MC
Mary Collins — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Mary Collins across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1889), then head of a 4-person household.
Age 51
b. ~1889
Female
Spouse
Born: England
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Collins |
| Given Name | Mary G. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Everett City |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth Country | England |
| Birthplace (normalized) | england |
| Township / Ward | Everett City |
| Est. Birth Year | ~1889 |
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 |
|---|---|---|---|---|
| Theresa Collins | Daughter | — | 30 | ~1910 |
| Mayette Collins | Daughter | — | 23 | ~1917 |
| Patrick Collins | Head | — | 51 | ~1889 |
| Mary Collins | Spouse | — | 51 | ~1889 |
Census Appearances
1920
Middlesex, Massachusetts
Spouse, age 34
Middlesex, Massachusetts · implied b. ~1886 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Collins |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | England |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Twister |
| Industry | Cotton mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Birthplace (normalized) | england |
1930
Middlesex, Massachusetts
Spouse, age 43
Middlesex, Massachusetts · implied b. ~1887 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Collins |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1900 |
| Age at First Marriage | 19 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Middlesex-County, Massachusetts
Spouse, age 51
Middlesex-County, Massachusetts · implied b. ~1889 — 4 household members
| Surname | Collins |
| Given Name | Mary G. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Everett City |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Class of Worker | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth Country | England |
| Birthplace (normalized) | england |
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 Collins 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 Collins
Spouse · 1940 · age 51 · b. ~1889 · 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-t0627-01604-00665)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Harry S. Stoller | 33 | Head | Doctor | Massachusetts |
| 42 | Edith Stoller | 25 | Wife | — | Massachusetts |
| 43 | Leander Lothier | 47 | Head | Engineer | Canada |
| 44 | Maud Lothier | 40 | Wife | — | Massachusetts |
| 45 | Joseph S. Lothier | 18 | Son | — | Massachusetts |
| 46 | Francis Lothier | 14 | Son | — | Massachusetts |
| 47 | Theresa Lothier | 9 | Daughter | — | Massachusetts |
| 48 | Cenna L. Lothier | 6 | Daughter | — | Massachusetts |
| 49 | Eleanor Herveau | 15 | Lodger | — | Massachusetts |
| 50 | Martin Le Blanc | 27 | Lodger | Fish Stripper | French Canada |
| 51 | John A. Crawford | 28 | Head | Laborer | California |
| 52 | Ingrid M. Crawford | 25 | Wife | — | Massachusetts |
| 53 | John A. Jr. Crawford | 5 | Son | — | Massachusetts |
| 54 | Rowland E. Crawford | 2 | Son | — | Massachusetts |
| 55 | Amos Coates | 41 | Head | Milk Man | Massachusetts |
| 56 | Anna Coates | 41 | Wife | — | Massachusetts |
| 57 | Clifton Coates | 8 | Son | — | Massachusetts |
| 58 | Richard Nihan | 45 | Head | Salesman | Massachusetts |
| 59 | Mary Nihan | 44 | Wife | — | Massachusetts |
| 60 | Anna Nihan | 22 | Daughter | Salesgirl | Massachusetts |
| 61 | Leo Nihan | 17 | Son | — | Massachusetts |
| 62 | Richard Nihan | 12 | Son | — | Massachusetts |
| 63 | Caroline Mccool | 64 | Head | Cleaner | Massachusetts |
| 64 | William J. Mccool | 67 | Husband | Porter | Massachusetts |
| 65 | William J. Jr. Mccool | 39 | Son | Salesman Battery | Massachusetts |
| 66 | Gertrude Mccool | 40 | Daughter in law | — | Massachusetts |
| 67 | Eleanor Mccool | 17 | Daughter | — | Massachusetts |
| 68 | William J. Mccool | 14 | Grandson | — | Massachusetts |
| 69 | Maryanne Mccool | 6 | Granddaughter | — | Massachusetts |
| 70 | Clifford Markham | 42 | Head | Chauffeur | Massachusetts |
| 71 | Florence Markham | 40 | Wife | — | Massachusetts |
| 72 | Clifford Markham | 16 | Son | — | Massachusetts |
| 73 | Annette Markham | 77 | Mother | — | Canada |
| 74 | Catherine Hickey | 66 | Head | — | Free State Ireland |
| 75 | Albert E. Hickey | 43 | Son | Tester | Massachusetts |
| 76 | Richard E. Hickey | 32 | Son | Teacher | Massachusetts |
| 77 | Patrick J. Collins | 51 | Head | Newspaper | Rhode Island |
| 78 | Mary G. Collins THIS PERSON | 51 | Wife | — | England |
| 79 | Theresa Collins | 30 | Daughter | Sales Girl | Rhode Island |
| 80 | Mayette Collins | 23 | Daughter | Clerk | 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)