WC
William Casey — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this William Casey across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 9-person household.
Age 21
b. ~1919
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Casey |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Laborer |
| Industry | Refrigerator Mfg |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 360 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Laborer |
| Township / Ward | Boston City |
| Est. Birth Year | ~1919 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Agnes Casey | Daughter | — | 12 | ~1928 |
| Marie Casey | Daughter | — | 17 | ~1923 |
| Helen Casey | Daughter | — | 13 | ~1927 |
| Alice Casey | Daughter | — | 19 | ~1921 |
| John Casey | Son | — | 7 | ~1933 |
| William Casey | Son | — | 21 | ~1919 |
| Robert Casey | Son | — | 1 | ~1939 |
| Thomas Casey | Son | — | 15 | ~1925 |
| Alice Casey | Spouse | — | 40 | ~1900 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 11
Suffolk, Massachusetts · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Casey |
| Given Name | William J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| 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
Suffolk-County, Massachusetts
Son, age 21
Suffolk-County, Massachusetts · implied b. ~1919 — 9 household members
| Surname | Casey |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Occupation | Laborer |
| Industry | Refrigerator Mfg |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 360 |
| 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 William Casey across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Casey
Son · 1940 · age 21 · b. ~1919 · Massachusetts
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Sibling
Thomas Casey
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Casey
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Casey
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Casey
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Casey
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Casey
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agnes Casey
Sibling · 1940 · age 12
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-t0627-01664-00686)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alice Casey | 40 | Wife | H | Massachusetts |
| 2 | William Casey THIS PERSON | 21 | Son | Laborer | Massachusetts |
| 3 | Alice Casey | 19 | Daughter | Laborer | Massachusetts |
| 4 | Marie Casey | 17 | Daughter | H | Massachusetts |
| 5 | Thomas Casey | 15 | Son | H | Massachusetts |
| 6 | Helen Casey | 13 | Daughter | H | Massachusetts |
| 7 | Agnes Casey | 12 | Daughter | H | Massachusetts |
| 8 | John Casey | 7 | Son | — | Massachusetts |
| 9 | Robert Casey | 1 | Son | — | Massachusetts |
| 10 | John Connolly | 45 | Head | Laborer | Irish Free State |
| 11 | Nora Q. Connolly | 43 | Wife | H | Irish Free State |
| 12 | Mary Connolly | 23 | Daughter | Laborer | Massachusetts |
| 13 | Edward Connolly | 18 | Son | H | Massachusetts |
| 14 | Margaret Connolly | 16 | Daughter | H | Massachusetts |
| 15 | James Connolly | 14 | Son | H | Massachusetts |
| 16 | Joseph Connolly | 12 | Son | H | Massachusetts |
| 17 | Thomas Connolly | 10 | Son | — | Massachusetts |
| 18 | Patricia Connolly | 6 | Daughter | — | Massachusetts |
| 19 | John Connolly | 4 | Son | — | Massachusetts |
| 20 | Patrick J. Kelly | 51 | Head | Clerk | Irish Free State |
| 21 | Ellen M. Kelly | 57 | Wife | H | Irish Free State |
| 22 | John F. Kelly | 24 | Son | H | Massachusetts |
| 23 | Eileen T. Kelly | 23 | Daughter | Secretary | Massachusetts |
| 24 | Mary P. Kelly | 20 | Daughter | Waitress | Massachusetts |
| 25 | Theresa Kelly | 17 | Daughter | H | Massachusetts |
| 26 | Joseph Kelly | 15 | Son | H | Massachusetts |
| 27 | William Kelly | 13 | Son | — | Massachusetts |
| 28 | William Kennedy | 65 | Head | H | Irish Free State |
| 29 | Ernest Edwards | 61 | Head | H | Massachusetts |
| 30 | Mary Edwards | 61 | Wife | H | Massachusetts |
| 31 | Helen Edwards | 32 | Daughter | Jumper | Massachusetts |
| 32 | Edward Edwards | 15 | Son | H | Massachusetts |
| 33 | Joseph Ruka | 45 | Head | Mechanic | Lithuania |
| 34 | Eva Ruka | 43 | Wife | H | Lithuania |
| 35 | Joan Ruka | 25 | Daughter | — | Massachusetts |
| 36 | Anne Ruka | 20 | Daughter | H | Massachusetts |
| 37 | Alfred Ruka | 17 | Son | Day Worker | Massachusetts |
| 38 | Anna Finucan | 61 | Head | Filler | Massachusetts |
| 39 | Evelyn Bridges | 36 | Sister | Driller | Massachusetts |
| 40 | Francis Houde | 32 | Head | Laborer | 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)