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John Sweeney — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this John Sweeney across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents John & Katherine — first a son (b.~1918), then head of a 3-person household.
Age 22
b. ~1918
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Sweeney |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Laborer |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1000 |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1918 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Constance Sweeney | Daughter | — | 28 | ~1912 |
| Katherine Sweeney | Head | — | 55 | ~1885 |
| John Sweeney | Son | — | 22 | ~1918 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 1
Allegheny, Pennsylvania · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sweeney |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 11
Allegheny, Pennsylvania · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sweeney |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 22
Allegheny-County, Pennsylvania · implied b. ~1918 — 3 household members
| Surname | Sweeney |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Occupation | Laborer |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1000 |
| Highest Grade | H-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 Sweeney across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Sweeney (~0.92 confidence) and mother Katherine Sweeney (~0.92 confidence) and mother Nora Sweeney (~0.92 confidence) and father John Sweeney (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Sweeney
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Katherine Sweeney
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Nora Sweeney
b. ~1889
Source mother
● Household
· direct · ~0.92
Father
John Sweeney
b. ~1891
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Sweeney
Son · 1940 · age 22 · b. ~1918 · Pennsylvania
★ You are viewing this record
Sibling
Constance Sweeney
Sibling · 1940 · age 28
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-t0627-03664-00022)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Catherine M. Reilly | 53 | Wife | — | Pennsylvania |
| 42 | Catherine Reilly | 26 | Daughter | Recreation Leader | Pennsylvania |
| 43 | Rita Marie Reilly | 21 | Daughter | Saleswoman | Pennsylvania |
| 44 | Thomas Reilly | 20 | Son | — | Pennsylvania |
| 45 | William Boyle | 49 | Brother-in-law | — | Pennsylvania |
| 46 | Florence Helgoth | 67 | Head | Teacher | Maryland |
| 47 | Frank Helgoth | 37 | Son | Clerk | Maryland |
| 48 | Paul Kubitz | 30 | Head | Owner - Manager | Lithuania |
| 49 | Rose Kubitz | 30 | Wife | — | Pennsylvania |
| 50 | Donald Kubitz | 7 | Son | — | Pennsylvania |
| 51 | Howard Kubitz | 3 | Son | — | Pennsylvania |
| 52 | Anna Frankel | 19 | Maid | Maid | Pennsylvania |
| 53 | David Wolfson | 32 | Head | Manager | Pennsylvania |
| 54 | Rose Wolfson | 26 | Wife | — | Pennsylvania |
| 55 | Frances Wolfson | 4 | Daughter | — | Pennsylvania |
| 56 | Howard Wolfson | 1 | Son | — | Pennsylvania |
| 57 | Israel Friedman | 52 | Head | Proprietor | Russia |
| 58 | Hattah Friedman | 50 | Wife | — | Russia |
| 59 | Sonia Friedman | 30 | Daughter | Stenographer | Pennsylvania |
| 60 | Reva Friedman | 26 | Daughter | Stenographer | Pennsylvania |
| 61 | Martin Friedman | 13 | Son | — | Pennsylvania |
| 62 | Andrew Mcclure | 40 | Head | Electrical Engineer | Pennsylvania |
| 63 | Thelma Mcclure | 38 | Wife | — | Pennsylvania |
| 64 | Katherine Sweeney | 55 | Head | — | Scotland |
| 65 | Constance Sweeney | 28 | Daughter | Assembler | Pennsylvania |
| 66 | John Sweeney THIS PERSON | 22 | Son | Laborer | Pennsylvania |
| 67 | Bertha Niedhart | 55 | Head | — | Pennsylvania |
| 68 | Dorothy Niedhart | 30 | Daughter | Stenographer | Pennsylvania |
| 69 | Lynn Ramsey | 60 | Head | Auditor | Pennsylvania |
| 70 | Lyndolyn Ramsey | 60 | Wife | — | Pennsylvania |
| 71 | A. C. Anglehart | 80 | Lodger | — | Maryland |
| 72 | George R. Ramsey | 62 | Head | Clerical Work | Pennsylvania |
| 73 | Vincent Passafiume | 51 | Head | Owner - Manager | Italy |
| 74 | Angeline Passafiume | 47 | Wife | — | Italy |
| 75 | Josephine Passafiume | 18 | Daughter | — | Pennsylvania |
| 76 | Salvatore Passafiume | 13 | Son | — | Pennsylvania |
| 77 | Anthony Passafiume | 11 | Son | — | Pennsylvania |
| 78 | Nathan Rosenson | 40 | Head | Insurance Agent | Pennsylvania |
| 79 | Adeline Rosenson | 36 | Wife | — | Pennsylvania |
| 80 | Natalie Rosenson | 13 | Daughter | — | Pennsylvania |
Pedigree Summary
John + 1 sibling
Gen 1 · 4 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)