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Mary Boyd — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Mary Boyd across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1898), then head of a 5-person household.
Age 42
b. ~1898
Female
Spouse
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Boyd |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Middlesex |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Est. Birth Year | ~1898 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| James Boyd | Head | — | 46 | ~1894 |
| Charles Boyd | Son | — | 4 | ~1936 |
| Donald Boyd | Son | — | 10 | ~1930 |
| Clifford Boyd | Son | — | 19 | ~1921 |
| Mary Boyd | Spouse | — | 42 | ~1898 |
Census Appearances
1920
Middlesex, Massachusetts
Spouse, age 22
Middlesex, Massachusetts · implied b. ~1898 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Boyd |
| Given Name | Mary F |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Germany |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Spouse, age 32
Middlesex, Massachusetts · implied b. ~1898 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Boyd |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 19 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | England |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Spouse, age 42
Middlesex-County, Massachusetts · implied b. ~1898 — 5 household members
| Surname | Boyd |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Middlesex |
| 1935 Residence (County) | Middlesex |
| Highest Grade | H-1 |
| 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 Boyd across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Boyd
Spouse · 1940 · age 42 · b. ~1898 · Massachusetts
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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-t0627-01601-00957)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lindsay Demetteo | 24 | Lodger | Wood Worker | Massachusetts |
| 42 | Richard Powers | 52 | Head | Ins Agt | Massachusetts |
| 43 | Mary Powers | 47 | Wife | — | Massachusetts |
| 44 | Richard Powers | 22 | Son | Warehouse | Massachusetts |
| 45 | Louis Powers | 19 | Son | Attendant | Massachusetts |
| 46 | Barbara Powers | 17 | Daughter | — | Massachusetts |
| 47 | Florence Powers | 15 | Daughter | — | Massachusetts |
| 48 | Ruth Powers | 12 | Daughter | — | Massachusetts |
| 49 | Robert Powers | 5 | Son | — | Massachusetts |
| 50 | Mario Pihpetti | 43 | Head | Contractor | Italy |
| 51 | Palmida Pihpetti | 37 | Wife | — | Italy |
| 52 | Arnold Pihpetti | 16 | Son | — | Massachusetts |
| 53 | Mede Cloutier | 53 | Head | Salesman | Maine |
| 54 | Mary Cloutier | 49 | Wife | — | Mass |
| 55 | Jane Mcpherson | 75 | Mother-in-law | — | England |
| 56 | William Romney | 47 | Head | Salesman | Rhode Island |
| 57 | John Romney | 19 | Son | — | Massachusetts |
| 58 | Gertrude Romney | 17 | Daughter | — | Massachusetts |
| 59 | Anita Romney | 15 | Daughter | — | Massachusetts |
| 60 | Frances Romney | 14 | Daughter | — | Massachusetts |
| 61 | Grace Tenney | 55 | Sister | Housekeeper | Massachusetts |
| 62 | James Boyd | 46 | Head | Officer | Massachusetts |
| 63 | Mary Boyd THIS PERSON | 42 | Wife | — | Massachusetts |
| 64 | Clifford Boyd | 19 | Son | — | Massachusetts |
| 65 | Donald Boyd | 10 | Son | — | Massachusetts |
| 66 | Charles Boyd | 4 | Son | — | Massachusetts |
| 67 | Alexander Gray | 62 | Head | Baker | Scotland |
| 68 | Georgina Gray | 60 | Wife | — | Scotland |
| 69 | Allan Griffin | 65 | Head | — | Canada English |
| 70 | Minnie Griffin | 72 | Wife | — | Canada English |
| 71 | Alexander Gray | 43 | Head | Upholsterer | Scotland |
| 72 | Alice Gray | 39 | Wife | — | Massachusetts |
| 73 | Allan Gray | 17 | Son | — | Massachusetts |
| 74 | Donald Gray | 14 | Son | — | Massachusetts |
| 75 | George Dasevos | 44 | Head | Truck Driver | Greece |
| 76 | Ideline Dasevos | 31 | Wife | — | Massachusetts |
| 77 | Eleanor Dasevos | 7 | Daughter | — | Massachusetts |
| 78 | Dorothy Dasevos | 1 | Daughter | — | Massachusetts |
| 79 | Charles Austin | 54 | Head | Painter | Massachusetts |
| 80 | Florence Austin | 47 | Wife | — | Massachusetts |
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)