JD
James Douglas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this James Douglas across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1865), then head of a 3-person household.
Age 75
b. ~1865
Male
Head
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Douglas |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 75 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Pittsburgh City |
| 1935 Residence (County) | Allegheny |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1865 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Catherine Douglas | Daughter | — | 32 | ~1908 |
| James Douglas | Head | — | 75 | ~1865 |
| Catherine Douglas | Spouse | — | 71 | ~1869 |
Census Appearances
1920
Allegheny, Pennsylvania
Head, age 54
Allegheny, Pennsylvania · implied b. ~1866 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Douglas |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1872 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Moulder |
| Industry | Steel Foundry |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth Country | Scotland |
| Year of Naturalization | 1888 |
| Birthplace (normalized) | scotland |
1930
Allegheny, Pennsylvania
Head, age 65
Allegheny, Pennsylvania · implied b. ~1865 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Douglas |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1865 |
| Age at First Marriage | 25 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Steel Melder |
| Industry | Steel Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Scotch |
| Home Owned/Rented | O |
| Home Value / Rent | $6500 |
| Radio Set | R |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Allegheny-County, Pennsylvania
Head, age 75
Allegheny-County, Pennsylvania · implied b. ~1865 — 3 household members
| Surname | Douglas |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 75 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Pittsburgh City |
| 1935 Residence (County) | Allegheny |
| Naturalization Status | Naturalized |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Douglas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Douglas
Head · 1940 · age 75 · b. ~1865 · 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-t0627-03676-00329)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Jeffers | 13 | Son | — | Penna |
| 2 | Charles Smutny | 42 | Head | Laborer | Austria |
| 3 | Mathilda Smutny | 33 | Wife | — | Penna |
| 4 | Raymond Smutny | 11 | Son | — | Penna |
| 5 | Wenzel Smutny | 9 | Son | — | Penna |
| 6 | Oliver H. Linnert | 54 | Head | Stationary Engineer | Penna |
| 7 | Jennette Linnert | 54 | Wife | — | Penna |
| 8 | Marmon Linnert | 18 | Son | New Worker | Penna |
| 9 | William Vollkamp | 51 | Head | Watchman | Penna |
| 10 | Edna Vollkamp | 48 | Wife | — | Penna |
| 11 | Ellsworth Vollkamp | 23 | Son | Clerk | Penna |
| 12 | Howard Vollkamp | 16 | Son | — | Penna |
| 13 | Louis Schaffer | 44 | Head | Craneman | Indiana |
| 14 | Albertina Schaffer | 44 | Wife | — | Penna |
| 15 | Louisa Schaffer | 19 | Daughter | New Worker | Penna |
| 16 | Bertha Schaffer | 17 | Daughter | New Waitress | Penna |
| 17 | Edward Connelly | 31 | Head | Truck Driver | Penna |
| 18 | Marie Connelly | 31 | Wife | — | Penna |
| 19 | Norma Connelly | 1 | Daughter | — | Penna |
| 20 | Emil Theyerich | 51 | Head | Sign Painter | Penna |
| 21 | Anna Theyerich | 50 | Wife | Bookkeeper | Penna |
| 22 | James Shalley | 35 | Lodger | Laborer | Penna |
| 23 | Amos Barbin | 34 | Head | Operator | Penna |
| 24 | Mary V. Barbin | 34 | Wife | — | Scotland |
| 25 | Marion Barbin | 11 | Daughter | — | Penna |
| 26 | William Barbin | 2 | Son | — | Penna |
| 27 | John Mcconahy | 35 | Head | Sales Manager | Penna |
| 28 | Mary Mcconahy | 30 | Wife | — | Penna |
| 29 | Here Ends Block 19 And Begins Block 20 Mcconahy | None | — | — | — |
| 30 | Lillian Fisher | 50 | Head | — | Penna |
| 31 | Ruth C. Fisher | 26 | Daughter | Clerk | Penna |
| 32 | Wilhelmina Fisher | 25 | Daughter | — | Penna |
| 33 | Elizabeth Fisher | 21 | Daughter | Manager | Penna |
| 34 | James Douglas THIS PERSON | 75 | Head | — | Scotland |
| 35 | Catherine Douglas | 71 | Wife | — | Ireland |
| 36 | Catherine Douglas | 32 | Daughter | Grocery Maker | Penna |
| 37 | Anna Majestic | 45 | Head | — | Penna |
| 38 | Rita Majestic | 23 | Daughter | Maid | Penna |
| 39 | Florence Majestic | 21 | Daughter | Secretary | Penna |
| 40 | Sylvia Majestic | 20 | Daughter | — | Penna |
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)