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Mary Gibbons — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Mary Gibbons across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 8-person household.
Age 14
b. ~1926
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Gibbons |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Snowden |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Snowden |
| Est. Birth Year | ~1926 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Frank Gibbons | Head | — | 64 | ~1876 |
| Mary Gibbons | Daughter | — | 14 | ~1926 |
| Richard Gibbons | Son | — | 11 | ~1929 |
| Agnes Gibbons | Daughter | — | 17 | ~1923 |
| Isabella Gibbons | Spouse | — | 48 | ~1892 |
| Ruth Gibbons | Daughter | — | 10 | ~1930 |
| Susan Gibbons | Daughter | — | 27 | ~1913 |
| John Gibbons | Son | — | 12 | ~1928 |
Census Appearances
1930
Allegheny, Pennsylvania
Daughter, age 4
Allegheny, Pennsylvania · implied b. ~1926 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gibbons |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Daughter, age 14
Allegheny-County, Pennsylvania · implied b. ~1926 — 8 household members
| Surname | Gibbons |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Snowden |
| 1935 Residence (County) | Allegheny |
| Class of Worker | 0 |
| Highest Grade | 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 Mary Gibbons across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Gibbons
Daughter · 1940 · age 14 · b. ~1926 · Pennsylvania
★ You are viewing this record
Sibling
Ruth Gibbons
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agnes Gibbons
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Susan Gibbons
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Gibbons
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Gibbons
Sibling · 1940 · age 12
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-t0627-03417-00635)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Masko | 19 | Head | Caddy | Pennsylvania |
| 42 | Ann Masko | 17 | Sister | — | Pennsylvania |
| 43 | Mary Masko | 16 | Sister | — | Pennsylvania |
| 44 | Samuel Masko | 15 | Step son | — | Pennsylvania |
| 45 | Dorothy Masko | 14 | Daughter | — | West Virginia |
| 46 | Stephen Masko | 11 | Son | — | Pennsylvania |
| 47 | Frank Gibbons | 64 | Head | Miner | Pennsylvania |
| 48 | Isabella Gibbons | 48 | Wife | — | Pennsylvania |
| 49 | Susan Gibbons | 27 | Daughter | Maid | Pennsylvania |
| 50 | Agnes Gibbons | 17 | Daughter | — | Pennsylvania |
| 51 | Mary Gibbons THIS PERSON | 14 | Daughter | — | Pennsylvania |
| 52 | John Gibbons | 12 | Son | — | Pennsylvania |
| 53 | Richard Gibbons | 11 | Son | — | Pennsylvania |
| 54 | Ruth Gibbons | 10 | Daughter | — | Pennsylvania |
| 55 | Joseph Tosic | 38 | Head | Miner | Pennsylvania |
| 56 | Katherine Tosic | 32 | Wife | — | Pennsylvania |
| 57 | Joseph Tosic | 6 | Son | — | Pennsylvania |
| 58 | George Young | 35 | Head | Miner | Ohio |
| 59 | Ruth Young | 36 | Wife | — | Pennsylvania |
| 60 | Edith Young | 16 | Daughter | — | Pennsylvania |
| 61 | Gwendolyn Young | 15 | Daughter | — | Pennsylvania |
| 62 | Charles Young | 11 | Son | — | Pennsylvania |
| 63 | Thomas Sprecacenere | 43 | Head | Miner | Italy |
| 64 | Margaret Sprecacenere | 31 | Wife | — | Pennsylvania |
| 65 | Margaret Sprecacenere | 12 | Daughter | — | Pennsylvania |
| 66 | Patsy Sprecacenere | 10 | Son | — | Pennsylvania |
| 67 | Mary Catherine Sprecacenere | 9 | Daughter | — | Pennsylvania |
| 68 | Gerry Sprecacenere | 8 | Son | — | Italy |
| 69 | Thomas Jr. Sprecacenere | 5 | Son | — | Pennsylvania |
| 70 | Theodore Wilderman | 55 | Head | Miner | Pennsylvania |
| 71 | Lottie Wilderman | 21 | Wife | — | Maryland |
| 72 | Theodore Jr. Wilderman | 4 | Son | — | Pennsylvania |
| 73 | Peter Wilderman | 74 | Father | — | Pennsylvania |
| 74 | Walter Kriebel | 35 | Head | Laborer | Pennsylvania |
| 75 | Dorothy Kriebel | 39 | Wife | — | Pennsylvania |
| 76 | Harold Kriebel | 15 | Son | — | Pennsylvania |
| 77 | Thomas Kriebel | 10 | Son | — | Pennsylvania |
| 78 | Dolores Kriebel | 8 | Daughter | — | Pennsylvania |
| 79 | Le Roy Kriebel | 6 | Son | — | Pennsylvania |
| 80 | Donald Kriebel | 4 | Son | — | Pennsylvania |
Related Census Records
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)