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Mary Hanley — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Mary Hanley across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1918), then head of a 8-person household.
Age 22
b. ~1918
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Hanley |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Medford City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Clerk |
| Industry | New England Tel. |
| Class of Worker | PW |
| Income (1939) | 900 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Clerk |
| Township / Ward | Medford City |
| Est. Birth Year | ~1918 |
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 |
|---|---|---|---|---|
| Florence Hanley | Daughter | — | 23 | ~1917 |
| Catherine Hanley | Daughter | — | 20 | ~1920 |
| Mary Hanley | Daughter | — | 22 | ~1918 |
| Ellen Hanley | Spouse | — | 46 | ~1894 |
| Joseph Hanley | Son | — | 11 | ~1929 |
| Joseph Hanley | Head | — | 51 | ~1889 |
| Gertrude Hanley | Daughter | — | 14 | ~1926 |
| Clare Hanley | Daughter | — | 18 | ~1922 |
Census Appearances
1930
Middlesex, Massachusetts
Daughter, age 11
Middlesex, Massachusetts · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hanley |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Chauffeur |
| Industry | Office |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Daughter, age 22
Middlesex-County, Massachusetts · implied b. ~1918 — 8 household members
| Surname | Hanley |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Medford City |
| 1935 Residence (County) | Middlesex |
| Occupation | Clerk |
| Industry | New England Tel. |
| Class of Worker | PW |
| Income (1939) | 900 |
| Highest Grade | C 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 Hanley across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Hanley
Daughter · 1940 · age 22 · b. ~1918 · Massachusetts
★ You are viewing this record
Sibling
Catherine Hanley
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clare Hanley
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gertrude Hanley
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Florence Hanley
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Hanley
Sibling · 1940 · age 11
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-t0627-01611-00095)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mildred Canty | 16 | Daughter | — | Massachusetts |
| 2 | George Johnson | 46 | Head | Plumber | Rhode Island |
| 3 | Anna Johnson | 46 | Wife | — | Rhode Island |
| 4 | Peter Johnson | 37 | Brother | Helper | Scotland |
| 5 | Joseph Bailey | 65 | Head | — | Massachusetts |
| 6 | Elizabeth Bailey | 70 | Wife | — | Massachusetts |
| 7 | Walter Bailey | 36 | Son | Clerk | Massachusetts |
| 8 | John Callahan | 66 | Head | — | Massachusetts |
| 9 | Katherine Callahan | 60 | Wife | — | Massachusetts |
| 10 | Joseph Hanley | 51 | Head | Supervisor | Massachusetts |
| 11 | Ellen Hanley | 46 | Wife | — | Massachusetts |
| 12 | Florence Hanley | 23 | Daughter | Clerk | Massachusetts |
| 13 | Mary Hanley THIS PERSON | 22 | Daughter | Clerk | Massachusetts |
| 14 | Catherine Hanley | 20 | Daughter | — | Massachusetts |
| 15 | Clare L. Hanley | 18 | Daughter | — | Massachusetts |
| 16 | Gertrude Hanley | 14 | Daughter | — | Massachusetts |
| 17 | Joseph J. Hanley | 11 | Son | — | Massachusetts |
| 18 | George Colyer | 72 | Head | — | Massachusetts |
| 19 | Margaret Colyer | 72 | Wife | — | Massachusetts |
| 20 | Walter Colyer | 32 | Son | Clerk | Massachusetts |
| 21 | Thomas Carey | 31 | Head | Police Officer | Massachusetts |
| 22 | Catherine Carey | 31 | Wife | — | Massachusetts |
| 23 | Jane Carey | 3 | Daughter | — | Massachusetts |
| 24 | Thomas Carey | 2 | Son | — | Massachusetts |
| 25 | Frank Moccia | 37 | Head | Salesman | Massachusetts |
| 26 | Edith Moccia | 33 | Wife | — | Massachusetts |
| 27 | Sophie Stevens | 62 | Head | — | Massachusetts |
| 28 | Leo Stevens | 27 | Son | Shipper | Massachusetts |
| 29 | Helen Stevens | 21 | Daughter | Clerk | Massachusetts |
| 30 | Agnes Stevens | 24 | Daughter | — | Massachusetts |
| 31 | Marion Stevens | 36 | Daughter | — | Massachusetts |
| 32 | Joseph Stevens | 22 | Son | Clerk | Massachusetts |
| 33 | Robert Stevens | 20 | Son | New Worker | Massachusetts |
| 34 | Paul Stevens | 17 | Son | New Worker | Massachusetts |
| 35 | James Blanchard | 43 | Head | Mason | Massachusetts |
| 36 | Catherine Blanchard | 33 | Wife | — | Massachusetts |
| 37 | James Jr. Blanchard | 13 | Son | — | Massachusetts |
| 38 | Vincent Blanchard | 12 | Son | — | Massachusetts |
| 39 | John Sweeney | 31 | Head | Clerk | Massachusetts |
| 40 | Dorothy Sweeney | 26 | Wife | — | Massachusetts |
Related Census Records
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)