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John Crawford — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this John Crawford across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1866), then head of a 3-person household.
Age 74
b. ~1866
Male
Head
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Crawford |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 74 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Lowell |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Blacksmith |
| Industry | S.A. Orr Pack Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1376 |
| Highest Grade | G-8 |
| 1935 Residence | Same Place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Blacksmith |
| Township / Ward | Lowell |
| Est. Birth Year | ~1866 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Crawford | Daughter | — | 40 | ~1900 |
| John Crawford | Head | — | 74 | ~1866 |
| Anne Crawford | Spouse | — | 70 | ~1870 |
Census Appearances
1920
Middlesex, Massachusetts
Head, age 52
Middlesex, Massachusetts · implied b. ~1868 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Crawford |
| Given Name | John D. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1886 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Blacksmith |
| Industry | Ammunition Factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth Country | Scotland |
| Year of Naturalization | 1893 |
| Birthplace (normalized) | scotland |
1930
Middlesex, Massachusetts
Head, age 61
Middlesex, Massachusetts · implied b. ~1869 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Crawford |
| Given Name | John C |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1886 |
| Age at First Marriage | 22 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Blacksmith |
| Industry | Cotton Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 4500 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Middlesex-County, Massachusetts
Head, age 74
Middlesex-County, Massachusetts · implied b. ~1866 — 3 household members
| Surname | Crawford |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 74 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Lowell |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Occupation | Blacksmith |
| Industry | S.A. Orr Pack Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1376 |
| Highest Grade | G-8 |
| 1935 Residence | Same Place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 John Crawford across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Crawford
Head · 1940 · age 74 · b. ~1866 · 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-t0627-01692-00254)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Cora M Whittier | 76 | Head | — | Massachusetts |
| 42 | Charles D Coffin | 41 | Head | Engineer | Massachusetts |
| 43 | Marion Coffin | 40 | Wife | — | Nova Scotia |
| 44 | Donald Coffin | 11 | Son | — | Massachusetts |
| 45 | John Crawford THIS PERSON | 74 | Head | Blacksmith | Scotland |
| 46 | Anne Crawford | 70 | Wife | — | Scotland |
| 47 | Elizabeth Crawford | 40 | Daughter | — | Massachusetts |
| 48 | John Donley | 45 | Head | Yarn Weigher | England |
| 49 | James Donley | 48 | Brother | Cloth Doofer | England |
| 50 | Albert E Anderson | 31 | Head | Dyer | Rhode Island |
| 51 | Mae Anderson | 29 | Wife | — | Massachusetts |
| 52 | Norman Anderson | 5 | Son | — | Massachusetts |
| 53 | John Anderson | 2 | Son | — | Massachusetts |
| 54 | Leslie Dukeshire | 41 | Head | Laborer | Vermont |
| 55 | Jennie Dukeshire | 35 | Wife | — | Massachusetts |
| 56 | Leslie Jr Dukeshire | 1 | Son | — | Massachusetts |
| 57 | Ida M Purington | 83 | Head | — | Maine |
| 58 | Clarence Purington | 59 | Son | — | Maine |
| 59 | Grace Grant | 62 | Lodger | — | Massachusetts |
| 60 | Harriet Dukeshire | 75 | Lodger | — | Maine |
| 61 | Margaret Mcqueeney | 51 | Head | — | Ireland |
| 62 | James Mcqueeney | 21 | Son | Laborer | Massachusetts |
| 63 | Jean Mcqueeney | 20 | Daughter | Clerk | Massachusetts |
| 64 | Barbara Mcqueeney | 13 | Daughter | — | Massachusetts |
| 65 | Shirley Mcqueeney | 12 | Daughter | — | Massachusetts |
| 66 | Mary Mcqueeney | 8 | Daughter | — | Massachusetts |
| 67 | Thomas Galvin | 49 | Uncle | Stationary Fireman | Ireland |
| 68 | Wilfred Laporte | 59 | Head | Draftsman | Canada |
| 69 | Stella Laporte | 50 | Wife | — | New Brunswick |
| 70 | Grace Laporte | 19 | Daughter | Instructor | Massachusetts |
| 71 | Ruth Laporte | 12 | Daughter | — | Massachusetts |
| 72 | Arvin Mills | 53 | Head | Machinist | New Hampshire |
| 73 | Etta Mills | 53 | Wife | — | New Hampshire |
| 74 | James Mcwilliam | 68 | Head | Statcher | England |
| 75 | Mary Mcwilliam | 55 | Wife | Inspector | Ireland |
| 76 | Mabel Heathcock | 50 | Head | Mill Hand | Massachusetts |
| 77 | Harold O'Brien | 42 | Head | Investigator | Massachusetts |
| 78 | Alice O'Brien | 40 | Wife | — | Massachusetts |
| 79 | Mary E O'Brien | 8 | Daughter | — | Massachusetts |
| 80 | Joseph O'Brien | 5 | Son | — | 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)