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Mary Mclaughlin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Bristol-County, Massachusetts
Our Model Tree links this Mary Mclaughlin across the 1920, 1930 and 1940 US Censuses in Bristol-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Margaret & Frederick — first a daughter (b.~1899), then head of a 4-person household.
Age 41
b. ~1899
Female
Daughter
Born: Massachusetts
Separated
1940 Census Record Details
| Census Year | 1940 |
| Location | Bristol-County, Massachusetts |
| Surname | McLaughlin |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Separated |
| Birthplace | Massachusetts |
| 1935 Residence (City) | New Bedford City |
| 1935 Residence (County) | Bristol |
| Additional Details | |
| Occupation | Registered Nurse |
| Industry | Public Hospital |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 728 |
| Highest Grade | W 8 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Registered Nurse |
| Township / Ward | New Bedford City |
| Est. Birth Year | ~1899 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Mclaughlin | Daughter | — | 41 | ~1899 |
| Margaret Gordon | Daughter | — | 37 | ~1903 |
| Frederick Mclaughlin | Head | — | 64 | ~1876 |
| William Gordon | Other | — | 42 | ~1898 |
Census Appearances
1920
Bristol, Massachusetts
Daughter, age 21
Bristol, Massachusetts · implied b. ~1899 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McLaughlin |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Speeder |
| Industry | Cotton Mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Bristol, Massachusetts
Daughter, age 31
Bristol, Massachusetts · implied b. ~1899 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mc Laughlin |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Graduate Nurse |
| Industry | Hospital |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Bristol-County, Massachusetts
Daughter, age 41
Bristol-County, Massachusetts · implied b. ~1899 — 4 household members
| Surname | McLaughlin |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Separated |
| Birthplace | Massachusetts |
| 1935 Residence (City) | New Bedford City |
| 1935 Residence (County) | Bristol |
| Occupation | Registered Nurse |
| Industry | Public Hospital |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 728 |
| Highest Grade | W 8 |
| 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 Mclaughlin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Margaret Mclaughlin (~0.92 confidence) and father Frederick Mc Laughlin (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Margaret Mclaughlin
b. ~1873
Source mother
● Household
· direct · ~0.92
Father
Frederick Mc Laughlin
b. ~1875
Source father
● Household
· direct · ~0.92
This person
Anchor record
Mary Mclaughlin
Daughter · 1940 · age 41 · b. ~1899 · Massachusetts
★ You are viewing this record
Sibling
Margaret Gordon
Sibling · 1940 · age 37
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 — Bristol-County, Massachusetts
Open full size
1940 US Federal Census — Bristol-County, Massachusetts
Page Contents
9 people indexed on this census page (nara:1940:m-t0627-01701-00681)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Achille Limacher | 45 | Head | Auto Mechanic | France |
| 42 | Lina Limacher | 41 | Wife | Weaver | France |
| 43 | Pier Jean Claude Limacher | 16 | Son | — | France |
| 44 | George Hart | 25 | Head | Truck Driver | Mass |
| 45 | Mary Hart | 25 | Wife | Laundress | Canada French |
| 46 | Frederick Mclaughlin | 64 | Head | — | England |
| 47 | Mary Mclaughlin THIS PERSON | 41 | Daughter | Registered Nurse | Massachusetts |
| 48 | William Gordon | 42 | Son-in-law | Machinist | Mass |
| 49 | Margaret Gordon | 37 | Daughter | — | Mass |
Pedigree Summary
Mary + 1 sibling
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)