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.~1916), then head of a 7-person household.
Age 24
b. ~1916
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Carey |
| Given Name | William M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Salesman |
| Industry | Barber Supply |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 278 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Salesman |
| Township / Ward | Boston City |
| Est. Birth Year | ~1916 |
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 |
|---|---|---|---|---|
| James Carey | Son | — | 26 | ~1914 |
| Andrew Carey | Head | — | 64 | ~1876 |
| Mary Carey | Daughter | — | 36 | ~1904 |
| William Carey | Son | — | 24 | ~1916 |
| Mary Carey | Spouse | — | 66 | ~1874 |
| Annie Carey | Daughter | — | 29 | ~1911 |
| Joseph Carey | Son | — | 34 | ~1906 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 14
Suffolk, Massachusetts · implied b. ~1916 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carey |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 24
Suffolk-County, Massachusetts · implied b. ~1916 — 7 household members
| Surname | Carey |
| Given Name | William M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Occupation | Salesman |
| Industry | Barber Supply |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 278 |
| Highest Grade | Hs 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 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 24 · b. ~1916 · Massachusetts
★ You are viewing this record
Sibling
Mary Carey
Sibling · 1940 · age 36
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Carey
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Annie Carey
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Carey
Sibling · 1940 · age 34
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
39 people indexed on this census page (nara:1940:m-t0627-01669-00250)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William Comlaw | 5 | Head | — | Massachusetts |
| 42 | Charles F. Wallace | 51 | Head | — | Massachusetts |
| 43 | Charles J. Jr. Wallace | 24 | Son | Manager | Massachusetts |
| 44 | Madeline M. Wallace | 22 | Daughter | — | Massachusetts |
| 45 | Elizabeth Kennedy | 21 | Maid | Housemaid | Ireland |
| 46 | Andrew Carey | 64 | Head | Painter | Eire |
| 47 | Mary J. Carey | 66 | Wife | — | Eire |
| 48 | Joseph Q. Carey | 34 | Son | Painter | Massachusetts |
| 49 | James J. Carey | 26 | Son | Salesman | Massachusetts |
| 50 | William M. Carey THIS PERSON | 24 | Son | Salesman | Massachusetts |
| 51 | Mary J. Carey | 36 | Daughter | Bookkeeper | Massachusetts |
| 52 | Annie B. Carey | 29 | Daughter | Salesman | Massachusetts |
| 53 | Francis T. Harnott | 46 | Head | Clerk-File | Michigan |
| 54 | Mary E. Harnott | 46 | Wife | — | Michigan |
| 55 | James Harnott | 19 | Son | — | New Hamp. |
| 56 | Mary Harnott | 8 | Daughter | — | Michigan |
| 57 | Sarah Connelly | 58 | Head | — | Eire |
| 58 | Ellen Connelly | 56 | Sister | — | Eire |
| 59 | Marie Tracy | 20 | Lodger | Secretary | Massachusetts |
| 60 | William M. Egan | 58 | Head | Stock Clerk | Massachusetts |
| 61 | Catherine Sweeney | 40 | Maid | House Maid | Massachusetts |
| 62 | Henry Fisher | 48 | Head | Hoist Engineer | Canada English |
| 63 | Margaret Fisher | 42 | Wife | — | Scotland |
| 64 | Mary Fisher | 15 | Daughter | — | Scotland |
| 66 | James R. Archer | 51 | Head | Postal Clerk | No. Carolina |
| 67 | Carrie E. Archer | 46 | Wife | — | Massachusetts |
| 68 | Lucille M. Archer | 11 | Daughter | — | Massachusetts |
| 69 | Elias C. Strom | 67 | Head | Caretaker | Norway |
| 70 | Esther Strom | 65 | Wife | — | Norway |
| 71 | Dennis Gerrity | 85 | Head | — | Eire |
| 72 | Margaret Gerrity | 39 | Daughter | Matron | Massachusetts |
| 73 | Maia J. Gerrity | 31 | Son | Lineman | Massachusetts |
| 74 | Charles Hannon | 14 | Grand Son | — | Massachusetts |
| 75 | Henry A. Malloy | 63 | Head | Plumber | England |
| 76 | Thomas Malloy | 56 | Brother | — | England |
| 77 | Henry Hoene | 59 | Head | Wood Carver | Germany |
| 78 | Fred Hill | 80 | Lodger | — | Massachusetts |
| 79 | Benjamin Martin | 54 | Head | Stock Clerk | New York |
| 80 | Agnes Martin | 54 | 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)