GC
Grace Campbell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Grace Campbell across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1883), then head of a 2-person household.
Age 57
b. ~1883
Female
Head
Born: New Hampshire
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Campbell |
| Given Name | Grace |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Lowell City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Class of Worker | 570 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
| Township / Ward | Lowell City |
| Est. Birth Year | ~1883 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Grace | Age | Birth yr |
|---|---|---|---|---|
| Lillian Campbell | Daughter | — | 25 | ~1915 |
| Grace Campbell | Head | — | 57 | ~1883 |
Census Appearances
1920
Middlesex, Massachusetts
Head, age 37
Middlesex, Massachusetts · implied b. ~1883 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Grace |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | New Hampshire |
| Occupation | Machine Girl |
| Industry | Laundry |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1930
Middlesex, Massachusetts
Head, age 47
Middlesex, Massachusetts · implied b. ~1883 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Grace |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Widowed |
| Birthplace | New Hampshire |
| Age at First Marriage | 24 |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | New Hampshire |
| Occupation | Bookkeeper |
| Industry | Laundry |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 17 |
| Radio Set | R |
| Veteran | No |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1940
Middlesex-County, Massachusetts
Head, age 57
Middlesex-County, Massachusetts · implied b. ~1883 — 2 household members
| Surname | Campbell |
| Given Name | Grace |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Lowell City |
| 1935 Residence (County) | Middlesex |
| Class of Worker | 570 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
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 Grace Campbell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Grace Campbell
Head · 1940 · age 57 · b. ~1883 · 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-t0627-01691-00322)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Donat Morin | 36 | Head | Weaver | Massachusetts |
| 42 | Marie Morin | 34 | Wife | Card Room | Canada-French |
| 43 | Jeanine Morin | 5 | Daughter | — | Massachusetts |
| 44 | Lorraine Morin | 4 | Daughter | — | Massachusetts |
| 45 | Dorothy Morin | 3 | Daughter | — | Massachusetts |
| 46 | Louis A. Piette | 38 | Head | Mill Hand | Massachusetts |
| 47 | Jean Piette | 35 | Wife | Weaver | Massachusetts |
| 48 | Jean Irene Piette | 2 | Daughter | — | Massachusetts |
| 49 | Victoria Piette | 64 | Mother | — | Canada-French |
| 50 | Antonio Ferreira | 38 | Head | Spinner | Portugal |
| 51 | Mary Ferreira | 34 | Wife | Spinner | Portugal |
| 52 | Mary Ferreira | 14 | Daughter | — | Massachusetts |
| 53 | Augustine Ferreira | 13 | Daughter | — | Massachusetts |
| 54 | Joseph Ferreira | 11 | Son | — | Massachusetts |
| 55 | Alda Ferreira | 9 | Daughter | — | Massachusetts |
| 56 | Anthony Ferreira | 7 | Son | — | Massachusetts |
| 57 | John Gouveia | 46 | Head | Card Room | Portugal |
| 58 | Rose Gouveia | 44 | Wife | Spinner | Portugal |
| 59 | Mary Gouveia | 15 | Daughter | — | Massachusetts |
| 60 | John Gouveia | 6 | Son | — | Massachusetts |
| 61 | Raphael Gouveia | 0 | Daughter | — | Massachusetts |
| 62 | Harvey Massert | 36 | Head | Weaver | Massachusetts |
| 63 | Lillian Massert | 37 | Wife | — | Massachusetts |
| 64 | Robert Massert | 1 | Son | — | Massachusetts |
| 65 | Israel Larocque | 46 | Head | Laborer | Massachusetts |
| 66 | Marie Larocque | 44 | Wife | — | Maine |
| 67 | Rose Park | 30 | Daughter | Seamstress | Massachusetts |
| 68 | Henry Park | 0 | Nephew | — | Massachusetts |
| 69 | Grace Campbell THIS PERSON | 57 | Head | — | New Hampshire |
| 70 | Lillian Campbell | 25 | Daughter | House Keeper | Massachusetts |
| 71 | Emma Bougault | 37 | Head | Card Room | Massachusetts |
| 72 | Delvina Bougault | 56 | Mother | House Keeper | Canada-French |
| 73 | Octave Gagnon | 63 | Head | Shoe Maker | Canada-French |
| 74 | Alice Gagnon | 21 | Daughter | Mender | Massachusetts |
| 75 | Raymond Gagnon | 18 | Son | Mill Hand | Massachusetts |
| 76 | Cecile Gagnon | 17 | Daughter | — | Massachusetts |
| 77 | Harvey Boulanger | 32 | Head | Store Clerk | Massachusetts |
| 78 | Rita Boulanger | 20 | Wife | Winder | Massachusetts |
| 79 | Omer Vandenbulcke | 56 | Head | Store Keeper | France |
| 80 | Charles Vandenbulcke | 26 | Son | Truck Driver | 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)