MC
Mary Coffey — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Androscoggin-County, Maine
Our Model Tree links this Mary Coffey across the 1920, 1930 and 1940 US Censuses in Androscoggin-County, Maine (XGBoost, ~Confirmed) — first a spouse (b.~1871), then head of a 3-person household.
Age 69
b. ~1871
Female
Spouse
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Androscoggin-County, Maine |
| Surname | Coffey |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Lewiston |
| 1935 Residence (County) | Androscoggin |
| Naturalization Status | Naturalized |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | 4 |
| 1935 Residence | Same house |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Township / Ward | Lewiston |
| Est. Birth Year | ~1871 |
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 |
|---|---|---|---|---|
| Daniel Coffey | Head | — | 78 | ~1862 |
| Mary Coffey | Spouse | — | 69 | ~1871 |
| Marguerite Coffey | Daughter | — | 31 | ~1909 |
Census Appearances
1920
Androscoggin, Maine
Spouse, age 49
Androscoggin, Maine · implied b. ~1871 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Coffey |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1881 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1930
Androscoggin, Maine
Spouse, age 58
Androscoggin, Maine · implied b. ~1872 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Coffey |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1890 |
| Age at First Marriage | 19 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Mother Tongue | Scotch |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Androscoggin-County, Maine
Spouse, age 69
Androscoggin-County, Maine · implied b. ~1871 — 3 household members
| Surname | Coffey |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Lewiston |
| 1935 Residence (County) | Androscoggin |
| Naturalization Status | Naturalized |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | 4 |
| 1935 Residence | Same house |
| 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 Mary Coffey 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 Coffey
Spouse · 1940 · age 69 · b. ~1871 · Maine
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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 — Androscoggin-County, Maine
Open full size
1940 US Federal Census — Androscoggin-County, Maine
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01470-00151)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | George Blouin | 35 | Head | Watch Repair | Canada-French |
| 42 | Laurette Blouin | 34 | Wife | Repair | Maine |
| 43 | George Jr. Blouin | 3 | Son | — | Maine |
| 44 | Leo O. Higgins | 30 | Head | — | Maine |
| 45 | Madeline Higgins | 34 | Sister | Bookkeeper | Maine |
| 46 | John J. Holway | 29 | Head | Lining Cutter | Maine |
| 47 | Leola Holway | 21 | Wife | Bench Work | Maine |
| 48 | Joseph Leahy | 44 | Head | — | Maine |
| 49 | Eva Leahy | 40 | Wife | Frame Spinner | Maine |
| 50 | Patrick Leahy | 81 | Father | — | Ireland |
| 51 | Catherine Leahy | 79 | Mother | — | Ireland |
| 52 | Joe E. Gravel | 24 | Head | Loom Fixer | Canada-French |
| 53 | Bertha Gravel | 24 | Wife | — | Canada-French |
| 54 | Marcel Gravel | 0 | Daughter | — | Maine |
| 55 | Wilfred Perreault | 60 | Head | Carpenter | Canada-French |
| 56 | Emilia Perreault | 56 | Wife | — | Canada-French |
| 57 | Alphonse Perreault | 32 | Son | Cutter | Canada-French |
| 58 | Arthur Perreault | 27 | Son | Cutter | Canada-French |
| 59 | Madeline Perreault | 20 | Daughter | Dresser | Canada-French |
| 60 | Daniel Coffey | 78 | Head | — | Maine |
| 61 | Mary Coffey THIS PERSON | 69 | Wife | — | Scotland |
| 62 | Marguerite Coffey | 31 | Daughter | Bookkeeper | Maine |
| 63 | Philip J. Racine | 27 | Head | Stock Fitter | New Hampshire |
| 64 | Elaine Racine | 29 | Wife | Cutter | Canada-French |
| 65 | Richard Racine | 5 | Son | — | Maine |
| 66 | Olivier Cote | 64 | Head | — | Canada-French |
| 67 | Delhia Cote | 59 | Wife | — | Canada-French |
| 68 | George Laverdure | 47 | Head | Dresser | Canada-French |
| 69 | Agnes Laverdure | 44 | Wife | Dresser | Mass |
| 70 | Irene Bambe | 32 | Lodger | Brush Daint | Canada-French |
| 71 | Joseph Beaulieu | 31 | Head | Dresser | Maine |
| 72 | Lillian Beaulieu | 31 | Wife | Laborer | Maine |
| 73 | Raymond Beaulieu | 2 | Son | — | Maine |
| 74 | Caroline Dionne | 74 | Head | — | Canada-French |
| 75 | Laura Rouf | 46 | Daughter | Laborer | Maine |
| 76 | Wilfred Belleville | 35 | Head | Watch Repair | Maine |
| 77 | Adrienne Belleville | 28 | Wife | — | Vermont |
| 78 | Maurice Belleville | 3 | Son | — | Maine |
| 79 | Albert Moreau | 37 | Head | Electrician | Maine |
| 80 | Jeanne Moreau | 38 | Wife | — | Canada-French |
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)