JD
John Dolan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this John Dolan across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1889), then head of a 4-person household.
Age 51
b. ~1889
Male
Head
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Dolan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Laborer |
| Industry | Pgh City |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 958 |
| Highest Grade | S 8 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Laborer |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1889 |
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 |
|---|---|---|---|---|
| Anna Dolan | Spouse | — | 49 | ~1891 |
| Diana Dolan | Daughter | — | 20 | ~1920 |
| John Dolan | Head | — | 51 | ~1889 |
| Irene Dolan | Daughter | — | 14 | ~1926 |
Census Appearances
1920
Allegheny, Pennsylvania
Other, age 36
Allegheny, Pennsylvania · implied b. ~1884 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dolan |
| Given Name | John H. |
| Relationship to Head | Boarder |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Scotland |
| Year of Immigration | 1886 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Coal Miner |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1930
Allegheny, Pennsylvania
Other, age 43
Allegheny, Pennsylvania · implied b. ~1887 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dolan |
| Given Name | John |
| Relationship to Head | Roomer |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Single |
| Birthplace | Scotland |
| Year of Immigration | 1901 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Miner |
| Industry | Coal Mine |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Allegheny-County, Pennsylvania
Head, age 51
Allegheny-County, Pennsylvania · implied b. ~1889 — 4 household members
| Surname | Dolan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Naturalization Status | Naturalized |
| Occupation | Laborer |
| Industry | Pgh City |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 958 |
| Highest Grade | S 8 |
| 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 Dolan 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 Dolan
Head · 1940 · age 51 · b. ~1889 · 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-t0627-03677-00450)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Frank Vajecki | 61 | Head | Coal Miner | Poland |
| 42 | Mathilda Vajecki | 58 | Wife | — | Poland |
| 43 | Pauline Vajecki | 17 | Daughter | — | Penna |
| 44 | Rose Vajecki | 18 | Niece | — | Penna |
| 45 | James Rohusadames | 26 | Head | Laborer | Penna |
| 46 | Mary Rohusadames | 25 | Wife | — | Penna |
| 47 | James Rohusadames | 2 | Son | — | Penna |
| 48 | Joseph Henry | 57 | Head | Manager | Penna |
| 49 | Mary Henry | 56 | Wife | — | Penna |
| 50 | Louise Henry | 25 | Daughter | — | Penna |
| 51 | Lucille Henry | 20 | Daughter | — | Penna |
| 52 | Joseph Henry | 18 | Son | — | Penna |
| 53 | William Evans | 50 | Head | Laborer | Penna |
| 54 | Stella Evans | 50 | Wife | — | Penna |
| 55 | Margaret Evans | 29 | Daughter | Salesgirl | Penna |
| 56 | James Evans | 28 | Son | Mechanic | Penna |
| 57 | Herbert Stockhausen | 34 | Head | Stone Mason | Germany |
| 58 | Philomena Stockhausen | 31 | Wife | — | Penna |
| 59 | Herbert Stockhausen | 10 | Son | — | Penna |
| 60 | Anna Stockhausen | 9 | Daughter | — | Penna |
| 61 | Mary Stockhausen | 5 | Daughter | — | Penna |
| 62 | John Stockhausen | 3 | Son | — | Penna |
| 63 | Henry Stockhausen | 1 | Son | — | Penna |
| 64 | John Dolan THIS PERSON | 51 | Head | Laborer | Scotland |
| 65 | Anna Dolan | 49 | Wife | — | Ireland |
| 66 | Diana Dolan | 20 | Daughter | Haver-Sack | Penna |
| 67 | Irene Dolan | 14 | Daughter | — | Penna |
| 68 | John Staat | 58 | Head | Machinist | Penna |
| 69 | Henrietta Staat | 59 | Wife | — | Penna |
| 70 | John Jr. Staat | 26 | Son | Checker | Penna |
| 71 | Edward Staat | 21 | Son | — | Penna |
| 72 | Henrietta Newport | 29 | Daughter | Treas. | Penna |
| 73 | Lawrence Newport | 3 | Grandson | — | Penna |
| 74 | Bessie Taylor | 46 | Head | — | Virginia |
| 75 | Howard Taylor | 21 | Son | Clerk | Virginia |
| 76 | James Might | 46 | Bro law | Machinist Helper | Virginia |
| 77 | Steve Sloppolski | 34 | Head | Laborer | Penna |
| 78 | Anna Sloppolski | 28 | Wife | — | Penna |
| 79 | Mary Sloppolski | 8 | Daughter | — | Penna |
| 80 | Josephine Sloppolski | 6 | Daughter | — | Penna |
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)