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John Donohue — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this John Donohue across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Timothy & Daniel — first a head (b.~1909), then head of a 3-person household.
Age 31
b. ~1909
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Donohue |
| Given Name | John A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh City |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | finisher |
| Industry | Electrical Work |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Finisher |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1909 |
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 |
|---|---|---|---|---|
| David Donohue | Son | — | 1 | ~1939 |
| John Donohue | Head | — | 31 | ~1909 |
| Anna Donohue | Spouse | — | 31 | ~1909 |
Census Appearances
Son, age 10
Allegheny, Pennsylvania · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donahue |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 20
Allegheny, Pennsylvania · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donahoe |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Salesman |
| Industry | Grocery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 31
Allegheny-County, Pennsylvania · implied b. ~1909 — 3 household members
| Surname | Donohue |
| Given Name | John A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh City |
| 1935 Residence (County) | Allegheny |
| Occupation | finisher |
| Industry | Electrical Work |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| 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 Donohue across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Timothy Donahoe (~0.92 confidence) and father Daniel Donahue (~0.92 confidence) and mother Mary Donahue (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Timothy Donahoe
b. ~1874
Source father
● Household
· direct · ~0.92
Father
Daniel Donahue
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Mary Donahue
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Donohue
Head · 1940 · age 31 · b. ~1909 · 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-t0627-03657-00514)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Nell Mccarthy | 46 | Wife | File Clerk | Pennsylvania |
| 42 | Here Ends Block 13 And Begins Block 14 | None | — | — | — |
| 43 | Richard Foley | 34 | Head | Auditor | Pennsylvania |
| 44 | John Foley | 36 | Brother | Entertainer | Pennsylvania |
| 45 | Marcella D. Foley | 25 | Sister | — | Wheeling W. Virginia |
| 46 | John A. Donohue THIS PERSON | 31 | Head | Finisher | Pennsylvania |
| 47 | Anna Mary Donohue | 31 | Wife | — | Pennsylvania |
| 48 | David Donohue | 1 | Son | — | Pennsylvania |
| 49 | Frank Zygowski | 48 | Head | Labor | Pennsylvania |
| 50 | Catherine Zygowski | 40 | Wife | Janitress | Pennsylvania |
| 51 | Henry Zygowski | 17 | Son | — | Pennsylvania |
| 52 | Michael T. Stokes | 64 | Head | Proprietor | Pennsylvania |
| 53 | Peter Korba | 28 | Head | Labor | Pennsylvania |
| 54 | Stella Korba | 35 | Wife | Sorter | Pennsylvania |
| 55 | William J. Thomas | 74 | Head | Retired | Wales |
| 56 | Catherine Thomas | 72 | Wife | — | Irish Free State |
| 57 | William W. Thomas | 43 | Son | Clerical | Pennsylvania |
| 58 | Raymond Thomas | 45 | Son | Salesman | Pennsylvania |
| 59 | Marie A. Thomas | 41 | Daughter-in-law | — | Pennsylvania |
| 60 | Norman Regelman | 48 | Head | Plumber | Pennsylvania |
| 61 | Irene Regelman | 47 | Wife | — | Pennsylvania |
| 62 | Donald Regelman | 20 | Son | Usher | Pennsylvania |
| 63 | Dorothy Regelman | 18 | Daughter | Domestic | Pennsylvania |
| 64 | Irene Regelman | 16 | Daughter | — | Pennsylvania |
| 65 | Claire Regelman | 12 | Daughter | — | Pennsylvania |
| 66 | John A. Hesse | 59 | Head | Fireman | Pennsylvania |
| 67 | Matilda K. Hesse | 58 | Wife | — | Pennsylvania |
| 68 | Harry H. Hesse | 30 | Son | Fireman | Pennsylvania |
| 69 | Catherine Leggett | 52 | Sister-in-law | Saleswoman | Pennsylvania |
| 70 | Edward J. Hagner | 29 | Head | Baker | Pennsylvania |
| 71 | Regina J. Hagner | 27 | Wife | — | Pennsylvania |
| 72 | Arthur J. Hagner | 0 | Son | — | Pennsylvania |
| 73 | Harry Hayner | 24 | Head | Truck Driver | Pennsylvania |
| 74 | Frances Hayner | 22 | Wife | — | Pennsylvania |
| 75 | William J. Fibler | 49 | Head | Labor | Pennsylvania |
| 76 | Dorothea Fibler | 55 | Wife | — | Germany |
| 77 | Loretta Johnston | 24 | Daughter | — | Pennsylvania |
| 78 | Alvah Johnston | 27 | Son-in-law | Electrician | Pennsylvania |
| 79 | Alice Johnston | 1 | Granddaughter | — | Pennsylvania |
| 80 | Tillie Fibler | 69 | Head | — | Pennsylvania |
Related Census Records
Pedigree Summary
John
Gen 1 · 3 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)