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Mary Mcdonough — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Mcdonough across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1892), then head of a 12-person household.
Age 48
b. ~1892
Female
Spouse
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | McDonough |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Additional Details | |
| Industry | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Boston City |
| Est. Birth Year | ~1892 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Catherine Mcdonough | Daughter | — | 15 | ~1925 |
| Theresa Mcdonough | Daughter | — | 12 | ~1928 |
| Mary Mcdonough | Daughter | — | 20 | ~1920 |
| Stephen Mcdonough | Head | — | 48 | ~1892 |
| John Macauley | Other | — | 6 | ~1934 |
| Robert Macauley | Other | — | 4 | ~1936 |
| Stephen Mcdonough | Son | — | 18 | ~1922 |
| Thomas Mcdonough | Son | — | 6 | ~1934 |
| Martin Mcdonough | Son | — | 19 | ~1921 |
| Joseph Mcdonough | Son | — | 17 | ~1923 |
| Timothy Mcdonough | Son | — | 10 | ~1930 |
| Mary Mcdonough | Spouse | — | 48 | ~1892 |
Census Appearances
1930
Suffolk, Massachusetts
Other, age 40
Suffolk, Massachusetts · implied b. ~1890 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonough |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1910 |
| Age at First Marriage | 27 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Suffolk-County, Massachusetts
Spouse, age 48
Suffolk-County, Massachusetts · implied b. ~1892 — 12 household members
| Surname | McDonough |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Industry | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Mcdonough across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Mcdonough
Spouse · 1940 · age 48 · b. ~1892 · 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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01665-00257)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Irene M Valadkavicius | 17 | Daughter | New Worker | Mass |
| 2 | Harry Wilkins | 49 | Head | Printer | Mass |
| 3 | Frank Wilkins | 36 | Brother | — | Mass |
| 4 | John Macdonald | 49 | Head | Ice Man | Canada English |
| 5 | Julia M Macdonald | 50 | Wife | Housekeeper | Mass |
| 6 | James M Macdonald | 13 | Daughter | — | Mass |
| 7 | Eleanor Macdonald | 11 | Daughter | — | Mass |
| 8 | Marie Macdonald | 9 | Daughter | — | Mass |
| 9 | Morris Healy | 28 | Head | Truck Driver | Mass |
| 10 | Margaret Healy | 24 | Wife | — | Mass |
| 11 | Margaret Healy | 3 | Daughter | — | Mass |
| 12 | Robert F Healy | 0 | Son | — | Mass |
| 13 | Coleman Costello | 36 | Head | Wool Handler | Ireland |
| 14 | Bridget Costello | 37 | Wife | — | Ireland |
| 15 | John J Costello | 8 | Son | — | Mass |
| 16 | James Costello | 6 | Son | — | Mass |
| 17 | Mary Costello | 4 | Daughter | — | Mass |
| 18 | Margaret Costello | 1 | Daughter | — | Mass |
| 19 | Stephen Mcdonough | 48 | Head | Laborer | Ireland |
| 20 | Mary Mcdonough THIS PERSON | 48 | Wife | — | Ireland |
| 21 | Mary Mcdonough | 20 | Daughter | Card Filler | Mass |
| 22 | Martin Mcdonough | 19 | Son | Order Boy | Mass |
| 23 | Stephen Jr. Mcdonough | 18 | Son | — | Mass |
| 24 | Joseph Mcdonough | 17 | Son | — | Mass |
| 25 | Catherine Mcdonough | 15 | Daughter | — | Mass |
| 26 | Theresa Mcdonough | 12 | Daughter | — | Mass |
| 27 | Timothy Mcdonough | 10 | Son | — | Mass |
| 28 | Thomas Mcdonough | 6 | Son | — | Mass |
| 29 | John Macauley | 6 | Brother-in-law | — | Mass |
| 30 | Robert Macauley | 4 | Brother-in-law | — | Mass |
| 31 | Bernard J Byrnes | 42 | Head | Machinist Helper | Mass |
| 32 | Margaret Byrnes | 41 | Wife | — | Mass |
| 33 | William B Byrnes | 17 | Son | — | Mass |
| 34 | Elizabeth Byrnes | 9 | Daughter | — | Mass |
| 35 | Bernard Jr Byrnes | 1 | Son | — | Mass |
| 36 | Thomas J Mitchell | 39 | Head | Bartender | Mass |
| 37 | Cecelia M Waugh | 37 | Sister | Stenographer | Mass |
| 38 | Margaret Breen | 52 | Head | — | Mass |
| 39 | Charles A Lonergan | 20 | Son | Clerk | Mass |
| 40 | William J Hayes | 41 | Head | Laborer | 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)