MH
Mary Hurley — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Mary Hurley across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1915), then head of a 8-person household.
Age 25
b. ~1915
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Hurley |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Malden City |
| Est. Birth Year | ~1915 |
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 |
|---|---|---|---|---|
| Anna Hurley | Daughter | — | 23 | ~1917 |
| Annie Hurley | Daughter | — | 19 | ~1921 |
| Mary Hurley | Daughter | — | 25 | ~1915 |
| Thomas Hurley | Head | — | 51 | ~1889 |
| Leo Hurley | Son | — | 16 | ~1924 |
| Thomas Hurley | Son | — | 22 | ~1918 |
| James Hurley | Son | — | 27 | ~1913 |
| Annie Hurley | Spouse | — | 48 | ~1892 |
Census Appearances
1930
Middlesex, Massachusetts
Daughter, age 15
Middlesex, Massachusetts · implied b. ~1915 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hurley |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Daughter, age 25
Middlesex-County, Massachusetts · implied b. ~1915 — 8 household members
| Surname | Hurley |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden City |
| 1935 Residence (County) | Middlesex |
| 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 Hurley across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Hurley
Daughter · 1940 · age 25 · b. ~1915 · Massachusetts
★ You are viewing this record
Sibling
Thomas Hurley
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Annie Hurley
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Hurley
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Hurley
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Hurley
Sibling · 1940 · age 27
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-t0627-01608-00231)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Hay | None | — | — | — |
| 42 | Eugene F Sullivan | 63 | Head | Laborer | Ireland |
| 43 | Eugene F Jr Sullivan | 26 | Son | Carrier | Massachusetts |
| 44 | Mary E Sullivan | 34 | Daughter | — | Massachusetts |
| 45 | Flora Mckinnon | 67 | Head | — | Ireland |
| 46 | John Hurley | 41 | Head | Chauffeur | Massachusetts |
| 47 | Mary E Hurley | 40 | Wife | — | Massachusetts |
| 48 | John J Hurley | 15 | Son | — | Massachusetts |
| 49 | Leo Hurley | 14 | Son | — | Massachusetts |
| 50 | Walter Hurley | 13 | Son | — | Massachusetts |
| 51 | Joseph E Hollohan | 36 | Boarder | Cutter | Massachusetts |
| 52 | Mark Bennett | 72 | Head | — | Maine |
| 53 | Mary Bennett | 58 | Wife | — | Canada-English |
| 54 | Alice Bennett | 17 | Niece | — | Massachusetts |
| 55 | Mary Fitzpatrick | 81 | Head | — | Ireland |
| 56 | Cornelius Sullivan | 27 | Head | Laborer | Massachusetts |
| 57 | Mildred Sullivan | 23 | Wife | — | Massachusetts |
| 58 | Eleanor Sullivan | 5 | Daughter | — | Massachusetts |
| 59 | Mildred Sullivan | 2 | Daughter | — | Massachusetts |
| 60 | Thomas Hurley | 51 | Head | Laborer | Ireland |
| 61 | Annie Hurley | 48 | Wife | — | Ireland |
| 62 | James H Hurley | 27 | Son | Salesman | Massachusetts |
| 63 | Mary E Hurley THIS PERSON | 25 | Daughter | — | Massachusetts |
| 64 | Anna T Hurley | 23 | Daughter | Clerical | Massachusetts |
| 65 | Thomas J Hurley | 22 | Son | Salesman | Massachusetts |
| 66 | Annie T Hurley | 19 | Daughter | — | Massachusetts |
| 67 | Leo Hurley | 16 | Son | — | Massachusetts |
| 68 | Cornelius Sullivan | 65 | Head | Laborer | Ireland |
| 69 | Annie Sullivan | 65 | Wife | — | Ireland |
| 70 | John F Clinton | 41 | Head | Agent | Massachusetts |
| 71 | Catherine Clinton | 41 | Wife | — | Massachusetts |
| 72 | John F Jr Clinton | 13 | Son | — | Massachusetts |
| 73 | Barbara Clinton | 10 | Daughter | — | Massachusetts |
| 74 | Claire Clinton | 4 | Daughter | — | Massachusetts |
| 75 | Mary Mcdonough | 70 | Head | — | Ireland |
| 76 | William Mcdonough | 49 | Son | Engineer | Massachusetts |
| 77 | John F Cavanaugh | 41 | Head | Printer | Massachusetts |
| 78 | Mary D Cavanaugh | 41 | Wife | — | Massachusetts |
| 79 | John F Jr Cavanaugh | 12 | Son | — | Massachusetts |
| 80 | Robert J Cavanaugh | 10 | Son | — | 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)