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Mary Mclaughlin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Plymouth-County, Massachusetts
Our Model Tree links this Mary Mclaughlin across the 1920, 1930 and 1940 US Censuses in Plymouth-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1870), then head of a 3-person household.
Age 70
b. ~1870
Female
Spouse
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Plymouth-County, Massachusetts |
| Surname | McLaughlin |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 70 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Hingham Town |
| 1935 Residence (County) | Plymouth |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Hingham Town |
| Est. Birth Year | ~1870 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Patrick Mclaughlin | Head | — | 72 | ~1868 |
| Walter Mclaughlin | Son | — | 35 | ~1905 |
| Mary Mclaughlin | Spouse | — | 70 | ~1870 |
Census Appearances
1920
Plymouth, Massachusetts
Spouse, age 50
Plymouth, Massachusetts · implied b. ~1870 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McLaughlin |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Plymouth, Massachusetts
Spouse, age 60
Plymouth, Massachusetts · implied b. ~1870 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McLaughlan |
| Given Name | Mary H |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 24 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Plymouth-County, Massachusetts
Spouse, age 70
Plymouth-County, Massachusetts · implied b. ~1870 — 3 household members
| Surname | McLaughlin |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 70 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Hingham Town |
| 1935 Residence (County) | Plymouth |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| 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 Mclaughlin 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 Mclaughlin
Spouse · 1940 · age 70 · b. ~1870 · 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 — Plymouth-County, Massachusetts
Open full size
1940 US Federal Census — Plymouth-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01638-00238)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Kathleen Kimpton | 19 | Daughter | — | Canada |
| 42 | Margaret Kimpton | 13 | Daughter | — | Massachusetts |
| 43 | Patrick Mclaughlin | 72 | Head | Gardener | Ireland |
| 44 | Mary Mclaughlin THIS PERSON | 70 | Wife | — | Massachusetts |
| 45 | Walter Mclaughlin | 35 | Son | — | Massachusetts |
| 46 | Vital Richard | 66 | Head | Gardener | Canada |
| 47 | Adeline Richard | 66 | Wife | General Worker | Canada |
| 48 | George Carter | 65 | Head | — | New York |
| 49 | Josephine A Carter | 56 | Wife | — | Massachusetts |
| 50 | Viola T Murphy | 33 | Daughter | Proprietor | Massachusetts |
| 51 | John Murphy | 11 | Grandson | — | Massachusetts |
| 52 | Vincenzo Magnoli | 44 | Head | Gardener | Italy |
| 53 | Mary Magnoli | 35 | Wife | — | New York |
| 54 | Violet Magnoli | 16 | Daughter | — | Connecticut |
| 55 | Francis Magnoli | 17 | Son | — | Connecticut |
| 56 | Lucy Magnoli | 14 | Daughter | — | Massachusetts |
| 57 | Natalie Magnoli | 12 | Daughter | — | Massachusetts |
| 58 | Virginia Magnoli | 9 | Daughter | — | Massachusetts |
| 59 | Marjorie Magnoli | 6 | Daughter | — | Massachusetts |
| 60 | Vincent Magnoli | 4 | Son | — | Massachusetts |
| 61 | John Graham | 30 | Head | Cashier | Massachusetts |
| 62 | Mary Graham | 26 | Wife | — | Massachusetts |
| 63 | Joan Graham | 8 | Daughter | — | Massachusetts |
| 64 | Patricia Graham | 7 | Daughter | — | Massachusetts |
| 65 | Barbara Graham | 6 | Daughter | — | Massachusetts |
| 66 | James Nelson | 62 | Head | Stationary Engineer | Virginia |
| 67 | Katherine Nelson | 62 | Wife | — | Massachusetts |
| 68 | Ellen J Stoddard | 75 | Head | — | Massachusetts |
| 69 | Ellen Stoddard | 73 | Wife | — | Massachusetts |
| 70 | Mabelle Williams | 57 | Head | — | Massachusetts |
| 71 | Charles L Williams | 35 | Son | Clerk | Massachusetts |
| 72 | Amadee Comeau | 33 | Head | Mechanic | Canada |
| 73 | Anna D Comeau | 31 | Wife | — | Canada |
| 74 | June Comeau | 3 | Daughter | — | Massachusetts |
| 75 | Harold Church | 50 | Head | Wool Trader | Rhode Island |
| 76 | Anna Church | 51 | Wife | — | Rhode Island |
| 77 | James Free | 42 | Head | Police Officer | Massachusetts |
| 78 | Maybelle Free | 39 | Wife | — | Massachusetts |
| 79 | Joseph Delano | 4 | Boarder | — | Massachusetts |
| 80 | Lois Yankura | 12 | Boarder | — | 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)