WD
William Daly — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this William Daly across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 12-person household.
Age 15
b. ~1925
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Daly |
| Given Name | William J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Industry | No |
| Highest Grade | Hs 1 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston |
| Est. Birth Year | ~1925 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Leo Daly | Son | — | 8 | ~1932 |
| William Daly | Son | — | 15 | ~1925 |
| Maureen Daly | Daughter | — | 1 | ~1939 |
| Francis Daly | Son | — | 22 | ~1918 |
| Frank Daly | Head | — | 47 | ~1893 |
| Paul Daly | Son | — | 4 | ~1936 |
| James Daly | Son | — | 21 | ~1919 |
| Patricia Daly | Daughter | — | 13 | ~1927 |
| Edith Daly | Daughter | — | 19 | ~1921 |
| John Daly | Son | — | 10 | ~1930 |
| Josephine Daly | Spouse | — | 45 | ~1895 |
| Arthur Daly | Son | — | 17 | ~1923 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 5
Suffolk, Massachusetts · implied b. ~1925 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Daley |
| Given Name | William J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | New York |
| Occupation | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 15
Suffolk-County, Massachusetts · implied b. ~1925 — 12 household members
| Surname | Daly |
| Given Name | William J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Industry | No |
| Highest Grade | Hs 1 |
| 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 William Daly across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Daly
Son · 1940 · age 15 · b. ~1925 · Massachusetts
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Sibling
James Daly
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Daly
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Daly
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Daly
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Daly
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Maureen Daly
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Daly
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edith Daly
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Daly
Sibling · 1940 · age 8
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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01671-00482)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank E. Daly | 47 | Head | Letter Carrier | Massachusetts |
| 2 | Josephine M. Daly | 45 | Wife | — | New York |
| 3 | Francis J. Daly | 22 | Son | Transfer Porter | Massachusetts |
| 4 | James A. Daly | 21 | Son | — | Massachusetts |
| 5 | Edith A. Daly | 19 | Daughter | Stenographer | Massachusetts |
| 6 | Arthur A. Daly | 17 | Son | New Worker | Massachusetts |
| 7 | William J. Daly THIS PERSON | 15 | Son | — | Massachusetts |
| 8 | Patricia Daly | 13 | Daughter | — | Massachusetts |
| 9 | John A. Daly | 10 | Son | — | Massachusetts |
| 10 | Leo A. Daly | 8 | Son | — | Massachusetts |
| 11 | Paul R. Daly | 4 | Son | — | Massachusetts |
| 12 | Maureen Daly | 1 | Daughter | — | Massachusetts |
| 13 | Harry J. Fifield | 54 | Head | Manager | Maine |
| 14 | Alice S. Fifield | 46 | Wife | — | Massachusetts |
| 15 | Harry J. Fifield | 17 | Son | — | Massachusetts |
| 16 | Annie F. Stebbins | 68 | Sister-in-law | — | Massachusetts |
| 17 | Albert E. Somers | 72 | Head | Trimmer | Massachusetts |
| 18 | Louis R. Spofford | 33 | Head | Janitor | Massachusetts |
| 19 | Margaret Spofford | 55 | Mother | — | Massachusetts |
| 20 | Mary Mccurdy | 54 | Head | Proofer | Canada-English |
| 21 | Joseph Mikenas | 51 | Head | Edge Trimmer | Lithuania |
| 22 | Catherine Mikenas | 40 | Wife | — | Lithuania |
| 23 | Bertha Mikenas | 13 | Daughter | — | Massachusetts |
| 24 | Joseph Mikenas | 12 | Son | — | Massachusetts |
| 25 | Mary Mikenas | 4 | Daughter | — | Massachusetts |
| 26 | Harold P. Littlefield | 39 | Head | Stevedore | Massachusetts |
| 27 | Verna Littlefield | 27 | Wife | — | New Hampshire |
| 28 | Doris Littlefield | 19 | Daughter | — | Massachusetts |
| 29 | Shirley Littlefield | 8 | Daughter | — | Massachusetts |
| 30 | Infant Littlefield | 0 | Daughter | — | Massachusetts |
| 31 | Paul Tumas | 43 | Head | Polisher | Lithuania |
| 32 | Ursula Tumas | 48 | Wife | — | Lithuania |
| 33 | Paul Tumas | 24 | Son | Route Salesman | Massachusetts |
| 34 | Albin Tumas | 21 | Son | Butcher | Massachusetts |
| 35 | John Tumas | 17 | Son | — | Massachusetts |
| 36 | James Pipa | 48 | Head | Chauffeur | Austria |
| 37 | Mary Pipa | 46 | Wife | — | Austria |
| 38 | Ann Pipa | 25 | Daughter | Assembler | Massachusetts |
| 39 | Elizabeth Pipa | 21 | Daughter | Typist | Massachusetts |
| 40 | Mary Pipa | 19 | Daughter | New Worker | 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)