WC
William Carey — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this William Carey across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 7-person household.
Age 20
b. ~1920
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Carey |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | New Worker |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | New Worker |
| Township / Ward | Boston |
| Est. Birth Year | ~1920 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Robert Carey | Son | — | 13 | ~1927 |
| William Carey | Head | — | 45 | ~1895 |
| William Carey | Son | — | 20 | ~1920 |
| Margaret Carey | Spouse | — | 41 | ~1899 |
| Francis Carey | Son | — | 19 | ~1921 |
| Winnifred Carey | Daughter | — | 21 | ~1919 |
| Paul Carey | Son | — | 9 | ~1931 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 10
Suffolk, Massachusetts · implied b. ~1920 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carey |
| Given Name | William F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| 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 20
Suffolk-County, Massachusetts · implied b. ~1920 — 7 household members
| Surname | Carey |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Occupation | New Worker |
| Highest Grade | Hs 3 |
| 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 Carey across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Carey
Son · 1940 · age 20 · b. ~1920 · Massachusetts
★ You are viewing this record
Sibling
Paul Carey
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Carey
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Carey
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Winnifred Carey
Sibling · 1940 · age 21
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-t0627-01671-00605)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John Hanrahan | 26 | Nephew | Apprentice | Massachusetts |
| 42 | Helen Reddington | 42 | Cousin | Machine Operator | Massachusetts |
| 43 | Barbara Donovan | 45 | Head | — | Eire |
| 44 | Josephine Donovan | 7 | Daughter | — | Massachusetts |
| 45 | Kenneth M Perrier | 29 | Head | Clerk | Massachusetts |
| 46 | Helen Perrier | 25 | Wife | — | Massachusetts |
| 47 | Florence G Nehf | 52 | Head | — | Massachusetts |
| 48 | Mildred Morris | 49 | Sister | Chambermaid | Massachusetts |
| 49 | John Morris | 53 | Brother in law | Hardware Sales | England |
| 50 | Leslie Morris | 28 | Nephew | Instructor | Massachusetts |
| 51 | George L Jr Holmes | 27 | Head | Service Man | Massachusetts |
| 52 | Julia Holmes | 25 | Wife | — | Massachusetts |
| 53 | Margaret Holmes | 2 | Daughter | — | Massachusetts |
| 54 | George L Holmes | 60 | Father | Legal Adjuster | Massachusetts |
| 55 | Catherine T Kennedy | 65 | Head | — | Eire |
| 56 | Elizabeth M Kennedy | 31 | Daughter | Stenographer | Massachusetts |
| 57 | Catherine T Kennedy | 29 | Daughter | Machine Operator | Massachusetts |
| 58 | Marie Kandaras | 44 | Head | — | Lithuania |
| 59 | Albert Kandaras | 20 | Son | — | Massachusetts |
| 60 | Bronnie Kandaras | 24 | Daughter | Salesgirl | Massachusetts |
| 61 | William L Carey | 45 | Head | Shipper | Massachusetts |
| 62 | Margaret Carey | 41 | Wife | — | Massachusetts |
| 63 | William Carey THIS PERSON | 20 | Son | New Worker | Massachusetts |
| 64 | Winnifred Carey | 21 | Daughter | — | Massachusetts |
| 65 | Francis Carey | 19 | Son | Messenger | Massachusetts |
| 66 | Robert Carey | 13 | Son | — | Massachusetts |
| 67 | Paul Carey | 9 | Son | — | Massachusetts |
| 68 | John Powers | 26 | Head | Laborer | Massachusetts |
| 69 | Mary Powers | 25 | Wife | — | Massachusetts |
| 70 | Richard Powers | 1 | Son | — | Massachusetts |
| 71 | Mary Burke | 54 | Head | — | Canada English |
| 72 | Raymond Burke | 28 | Son | Shipper | Massachusetts |
| 73 | Eileen Burke | 27 | Daughter | Stenographer | Massachusetts |
| 74 | Mary Burke | 26 | Daughter | Dietician | Massachusetts |
| 75 | John Burke | 23 | Son | Stenographer | Massachusetts |
| 76 | Dominic Burke | 21 | Son | New Worker | Massachusetts |
| 77 | Michael J Regela | 71 | Head | Printer | Germany |
| 78 | Ellen Regela | 68 | Wife | — | Massachusetts |
| 79 | Maurice J Flynn | 68 | Head | Truck Driver | Massachusetts |
| 80 | Mary Flynn | 67 | Wife | — | 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)