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Mary Boyle — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Mary Boyle across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 9-person household.
Age 10
b. ~1930
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Boyle |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Everett City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Everett City |
| Est. Birth Year | ~1930 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Boyle | Daughter | — | 10 | ~1930 |
| Anne Boyle | Daughter | — | 2 | ~1938 |
| Eileen Boyle | Daughter | — | 7 | ~1933 |
| Catherine Boyle | Daughter | — | 9 | ~1931 |
| James Boyle | Head | — | 39 | ~1901 |
| John Boyle | Son | — | 5 | ~1935 |
| James Boyle | Son | — | 12 | ~1928 |
| Richard Boyle | Son | — | 3 | ~1937 |
| Anne Boyle | Spouse | — | 35 | ~1905 |
Census Appearances
1930
Middlesex, Massachusetts
Daughter, age
Middlesex, Massachusetts · implied b. ~1930 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Boyles |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Daughter, age 10
Middlesex-County, Massachusetts · implied b. ~1930 — 9 household members
| Surname | Boyle |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Everett City |
| 1935 Residence (County) | Middlesex |
| Highest Grade | No 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 Boyle across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Boyle
Daughter · 1940 · age 10 · b. ~1930 · Massachusetts
★ You are viewing this record
Sibling
Anne Boyle
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eileen Boyle
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Boyle
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Boyle
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Boyle
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Boyle
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 — 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-t0627-01604-00742)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Louis Collari | 31 | Head | Caretaker | Massachusetts |
| 2 | Ida Collari | 27 | Daughter | — | Massachusetts |
| 3 | Richard G. Collari | 1 | Grandson | — | Massachusetts |
| 4 | Silas B. Hawes | 73 | Head | — | Maine |
| 5 | Laura R. Hawes | 74 | Wife | — | Maine |
| 6 | William S. Bond | 65 | Head | — | Ohio |
| 7 | Minnie M. Bond | 55 | Wife | — | Ohio |
| 8 | Mary L. Bond | 31 | Daughter | Primary School Teacher | Massachusetts |
| 9 | Elizabeth Bond | 21 | Daughter | — | Massachusetts |
| 10 | Charles H. Golden | 60 | Head | Electric Crane Operator | New York |
| 11 | Catherine Golden | 65 | Wife | — | Ireland |
| 12 | Charles M. Golden | 31 | Son | Architectural Draftsman | Massachusetts |
| 13 | Felix Maguire | 46 | Head | Laborer | Ireland |
| 14 | Mary O. Maguire | 46 | Wife | — | Ireland |
| 15 | Edward Maguire | 17 | Son | — | Massachusetts |
| 16 | Mary Maguire | 15 | Daughter | — | Massachusetts |
| 17 | Emily Maguire | 12 | Daughter | — | Massachusetts |
| 18 | Peter Fantasia | 32 | Head | Wood Handler | Italy |
| 19 | Lucy Fantasia | 31 | Wife | — | Italy |
| 20 | Phyllis Fantasia | 6 | Daughter | — | Massachusetts |
| 21 | Vincent Fantasia | 3 | Son | — | Massachusetts |
| 22 | George Mullins | 42 | Head | Shoe Salesman | Massachusetts |
| 23 | Marie Mullins | 36 | Wife | — | England |
| 24 | George Mullins | 7 | Son | — | Massachusetts |
| 25 | Angelo De Sylvester | 48 | Head | Cobbler | Italy |
| 26 | Hilda De Sylvester | 38 | Wife | Stitcher | Italy |
| 27 | Nino De Sylvester | 14 | Son | — | Italy |
| 28 | Lillian De Sylvester | 11 | Daughter | — | Massachusetts |
| 29 | William Marino | 30 | Head | Barber | Massachusetts |
| 30 | Marie Marino | 27 | Wife | — | Massachusetts |
| 31 | James Boyle | 39 | Head | Pipe Fitter | Ireland |
| 32 | Anne Boyle | 35 | Wife | — | Ireland |
| 33 | James Boyle | 12 | Son | — | Massachusetts |
| 34 | Mary Boyle THIS PERSON | 10 | Daughter | — | Massachusetts |
| 35 | Catherine Boyle | 9 | Daughter | — | Massachusetts |
| 36 | Eileen Boyle | 7 | Daughter | — | Massachusetts |
| 37 | John Boyle | 5 | Son | — | Massachusetts |
| 38 | Richard Boyle | 3 | Son | — | Massachusetts |
| 39 | Anne Boyle | 2 | Daughter | — | Massachusetts |
| 40 | Michael J. Mcateer | 32 | Head | Store Manager | Northern Ireland |
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)