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Mary Gibbons — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Mary Gibbons across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1919), then head of a 8-person household.
Age 21
b. ~1919
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Gibbons |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Some place |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Bookkeeper |
| Industry | Business House |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1000 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Bookkeeper |
| Township / Ward | Everett City |
| Est. Birth Year | ~1919 |
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 |
|---|---|---|---|---|
| Thomas Gibbons | Son | — | 10 | ~1930 |
| Dorothy Gibbons | Daughter | — | 15 | ~1925 |
| Rose Gibbons | Daughter | — | 17 | ~1923 |
| Mary Gibbons | Daughter | — | 21 | ~1919 |
| Nora Gibbons | Spouse | — | 54 | ~1886 |
| Anna Gibbons | Daughter | — | 17 | ~1923 |
| Thomas Gibbons | Head | — | 56 | ~1884 |
| Rita Gibbons | Daughter | — | 23 | ~1917 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 10
Suffolk, Massachusetts · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gibbons |
| Given Name | Margaret |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Irish Free State |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Daughter, age 21
Middlesex-County, Massachusetts · implied b. ~1919 — 8 household members
| Surname | Gibbons |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Some place |
| 1935 Residence (County) | Middlesex |
| Occupation | Bookkeeper |
| Industry | Business House |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1000 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 21 · b. ~1919 · Massachusetts
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Sibling
Thomas Gibbons
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Gibbons
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Gibbons
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Gibbons
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Gibbons
Sibling · 1940 · age 15
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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01604-00685)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Percy Hatch | 39 | Head | Painter | Newfoundland |
| 42 | Evely P. Hatch | 33 | Wife | — | Canada English |
| 43 | Gordon Hatch | 12 | Son | — | Massachusetts |
| 44 | Arthur Hatch | 11 | Son | — | Massachusetts |
| 45 | Marion Hatch | 6 | Daughter | — | Massachusetts |
| 46 | James Hatch | 4 | Son | — | Massachusetts |
| 47 | John J. Shaw | 55 | Head | Carpenter | Newfoundland |
| 48 | Catherine Shaw | 45 | Wife | — | Newfoundland |
| 49 | Margaret Shaw | 24 | Daughter | Waitress | Canada English |
| 50 | Helen Shaw | 14 | Daughter | Maid | Canada English |
| 51 | William Shaw | 16 | Son | — | Massachusetts |
| 52 | James Shaw | 11 | Son | — | Massachusetts |
| 53 | Theresa Shaw | 8 | Daughter | — | Massachusetts |
| 54 | Robert Shaw | 6 | Son | — | Massachusetts |
| 55 | Walter Shaw | 5 | Son | — | Massachusetts |
| 56 | Delores Shaw | 1 | Daughter | — | Massachusetts |
| 57 | John Shaw | 1 | Son | — | Massachusetts |
| 58 | Thomas Gibbons | 56 | Head | Watchman | Eire |
| 59 | Nora Gibbons | 54 | Wife | — | Eire |
| 60 | Rita Gibbons | 23 | Daughter | Stenographer | Massachusetts |
| 61 | Mary Gibbons THIS PERSON | 21 | Daughter | Bookkeeper | Massachusetts |
| 62 | Rose Gibbons | 17 | Daughter | — | Massachusetts |
| 63 | Anna Gibbons | 17 | Daughter | — | Massachusetts |
| 64 | Dorothy Gibbons | 15 | Daughter | — | Massachusetts |
| 65 | Thomas Gibbons | 10 | Son | — | Massachusetts |
| 66 | Harold T. Flynn | 65 | Head | Blind | Massachusetts |
| 67 | Elizabeth Flynn | 30 | Daughter | Clerk | Massachusetts |
| 68 | Aaron Schoenfeld | 43 | Head | Foreman | Poland |
| 69 | Pearl Schoenfeld | 38 | Wife | — | Poland |
| 70 | Norman Schoenfeld | 18 | Son | — | New York |
| 71 | Rita Schoenfeld | 9 | Daughter | — | New York |
| 72 | Catherine Brennan | 59 | Head | Charwoman | Ireland |
| 73 | Mary Brennan | 28 | Daughter | Biller | Massachusetts |
| 74 | James Brennan | 32 | Son | Foreman | Massachusetts |
| 75 | Joseph Brennan | 26 | Son | Chauffeur | Massachusetts |
| 76 | Catherine V. Brennan | 23 | Daughter | Laborer | Massachusetts |
| 77 | Patricia F. Brennan | 4 | Daughter | — | Massachusetts |
| 78 | John Thistle | 54 | Head | Laborer | Newfoundland |
| 79 | Susanna Thistle | 52 | Wife | — | Newfoundland |
| 80 | Arnold Holmes | 53 | Head | — | Georgia |
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)