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John Carey — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this John Carey across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 7-person household.
Age 21
b. ~1919
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Carey |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Checker |
| Industry | Electrical supply |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 940 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Checker |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1919 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Carey | Daughter | — | 16 | ~1924 |
| Anna Carey | Daughter | — | 18 | ~1922 |
| Patrick Carey | Head | — | 54 | ~1886 |
| Joseph Carey | Son | — | 20 | ~1920 |
| Edward Carey | Son | — | 14 | ~1926 |
| John Carey | Son | — | 21 | ~1919 |
| Hanna Carey | Spouse | — | 53 | ~1887 |
Census Appearances
1930
Allegheny, Pennsylvania
Son, age 11
Allegheny, Pennsylvania · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carey |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 21
Allegheny-County, Pennsylvania · implied b. ~1919 — 7 household members
| Surname | Carey |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Occupation | Checker |
| Industry | Electrical supply |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 940 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Carey across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Carey
Son · 1940 · age 21 · b. ~1919 · Pennsylvania
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Sibling
Joseph Carey
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Carey
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Carey
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Carey
Sibling · 1940 · age 18
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 — 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-t0627-03661-00064)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Patrick Carey | 54 | Head | Private Policeman | Ireland |
| 42 | Hanna Carey | 53 | Wife | — | Ireland |
| 43 | John Carey THIS PERSON | 21 | Son | Checker | Pennsylvania |
| 44 | Joseph Carey | 20 | Son | Stockman | Pennsylvania |
| 45 | Anna Carey | 18 | Daughter | New Worker | Pennsylvania |
| 46 | Mary Carey | 16 | Daughter | — | Pennsylvania |
| 47 | Edward Carey | 14 | Son | — | Pennsylvania |
| 48 | Joseph Schafer | 49 | Head | Trolley Operator | Ohio |
| 49 | Alice Schafer | 47 | Wife | — | Ohio |
| 50 | Joseph Schafer | 24 | Son | Dietician | Pennsylvania |
| 51 | Francis Schafer | 18 | Son | — | Pennsylvania |
| 52 | Austin Edwards | 50 | Head | Production Clerk | Pennsylvania |
| 53 | Anna Edwards | 48 | Wife | — | Pennsylvania |
| 54 | Richard Barry | 75 | Head | — | Ireland |
| 55 | Beatrice Topping | 32 | Daughter | Bench Hand | Pennsylvania |
| 56 | Paul Topping | 10 | Son | — | Pennsylvania |
| 57 | David Topping | 9 | Son | — | Pennsylvania |
| 58 | Paul Barry | 45 | Head | Real Estate Maintenance | New York |
| 59 | Myrtle Barry | 43 | Wife | Sales Clerk | Pennsylvania |
| 60 | Helen Barry | 23 | Daughter | Professional Nurse | Pennsylvania |
| 61 | Jane Barry | 21 | Daughter | File Clerk | Pennsylvania |
| 62 | Here Ends Block 40 And Begins 41 | None | — | — | — |
| 63 | William Jenkins | 66 | Head | Machinist Helper | England |
| 64 | Sarah Jenkins | 56 | Wife | — | England |
| 65 | Andrew Marshall | 39 | Head | Machinist | Scotland |
| 66 | Jessie Marshall | 36 | Wife | — | Scotland |
| 67 | George Olson | 34 | Head | Truck Driver | Pennsylvania |
| 68 | Florence Olson | 33 | Wife | — | Pennsylvania |
| 69 | Florence Olson | 17 | Daughter | — | Pennsylvania |
| 70 | Alma Olson | 10 | Daughter | — | Pennsylvania |
| 71 | John R. Clawson | 47 | Head | Gauge Setter | Pennsylvania |
| 72 | Harriet Clawson | 49 | Wife | — | Pennsylvania |
| 73 | Harry Clawson | 20 | Son | Collector | Pennsylvania |
| 74 | Lois Clawson | 17 | Daughter | — | Pennsylvania |
| 75 | Raymond Clawson | 13 | Son | — | Pennsylvania |
| 76 | Albert Clawson | 7 | Son | — | Pennsylvania |
| 77 | Albert Irwin | 21 | Lodger | Brick Layer | Pennsylvania |
| 78 | George Reilly | 46 | Head | Laborer | Pennsylvania |
| 79 | Jean Reilly | 48 | Wife | — | Pennsylvania |
| 80 | Charles Reilly | 23 | Son | Moulder | 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)