MT
Mary Thornton — 1940 US Census Record
Model Tree available1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this Mary Thornton across the 1920, 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents John & Mary — first a daughter (b.~1911), then head of a 6-person household.
Age 29
b. ~1911
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | Thornton |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Haverhill |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | Examiner of Shoes |
| Industry | Unemployment Office |
| Class of Worker | GW |
| Hours Worked | 45 |
| Income (1939) | 1560 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Examiner Of Shoes |
| Township / Ward | Haverhill |
| Est. Birth Year | ~1911 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Thornton | Daughter | — | 29 | ~1911 |
| Mary Thornton | Head | — | 58 | ~1882 |
| Daniel Fogg | Other | — | 16 | ~1924 |
| Paul Thornton | Son | — | 25 | ~1915 |
| Gerald Thornton | Son | — | 14 | ~1926 |
| James Thornton | Son | — | 31 | ~1909 |
Census Appearances
1920
Essex, Massachusetts
Daughter, age 9
Essex, Massachusetts · implied b. ~1911 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thornton |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Essex, Massachusetts
Daughter, age 19
Essex, Massachusetts · implied b. ~1911 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thornton |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Essex-County, Massachusetts
Daughter, age 29
Essex-County, Massachusetts · implied b. ~1911 — 6 household members
| Surname | Thornton |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Haverhill |
| 1935 Residence (County) | Essex |
| Occupation | Examiner of Shoes |
| Industry | Unemployment Office |
| Class of Worker | GW |
| Hours Worked | 45 |
| Income (1939) | 1560 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| 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 Thornton across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Thornton (~0.92 confidence) and mother Mary Thornton (~0.92 confidence) and mother Mary Thornton (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Thornton
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Mary Thornton
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Mary Thornton
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Thornton
Daughter · 1940 · age 29 · b. ~1911 · Massachusetts
★ You are viewing this record
Sibling
Gerald Thornton
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Thornton
Sibling · 1940 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Thornton
Sibling · 1940 · age 25
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 — Essex-County, Massachusetts
Open full size
1940 US Federal Census — Essex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01580-00704)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Sarah D Stoney | 75 | Head | — | Massachusetts |
| 42 | Mary J. Moynihan | 54 | Servant | Housekeeper | Eire |
| 43 | Herman E Lewis | 69 | Head | Bank President | New Hampshire |
| 44 | Carrie L. Lewis | 78 | Wife | — | Massachusetts |
| 45 | Honora Nugent | 31 | Servant | Housekeeper | Eire |
| 46 | Mary E. Thornton | 58 | Head | — | Eire |
| 47 | James Thornton | 31 | Son | — | Massachusetts |
| 48 | Mary Thornton THIS PERSON | 29 | Daughter | Examiner Of Shoes | Massachusetts |
| 49 | Paul Thornton | 25 | Son | — | Massachusetts |
| 50 | Gerald Thornton | 14 | Son | — | Massachusetts |
| 51 | Daniel Fogg | 16 | Nephew | — | Massachusetts |
| 52 | Jennie A. Crane | 50 | Head | Stitcher | Canada Eng. |
| 53 | William Crane | 24 | Son | Assembler | Massachusetts |
| 54 | Thomas J. Davis | 49 | Head | Treer | Newfoundland |
| 55 | Mary Davis | 49 | Wife | Vamper | New Hampshire |
| 56 | Pauline M Fontaine | 43 | Head | — | Nova Scotia |
| 57 | Bernadette Fontaine | 17 | Daughter | — | Massachusetts |
| 58 | Norman Fontaine | 14 | Son | — | Massachusetts |
| 59 | Camille Fontaine | 12 | Son | — | Massachusetts |
| 60 | Robert Fontaine | 10 | Son | — | Massachusetts |
| 61 | Stephen Johnson | 53 | Head | Kitchen Man | Greece |
| 62 | Flora Johnson | 42 | Daughter | — | Greece |
| 63 | Charles Johnson | 20 | Son | Counter Cutter | Massachusetts |
| 64 | Pauline Johnson | 18 | Daughter | — | Massachusetts |
| 65 | James Johnson | 16 | Son | Helper | Massachusetts |
| 66 | Georgia Johnson | 6 | Daughter | — | Massachusetts |
| 67 | Milton Demeris | 48 | Head | Barber | Greece |
| 68 | Orania Demeris | 48 | Wife | — | Greece |
| 69 | Arthur Demeris | 22 | Son | Cutter | Massachusetts |
| 70 | Claire Demeris | 17 | Daughter | Bow Maker | Massachusetts |
| 71 | Demitres Demeris | 12 | Daughter | — | Massachusetts |
| 72 | John Trembley | 33 | Head | Staker | Massachusetts |
| 73 | Flora Trembley | 29 | Wife | Presser | Massachusetts |
| 74 | David Trembley | 6 | Son | — | Massachusetts |
| 75 | Nancy Trembley | 2 | Daughter | — | Massachusetts |
| 76 | James Trembley | 0 | Son | — | Massachusetts |
| 77 | Stanley Andrushkiewicz | 63 | Head | Niggerhead Operat. | Russia |
| 78 | Valaria Andrushkiewicz | 51 | Wife | Fancy Stitcher | Russia |
| 79 | Vitalis Andrushkiewicz | 29 | Son | Teacher | Massachusetts |
| 80 | Edmund Andrushkiewicz | 22 | Son | Wood Heel | Massachusetts |
Pedigree Summary
Mary + 3 siblings
Gen 1 · 3 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)