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John Daley — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this John Daley across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 8-person household.
Age 12
b. ~1928
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Daley |
| Given Name | John J Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Arlington |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Highest Grade | G 5 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Arlington |
| Est. Birth Year | ~1928 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Jean Daley | Daughter | — | 9 | ~1931 |
| John Daley | Son | — | 12 | ~1928 |
| Patrick Hurley | Head | — | 73 | ~1867 |
| Timothy Hurley | Son | — | 43 | ~1897 |
| John Daley | Other | — | 39 | ~1901 |
| Mary Hurley | Spouse | — | 78 | ~1862 |
| Mary Daley | Spouse | — | 41 | ~1899 |
| Mary Hurley | Daughter | — | 46 | ~1894 |
Census Appearances
1930
Essex, Massachusetts
Son, age 2
Essex, Massachusetts · implied b. ~1928 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Daly |
| Given Name | John J. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 12
Middlesex-County, Massachusetts · implied b. ~1928 — 8 household members
| Surname | Daley |
| Given Name | John J Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Arlington |
| 1935 Residence (County) | Middlesex |
| Highest Grade | G 5 |
| 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 John Daley across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Daley
Son · 1940 · age 12 · b. ~1928 · Massachusetts
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Sibling
Timothy Hurley
Sibling · 1940 · age 43
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Hurley
Sibling · 1940 · age 46
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jean Daley
Sibling · 1940 · age 9
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-t0627-01601-00259)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles O Toomey | 48 | Head | Patrolman | Massachusetts |
| 2 | Mildred M Toomey | 35 | Wife | — | Massachusetts |
| 3 | Walter Toomey | 14 | Son | — | Massachusetts |
| 4 | Charles Toomey | 12 | Son | — | Massachusetts |
| 5 | Ruth Toomey | 10 | Daughter | — | Massachusetts |
| 6 | Kenneth Toomey | 5 | Son | — | Massachusetts |
| 7 | John Toomey | 3 | Son | — | Massachusetts |
| 8 | Ernest A Hardy | 59 | Head | Janitor | Canada Eng |
| 9 | Linnie A Hardy | 65 | Wife | — | Massachusetts |
| 10 | Edward S Hardy | 28 | Son | Janitor | Massachusetts |
| 11 | Alvin A Woodward | 46 | Head | Electrician | New Hampshire |
| 12 | Blanche E Woodward | 54 | Wife | — | New Hampshire |
| 13 | Duncan F Woodward | 17 | Son | — | Connecticut |
| 14 | Henry Frederick | 53 | Head | Caretaker | Massachusetts |
| 15 | Carrie E Frederick | 53 | Wife | — | Connecticut |
| 16 | Elwin Frederick | 22 | Son | Apprentice | Massachusetts |
| 17 | William H Finley | 57 | Head | Truck Driver | Massachusetts |
| 18 | Minnie E Finley | 53 | Wife | — | Massachusetts |
| 19 | Mary Jane Finley | 94 | Mother | — | Massachusetts |
| 20 | Robert F Bowser | 26 | Head | Repairman | Massachusetts |
| 21 | Eleanor F Bowser | 25 | Wife | — | Massachusetts |
| 22 | Joanne Bowser | 1 | Daughter | — | Massachusetts |
| 23 | Robert Bowser | 0 | Son | — | Massachusetts |
| 24 | Paul Santos | 33 | Head | Manager | Azores |
| 25 | Mary Santos | 24 | Wife | — | Massachusetts |
| 26 | Dorothy Santos | 7 | Daughter | — | Massachusetts |
| 27 | Paul Santos | 2 | Son | — | Massachusetts |
| 28 | Catherine O'Brien | 57 | Mother-in-law | — | Irish Free State |
| 29 | George O'Brien | 23 | Brother-in-law | Seaman | Massachusetts |
| 30 | Patrick J Hurley | 73 | Head | — | Irish Free State |
| 31 | Mary S Hurley | 78 | Wife | — | Massachusetts |
| 32 | Mary A Hurley | 46 | Daughter | Stenographer | Massachusetts |
| 33 | Timothy F Hurley | 43 | Son | — | Massachusetts |
| 34 | John J Daley | 39 | Son-in-law | Taxi Driver | Massachusetts |
| 35 | Mary E Daley | 41 | Wife | — | Massachusetts |
| 36 | John J Jr Daley THIS PERSON | 12 | Son | — | Massachusetts |
| 37 | Jean Daley | 9 | Daughter | — | Massachusetts |
| 38 | Walter J Furey | 23 | Head | Machinist Operator | Massachusetts |
| 39 | Julia B Furey | 23 | Wife | — | Massachusetts |
| 40 | James F Mccarthy | 51 | Father-in-law | Cutter | 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)