MC
Mary Coffey — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Mary Coffey across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1893), then head of a 9-person household.
Age 47
b. ~1893
Female
Spouse
Born: Irish Free State
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Coffey |
| Given Name | Mary |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Newton |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | First papers filed |
| Additional Details | |
| Industry | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birthplace (normalized) | irish free state |
| Township / Ward | Newton |
| Est. Birth Year | ~1893 |
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 |
|---|---|---|---|---|
| Helen Coffey | Daughter | — | 15 | ~1925 |
| Joseph Coffey | Son | — | 8 | ~1932 |
| John Coffey | Son | — | 16 | ~1924 |
| Mary Coffey | Daughter | — | 17 | ~1923 |
| Dennis Coffey | Son | — | 13 | ~1927 |
| Mary Coffey | Spouse | — | 47 | ~1893 |
| Patricia Coffey | Daughter | — | 11 | ~1929 |
| Dennis Coffey | Head | — | 52 | ~1888 |
| Daniel Coffey | Son | — | 6 | ~1934 |
Census Appearances
1930
Middlesex, Massachusetts
Spouse, age 35
Middlesex, Massachusetts · implied b. ~1895 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Coffey |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| Naturalization Status | First papers filed |
| Year of Immigration | 1911 |
| Age at First Marriage | 26 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birthplace (normalized) | irish free state |
1940
Middlesex-County, Massachusetts
Spouse, age 47
Middlesex-County, Massachusetts · implied b. ~1893 — 9 household members
| Surname | Coffey |
| Given Name | Mary |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Newton |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | First papers filed |
| Industry | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birthplace (normalized) | irish free state |
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 Coffey across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Coffey
Spouse · 1940 · age 47 · b. ~1893 · 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-t0627-01614-00112)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Thomas Higgins | 51 | head | Laborer | Mass |
| 42 | Agnes Higgins | 53 | wife | — | Mass |
| 43 | Thomas Higgins | 25 | son | Truck Driver | Mass |
| 44 | John Higgins | 23 | son | Pharmacist | Mass |
| 45 | James Boussar | 25 | head | Construction | Mass |
| 46 | Irene A Boussar | 24 | wife | — | Mass |
| 47 | Ralph Boussar | 7 | son | — | Mass |
| 48 | James Jr Boussar | 4 | son | — | Mass |
| 49 | Dennis Coffey | 52 | head | Longshoreman | Irish Free State |
| 50 | Mary Coffey THIS PERSON | 47 | wife | — | Irish Free State |
| 51 | Mary A Coffey | 17 | daughter | — | Mass |
| 52 | John Coffey | 16 | son | — | Mass |
| 53 | Dennis J Coffey | 13 | son | — | Mass |
| 54 | Helen Coffey | 15 | daughter | — | Mass |
| 55 | Patricia Coffey | 11 | daughter | — | Mass |
| 56 | Joseph Coffey | 8 | son | — | Mass |
| 57 | Daniel Coffey | 6 | son | — | Mass |
| 58 | Anthony Bubbo | 47 | head | Laborer | Italy |
| 59 | Grace Bubbo | 45 | wife | — | Italy |
| 60 | Lucy Bubbo | 18 | daughter | Clerical | Mass |
| 61 | Angelina Bubbo | 17 | daughter | — | Mass |
| 62 | Pasquale Bubbo | 15 | son | — | Mass |
| 63 | Joseph Bubbo | 8 | son | — | Mass |
| 64 | John Bubbo | 6 | son | — | Mass |
| 65 | Agnes Bubbo | 26 | sister in law | — | Italy |
| 66 | Lucy Bubbo | 15 | cousin | — | Mass |
| 67 | Pauline Bubbo | 12 | cousin | — | Mass |
| 68 | Anthony Bubbo | 5 | cousin | — | Mass |
| 69 | Richard Scholey | 37 | head | Driver | Mass |
| 70 | Mary Scholey | 37 | wife | — | Mass |
| 71 | Phyllis Scholey | 14 | daughter | — | Mass |
| 72 | Richard Jr Scholey | 13 | son | — | Mass |
| 73 | Nicola Bitto | 44 | head | Piper | Italy |
| 74 | Mary Bitto | 35 | wife | — | Italy |
| 75 | Marie Bitto | 16 | daughter | — | Mass |
| 76 | Pasquale Bitto | 13 | son | — | Mass |
| 77 | Dominick Bitto | 11 | son | — | Mass |
| 78 | Assunta Bitto | 8 | daughter | — | Mass |
| 79 | Joseph Bitto | 23 | head | Piper Layer | Mass |
| 80 | Jennie Bitto | 19 | wife | — | Mass |
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)