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Charles Duncan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Charles Duncan across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1894), then head of a 5-person household.
Age 46
b. ~1894
Male
Head
Born: West Virginia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Duncan |
| Given Name | Charles E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | West Virginia |
| 1935 Residence (City) | McKees Rocks |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Brakeman |
| Industry | Railroad Co. |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 418 |
| Highest Grade | No |
| 1935 Residence | Same place |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
| Occupation | Brakeman |
| Township / Ward | Mckees Rocks |
| Est. Birth Year | ~1894 |
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 Charles | Age | Birth yr |
|---|---|---|---|---|
| Mirabelle Duncan | Daughter | — | 13 | ~1927 |
| Charles Duncan | Head | — | 46 | ~1894 |
| Charles Duncan | Son | — | 11 | ~1929 |
| John Duncan | Son | — | 10 | ~1930 |
| Blanche Duncan | Spouse | — | 31 | ~1909 |
Census Appearances
1920
Allegheny, Pennsylvania
Other, age 25
Allegheny, Pennsylvania · implied b. ~1895 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | Charles E. |
| Relationship to Head | Step Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | West Virginia |
| Father's Birthplace | West Virginia |
| Mother's Birthplace | Ohio |
| Occupation | Brakeman |
| Industry | Railroad |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
1930
Allegheny, Pennsylvania
Head, age 36
Allegheny, Pennsylvania · implied b. ~1894 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | Charles E |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | West Virginia |
| Age at First Marriage | 25 |
| Father's Birthplace | West Virginia |
| Mother's Birthplace | West Virginia |
| Occupation | Brakeman |
| Industry | Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 30 |
| Veteran | No |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
1940
Allegheny-County, Pennsylvania
Head, age 46
Allegheny-County, Pennsylvania · implied b. ~1894 — 5 household members
| Surname | Duncan |
| Given Name | Charles E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | West Virginia |
| 1935 Residence (City) | McKees Rocks |
| 1935 Residence (County) | Allegheny |
| Occupation | Brakeman |
| Industry | Railroad Co. |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 418 |
| Highest Grade | No |
| 1935 Residence | Same place |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
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 Charles Duncan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Charles Duncan
Head · 1940 · age 46 · b. ~1894 · Pennsylvania
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03410-00281)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Elizabeth Pughie | 22 | Daughter | Housework | Pennsylvania |
| 42 | Anna Mary Pughie | 13 | Daughter | — | Pennsylvania |
| 43 | Margaret Pughie | 7 | Daughter | — | Pennsylvania |
| 44 | Mary Pughie | 52 | Sister | Janitress | Maryland |
| 45 | Clarence Thier | 23 | Nephew | Laborer | Pennsylvania |
| 46 | Steve Thurme | 24 | Head | Car Repairman | Pennsylvania |
| 47 | Kathryn Thurme | 25 | Wife | — | Pennsylvania |
| 48 | Kathryn Thurme | 3 | Daughter | — | Pennsylvania |
| 49 | Edward Thurme | 1 | Son | — | Pennsylvania |
| 50 | John Tufnager | 33 | Head | Crane Operater | Pennsylvania |
| 51 | Gertrude Tufnager | 27 | Wife | — | Pennsylvania |
| 52 | Gertrude Tufnager | 4 | Daughter | — | Pennsylvania |
| 53 | John M. Tufnager | 3 | Son | — | Pennsylvania |
| 54 | Lorene Tufnager | 1 | Daughter | — | Pennsylvania |
| 55 | Margaret Kotter | 18 | Helper | — | Pennsylvania |
| 56 | Edward Beck | 38 | Head | Laborer | Pennsylvania |
| 57 | Margaret Beck | 30 | Wife | — | Pennsylvania |
| 58 | Edward Jr. Beck | 12 | Son | — | Pennsylvania |
| 59 | Albert Beck | 9 | Son | — | Pennsylvania |
| 60 | Margaret Beck | 6 | Daughter | — | Pennsylvania |
| 61 | Mary Lou Beck | 5 | Daughter | — | Pennsylvania |
| 62 | Julius Frankeny | 54 | Head | Foreman | Italy |
| 63 | Gertrude Frankeny | 51 | Wife | — | Pennsylvania |
| 64 | Ada Frankeny | 20 | Daughter | Stenographer | Pennsylvania |
| 65 | Grace Frankeny | 19 | Daughter | Check Girl | Pennsylvania |
| 66 | Robert Frankeny | 12 | Son | — | Pennsylvania |
| 67 | Albert Frankeny | 10 | Son | — | Pennsylvania |
| 68 | Gilbert Frankeny | 7 | Son | — | Pennsylvania |
| 69 | Robert Kunkle | 33 | Head | Mechanic | Pennsylvania |
| 70 | Gertrude Kunkle | 30 | Wife | — | Pennsylvania |
| 71 | Robert Jr. Kunkle | 7 | Son | — | Pennsylvania |
| 72 | Donald Kunkle | 6 | Son | — | Pennsylvania |
| 73 | Richard Kunkle | 2 | Son | — | Pennsylvania |
| 74 | Cathryn Kunkle | 53 | Head | — | Pennsylvania |
| 75 | Gertrude Kunkle | 28 | Daughter | Maid | Pennsylvania |
| 76 | Charles E. Duncan THIS PERSON | 46 | Head | Brakeman | West Virginia |
| 77 | Blanche A. Duncan | 31 | Wife | — | Pennsylvania |
| 78 | Mirabelle Duncan | 13 | Daughter | — | Pennsylvania |
| 79 | Charles Jr. Duncan | 11 | Son | — | Pennsylvania |
| 80 | John Duncan | 10 | Son | — | Pennsylvania |
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)