WB
William Barrett — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this William Barrett across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Mary — first a head (b.~1904), then head of a 5-person household.
Age 36
b. ~1904
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Barrett |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh city |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Laborer |
| Industry | Construction |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 988 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1904 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| William Barrett | Head | — | 36 | ~1904 |
| William Barrett | Son | — | 9 | ~1931 |
| Joseph Barrett | Son | — | 6 | ~1934 |
| John Barrett | Son | — | 10 | ~1930 |
| Genevieve Barrett | Spouse | — | 34 | ~1906 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 14
Allegheny, Pennsylvania · implied b. ~1906 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Barrett |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Head, age 24
Allegheny, Pennsylvania · implied b. ~1906 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Barrett |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 21 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Bookkeeper |
| Industry | Bank |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | $30 |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 36
Allegheny-County, Pennsylvania · implied b. ~1904 — 5 household members
| Surname | Barrett |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh city |
| 1935 Residence (County) | Allegheny |
| Occupation | Laborer |
| Industry | Construction |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 988 |
| Highest Grade | No 8 |
| 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 William Barrett across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Barrett (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Barrett
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Barrett
Head · 1940 · age 36 · b. ~1904 · 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-t0627-03675-00632)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Mcgrath | 59 | Head | Watchman | Eire |
| 2 | Helen Sincore | 36 | Head | — | Pennsylvania |
| 3 | Mary Sincore | 40 | Sister | Bottler | Pennsylvania |
| 4 | John Spirnak | 28 | Head | Insulator Cutter | Pennsylvania |
| 5 | Anna Spirnak | 25 | Wife | — | Pennsylvania |
| 6 | John Spirnak | 3 | Son | — | Pennsylvania |
| 7 | Richard Spirnak | 1 | Son | — | Pennsylvania |
| 8 | Anna Voelker | 47 | Head | — | Pennsylvania |
| 9 | Donald Voelker | 11 | Son | — | Pennsylvania |
| 10 | Bernadette Voelker | 9 | Daughter | — | Pennsylvania |
| 11 | Marlene Voelker | 7 | Daughter | — | Pennsylvania |
| 12 | Gerald Voelker | 4 | Son | — | Pennsylvania |
| 13 | Declan Jaehne | 21 | Son | Assembler | Pennsylvania |
| 14 | William Jaehne | 15 | Son | — | Pennsylvania |
| 15 | Anthony Mihalich | 26 | Head | Laborer | Pennsylvania |
| 16 | Anna Mihalich | 31 | Wife | — | Pennsylvania |
| 17 | Robert Mihalich | 15 | Son | — | Pennsylvania |
| 18 | Maryann Mihalich | 0 | Daughter | — | Pennsylvania |
| 19 | Andrew Curick | 60 | Head | Laborer | Poland |
| 20 | Anna Curick | 50 | Wife | — | Pennsylvania |
| 21 | Lawrence Curick | 18 | Son | New Worker | Pennsylvania |
| 22 | John Curick | 14 | Son | — | Pennsylvania |
| 23 | August Janke | 42 | Head | Plasterer | Pennsylvania |
| 24 | Lillian Janke | 37 | Wife | — | Pennsylvania |
| 25 | August Janke | 18 | Son | Film Inspector | Pennsylvania |
| 26 | Melvin Janke | 14 | Son | — | Pennsylvania |
| 27 | Marie Mccall | 37 | Lodger | Housework | Pennsylvania |
| 28 | John Miller | 28 | Head | Shipper | Pennsylvania |
| 29 | Caroline Miller | 26 | Wife | — | Ohio |
| 30 | John Jr. Miller | 5 | Son | — | Pennsylvania |
| 31 | William Barrett THIS PERSON | 36 | Head | Laborer | Pennsylvania |
| 32 | Genevieve Barrett | 34 | Wife | — | Pennsylvania |
| 33 | John Barrett | 10 | Son | — | Pennsylvania |
| 34 | William Barrett | 9 | Son | — | Pennsylvania |
| 35 | Joseph Barrett | 6 | Son | — | Pennsylvania |
| 36 | Ann Barrett | 45 | Head | Saleslady | Pennsylvania |
| 37 | Margaret Keefe | 69 | Head | — | Eire |
| 38 | Michael Keefe | 30 | Son | Clerk | Pennsylvania |
| 39 | Nora Keefe | 26 | Daughter | Stenographer | Pennsylvania |
| 40 | John Connolly | 50 | Head | Laborer | Pennsylvania |
Pedigree Summary
William
Gen 1 · 1 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)