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John Caldwell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Washington-County, Pennsylvania
Our Model Tree links this John Caldwell across the 1920, 1930 and 1940 US Censuses in Washington-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1896), then head of a 4-person household.
Age 44
b. ~1896
Male
Head
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Pennsylvania |
| Surname | Caldwell |
| Given Name | John Jr. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Donora Boro |
| 1935 Residence (County) | Washington |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Asst. Foreman |
| Industry | Wire Works |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2730 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Asst. Foreman |
| Township / Ward | Donora Boro |
| Est. Birth Year | ~1896 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Caldwell | Daughter | — | 16 | ~1924 |
| John Caldwell | Head | — | 44 | ~1896 |
| John Caldwell | Son | — | 11 | ~1929 |
| Helen Caldwell | Spouse | — | 41 | ~1899 |
Census Appearances
1920
Washington, Pennsylvania
Other, age 23
Washington, Pennsylvania · implied b. ~1897 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Caldwell |
| Given Name | John |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Scotland |
| Year of Immigration | 1909 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Lumber |
| Industry | Steel Works |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Birth Country | Scotland |
| Year of Naturalization | 1919 |
| Birthplace (normalized) | scotland |
1930
Washington, Pennsylvania
Head, age 34
Washington, Pennsylvania · implied b. ~1896 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Caldwell |
| Given Name | John Jr. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1913 |
| Age at First Marriage | 24 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Foreman pipe shop |
| Industry | Amer steel + wire |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 7,500 |
| Radio Set | R |
| Veteran | Yes |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Washington-County, Pennsylvania
Head, age 44
Washington-County, Pennsylvania · implied b. ~1896 — 4 household members
| Surname | Caldwell |
| Given Name | John Jr. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Donora Boro |
| 1935 Residence (County) | Washington |
| Naturalization Status | Naturalized |
| Occupation | Asst. Foreman |
| Industry | Wire Works |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2730 |
| Highest Grade | H-4 |
| 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 John Caldwell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Caldwell
Head · 1940 · age 44 · b. ~1896 · Pennsylvania
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Washington-County, Pennsylvania
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1940 US Federal Census — Washington-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03622-00671)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Louise Novak | 2 | Daughter | — | Pennsylvania |
| 2 | John Jr. Caldwell THIS PERSON | 44 | Head | Asst. Foreman | Scotland |
| 3 | Helen Caldwell | 41 | Wife | — | Pennsylvania |
| 4 | Elizabeth Caldwell | 16 | Daughter | — | Pennsylvania |
| 5 | John W. Caldwell | 11 | Son | — | Pennsylvania |
| 6 | John Caldwell | 70 | Head | Stationary Engineer | Scotland |
| 7 | Mary Caldwell | 64 | Wife | — | Scotland |
| 8 | Andrew Whitefield | 34 | Step-son | Wire Mill | Pennsylvania |
| 9 | Frank Krizelnegg | 52 | Head | Machinist | Austria |
| 10 | Elizabeth Krizelnegg | 37 | Wife | — | Germany |
| 11 | Frank Jr. Krizelnegg | 14 | Son | — | Pennsylvania |
| 12 | John Chatlos | 58 | Head | Wire Drawer | Hungary |
| 13 | Anna Chatlos | 54 | Wife | — | Hungary |
| 14 | Ethel Chatlos | 18 | Daughter | — | Pennsylvania |
| 15 | John Jr. Chatlos | 13 | Son | — | Pennsylvania |
| 16 | Rankin Binley | 45 | Head | Steel Works | Pennsylvania |
| 17 | Florence Binley | 45 | Wife | — | Pennsylvania |
| 18 | Martin Carnegie | 70 | Head | — | Pennsylvania |
| 19 | Elizabeth Carnegie | 67 | Wife | — | England |
| 20 | Ruth Carnegie | 46 | Daughter | — | Indiana |
| 21 | Harold Burlingham | 60 | Head | Zinc Works | New Hampshire |
| 22 | Mary Burlingham | 64 | Wife | — | New York |
| 23 | Otto Patterson | 38 | Head | Construction Co | Pennsylvania |
| 24 | Gladys Patterson | 33 | Wife | — | Maryland |
| 25 | Marjorie Patterson | 6 | Daughter | — | Pennsylvania |
| 26 | Nancy Lee Patterson | 2 | Daughter | — | Pennsylvania |
| 27 | Barry Patterson | 1 | Son | — | Pennsylvania |
| 28 | Leon Schaum | 42 | Head | Chain Store | Pennsylvania |
| 29 | Catherine Schaum | 40 | Wife | — | Pennsylvania |
| 30 | Robert Schaum | 19 | Son | — | Pennsylvania |
| 31 | Dorothy Schaum | 16 | Daughter | — | Pennsylvania |
| 32 | Barbara Ann Schaum | 11 | Daughter | — | Pennsylvania |
| 33 | Robert R. Patterson | 34 | Head | Plant Runner | Pennsylvania |
| 34 | Dorothy Patterson | 30 | Wife | — | Pennsylvania |
| 35 | Philip Patterson | 6 | Son | — | Pennsylvania |
| 36 | Dona Ruth Patterson | 4 | Daughter | — | Pennsylvania |
| 37 | Karen Nita Patterson | 1 | Daughter | — | Pennsylvania |
| 38 | Lester Burkhart | 38 | Head | Rod Mill | Pennsylvania |
| 39 | Clarence Burkhart | 41 | Brother | Wire Mill | Pennsylvania |
| 40 | Jules T. Siren | 32 | Head | Post Office | 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)