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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.~1927), then head of a 7-person household.
Age 13
b. ~1927
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Daley |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lowell City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Lowell City |
| Est. Birth Year | ~1927 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Edward Daley | Son | — | 5 | ~1935 |
| John Daley | Son | — | 13 | ~1927 |
| Gerald Daley | Son | — | 8 | ~1932 |
| William Daley | Head | — | 42 | ~1898 |
| Paul Daley | Son | — | 10 | ~1930 |
| William Daley | Son | — | 15 | ~1925 |
| Theresa Daley | Daughter | — | 12 | ~1928 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 3
Middlesex, Massachusetts · implied b. ~1927 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Daly |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| 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 13
Middlesex-County, Massachusetts · implied b. ~1927 — 7 household members
| Surname | Daley |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lowell City |
| 1935 Residence (County) | Middlesex |
| Highest Grade | No 7 |
| 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 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 13 · b. ~1927 · Massachusetts
★ You are viewing this record
Sibling
Edward Daley
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theresa Daley
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Daley
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gerald Daley
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Daley
Sibling · 1940 · age 10
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-t0627-01694-00511)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Austin Manning | 46 | Head | Laborer | Massachusetts |
| 2 | Mary Manning | 35 | Wife | — | Massachusetts |
| 3 | Austin Jr Manning | 15 | Son | — | Massachusetts |
| 4 | Dorothy Manning | 14 | Daughter | — | Massachusetts |
| 5 | Francis Manning | 12 | Son | — | Massachusetts |
| 6 | Mary Manning | 11 | Daughter | — | Massachusetts |
| 7 | Charles Manning | 10 | Son | — | Massachusetts |
| 8 | Katharine Hanley | 73 | Head | — | Massachusetts |
| 9 | William P Hanley | 47 | Son | Foreman | Massachusetts |
| 10 | Loretta Rogers | 38 | Lodger | — | Massachusetts |
| 11 | Mary Rogers | 13 | Lodger | — | Massachusetts |
| 12 | Edith O Reynolds | 44 | Head | — | Massachusetts |
| 13 | William Reynolds | 19 | Son | Laborer | Massachusetts |
| 14 | William Daley | 42 | Head | Laborer | Massachusetts |
| 15 | William Jr Daley | 15 | Son | — | Massachusetts |
| 16 | John Daley THIS PERSON | 13 | Son | — | Massachusetts |
| 17 | Theresa Daley | 12 | Daughter | — | Massachusetts |
| 18 | Paul Daley | 10 | Son | — | Massachusetts |
| 19 | Gerald Daley | 8 | Son | — | Massachusetts |
| 20 | Edward Daley | 5 | Son | — | Massachusetts |
| 21 | John D Harron | 46 | Head | Laborer | Massachusetts |
| 22 | Mary Harron | 39 | Wife | — | Massachusetts |
| 23 | John A Harron | 21 | Son | Laborer | Massachusetts |
| 24 | George Harron | 19 | Son | New Worker | Connecticut |
| 25 | Robert Harron | 12 | Son | — | Massachusetts |
| 26 | Mary Harron | 10 | Daughter | — | Massachusetts |
| 27 | Nellie Harron | 7 | Daughter | — | Massachusetts |
| 28 | Ruth Harron | 4 | Daughter | — | Massachusetts |
| 29 | Donald Harron | 2 | Son | — | Massachusetts |
| 30 | John D Fretus | 45 | Head | Laborer | Massachusetts |
| 31 | Emma Fretus | 44 | Wife | — | Massachusetts |
| 32 | John Fretus | 25 | Son | Painter | Massachusetts |
| 33 | Marion Fretus | 18 | Daughter | Housework | Massachusetts |
| 34 | Beatrice Fretus | 14 | Daughter | — | Massachusetts |
| 35 | [Blank] Fretus | None | [blank] | — | [blank] |
| 36 | Hannah Sheehan | 63 | Head | — | Irish Free State |
| 37 | Harold Duggan | 24 | Lodger | Stock Clerk | Massachusetts |
| 38 | Mary Duggan | 21 | Lodger | Examiner | Massachusetts |
| 39 | Charles Gannon | 30 | Lodger | Attendant | Massachusetts |
| 40 | William Maloney | 55 | Head | Salesman | 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)