 | Quinton Lamb | 39 | Head | 48 | Mississippi |
| 62 | Willie Lou Lamb | 34 | Wife | 60 | Mississippi |
| 63 | Quinton Jr Lamb | 13 | Son | — | Mississippi |
| 64 | Willie Bob Shumpert | 39 | Head | 60 | Mississippi |
| 65 | Annie Lee Shumpert | 25 | Wife | — | Mississippi |
| 66 | Willie Lee Shumpert | 6 | Son | — | Mississippi |
| 67 | John Lee Shumpert | 4 | Son | — | Mississippi |
| 68 | Ad Shumpert | 2 | Son | — | Mississippi |
| 69 | Cloria Shumpert | 24 | Head | 60 | Mississippi |
| 70 | Mariene Shumpert | 24 | Wife | — | Mississippi |
| 71 | Jeff E Burt | 59 | Head | 60 | Mississippi |
| 72 | Hollie Burt | 58 | Wife | — | Mississippi |
| 73 | Earl W Burt | 23 | Son | — | Mississippi |
| 74 | Earnest M Burt | 23 | Son | — | Mississippi |
| 75 | William H Burt | 32 | Head | 48 | Mississippi |
| 76 | Vera Burt | 28 | Wife | — | Mississippi |
| 77 | Mary A Burt | 2 | Daughter | — | Mississippi |
| 78 | Wilfred Morris | 24 | Head | 60 | Mississippi |
| 79 | Avanelle Morris | 26 | Wife | — | Mississippi |
| 80 | Viranell Morris | 2 | Daughter | — | Mississippi |
Related Census Records
Pedigree Summary
John + 3 siblings
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)