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Mary Farley — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Mary Farley across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 8-person household.
Age 18
b. ~1922
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Farley |
| Given Name | Mary L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Melrose City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | New Worker |
| Class of Worker | PW |
| Hours Worked | 26 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | New Worker |
| Township / Ward | Melrose City |
| Est. Birth Year | ~1922 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Farley | Spouse | — | 52 | ~1888 |
| Winifred Farley | Daughter | — | 15 | ~1925 |
| John Farley | Head | — | 55 | ~1885 |
| Katherine Farley | Daughter | — | 20 | ~1920 |
| Ruth Farley | Daughter | — | 28 | ~1912 |
| Francis Farley | Daughter | — | 22 | ~1918 |
| Margaret Shannon | Other | — | 82 | ~1858 |
| Mary Farley | Daughter | — | 18 | ~1922 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 8
Suffolk, Massachusetts · implied b. ~1922 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Farley |
| Given Name | Mary C. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Newfoundland |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Daughter, age 18
Middlesex-County, Massachusetts · implied b. ~1922 — 8 household members
| Surname | Farley |
| Given Name | Mary L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Melrose City |
| 1935 Residence (County) | Middlesex |
| Occupation | New Worker |
| Class of Worker | PW |
| Hours Worked | 26 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| 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 Farley across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Farley
Daughter · 1940 · age 18 · b. ~1922 · Massachusetts
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Sibling
Ruth Farley
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Farley
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Winifred Farley
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Katherine Farley
Sibling · 1940 · age 20
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 — 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-t0627-01613-00298)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary E English | 14 | Daughter | — | Massachusetts |
| 2 | Milton D Williams | 59 | Head | Own Business | Massachusetts |
| 3 | Mary E Williams | 59 | Wife | — | Massachusetts |
| 4 | Marjorie M Williams | 28 | Daughter | Secretary | Massachusetts |
| 5 | Arnold W Williams | 27 | Son | Employee | Massachusetts |
| 6 | Robert E Parke | 42 | Head | Maintenance | Massachusetts |
| 7 | Ruth B Parke | 26 | Wife | — | Massachusetts |
| 8 | Walter B Parke | 2 | Son | — | Massachusetts |
| 9 | Albert R Sargent | 39 | Head | Manager | Massachusetts |
| 10 | Francis W Sargent | 33 | Wife | — | Massachusetts |
| 11 | Marilyn R Sargent | 9 | Daughter | — | Massachusetts |
| 12 | M. D. Talbot | 65 | Head | — | Maine |
| 13 | Robert Talbot | 26 | Nephew | Salesman (Tire) | Illinois |
| 14 | Ruby Burnett | 60 | Sister | — | Iowa |
| 15 | Forest A Millard | 40 | Head | Sales Manager | Rhode Island |
| 16 | Bessie V Millard | 44 | Wife | — | Rhode Island |
| 17 | Hazel Millard | 13 | Daughter | — | Rhode Island |
| 18 | John J Farley | 55 | Head | Salesman | Massachusetts |
| 19 | Mary F Farley | 52 | Wife | — | Massachusetts |
| 20 | Ruth Farley | 28 | Daughter | Clerk | Massachusetts |
| 21 | Francis Farley | 22 | Daughter | — | Massachusetts |
| 22 | Katherine Farley | 20 | Daughter | Clerk | Massachusetts |
| 23 | Mary L Farley THIS PERSON | 18 | Daughter | New Worker | Massachusetts |
| 24 | Winifred Farley | 15 | Daughter | — | Massachusetts |
| 25 | Margaret B Shannon | 82 | Mother-in-law | — | Ireland |
| 26 | John H Hunt | 75 | Head | Own Business | Massachusetts |
| 27 | Mary B Hunt | 74 | Wife | — | Canada-English |
| 28 | Frank Widdowson | 54 | Head | Dentist | Massachusetts |
| 29 | Lillian Q Widdowson | 50 | Wife | — | Massachusetts |
| 30 | Robert Widdowson | 19 | Son | — | Massachusetts |
| 31 | Shirley Widdowson | 17 | Daughter | — | Massachusetts |
| 32 | Charles Maxwell | 53 | Head | Investment Banker | Massachusetts |
| 33 | Kathleen D Maxwell | 45 | Wife | — | Massachusetts |
| 34 | Charles M Maxwell | 16 | Son | — | Massachusetts |
| 35 | Kathleen Maxwell | 16 | Daughter | — | Massachusetts |
| 36 | Pearl White | 33 | Servant | Maid | Canada-English |
| 37 | George Lyall | 52 | Head | Oil Broker | Missouri |
| 38 | Helen M Lyall | 41 | Wife | — | Missouri |
| 39 | Jean Lyall | 15 | Daughter | — | Massachusetts |
| 40 | Judith Lyall | 10 | Daughter | — | 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)