WC
William Callahan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Bristol-County, Massachusetts
Our Model Tree links this William Callahan across the 1930 and 1940 US Censuses in Bristol-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 7-person household.
Age 15
b. ~1925
Male
Son
Born: Rhode Island
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Bristol-County, Massachusetts |
| Surname | Callahan |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| 1935 Residence (City) | Attleboro City |
| 1935 Residence (County) | Bristol |
| Additional Details | |
| Occupation | Bakery Salesman |
| Industry | Own Business |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
| Occupation | Bakery Salesman |
| Township / Ward | Attleboro City |
| 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Joseph Callahan | Son | — | 13 | ~1927 |
| Clinstina Callahan | Daughter | — | 7 | ~1933 |
| Christina Callahan | Spouse | — | 43 | ~1897 |
| Raymond Callahan | Son | — | 10 | ~1930 |
| Ruth Callahan | Daughter | — | 4 | ~1936 |
| William Callahan | Son | — | 15 | ~1925 |
| William Callahan | Head | — | 45 | ~1895 |
Census Appearances
1930
Bristol, Massachusetts
Son, age 5
Bristol, Massachusetts · implied b. ~1925 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Callahan |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| Father's Birthplace | Rhode Island |
| Mother's Birthplace | Rhode Island |
| Can Read/Write | No |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
1940
Bristol-County, Massachusetts
Son, age 15
Bristol-County, Massachusetts · implied b. ~1925 — 7 household members
| Surname | Callahan |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| 1935 Residence (City) | Attleboro City |
| 1935 Residence (County) | Bristol |
| Occupation | Bakery Salesman |
| Industry | Own Business |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
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 Callahan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Callahan
Son · 1940 · age 15 · b. ~1925 · Massachusetts
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Sibling
Raymond Callahan
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Callahan
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clinstina Callahan
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Callahan
Sibling · 1940 · age 4
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 — Bristol-County, Massachusetts
Open full size
1940 US Federal Census — Bristol-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01571-00280)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Stella Woodcock | 25 | Daughter | Inspector | Rhode Island |
| 42 | Arthur Woodcock | 22 | Son | Store Keeper | Rhode Island |
| 43 | Joseph Woodcock | 21 | Son | Floor Worker | Rhode Island |
| 44 | Ann Woodcock | 17 | Daughter | Battery Hand | Rhode Island |
| 45 | Harold Milligan | 33 | Head | Clerk & Driver | Rhode Island |
| 46 | Lucy Milligan | 31 | Wife | — | England |
| 47 | Joan Milligan | 4 | Daughter | — | Rhode Island |
| 48 | Lizzie Taylor | 63 | Mother-in-law | — | England |
| 49 | James Wallace | 51 | Head | Manager | Scotland |
| 50 | Rosemond Wallace | 49 | Wife | — | Canada French |
| 51 | Bernice Wallace | 23 | Daughter | Secretary | Michigan |
| 52 | George Mielnik | 63 | Head | Laborer | Austria |
| 53 | Josephine Mielnik | 60 | Wife | — | Austria |
| 54 | Joseph St. Lawrence | 24 | Head | Fireman | Massachusetts |
| 55 | Georgiana St. Lawrence | 22 | Wife | Spooler | Rhode Island |
| 56 | Albert St. Lawrence | 19 | Brother | Model Maker | Massachusetts |
| 57 | Donalda St. Lawrence | 47 | Mother | — | Rhode Island |
| 58 | Joseph Coyle | 60 | Head | Laborer | Rhode Island |
| 59 | Ethel Coyle | 54 | Wife | — | England |
| 60 | Arnold Coyle | 29 | Son | Lacquer Finisher | Rhode Island |
| 61 | Lily Coyle | 26 | Wife | Optical Worker | Rhode Island |
| 62 | Cosmie Tate | 70 | Head | Blacksmith | New Brunswick |
| 63 | Nelson Tate | 33 | Son | Cooper | Maine |
| 64 | Olive Tate | 29 | Daughter | Pruner | Rhode Island |
| 65 | Alphonse Joseph Quinn | 41 | Head | Receiving Clerk | Rhode Island |
| 66 | Ida Quinn | 35 | Wife | — | Massachusetts |
| 67 | Francis M. Quinn | 6 | Son | — | Massachusetts |
| 68 | Jacob H. Mcgowan | 69 | Brother-in-law | — | Rhode Island |
| 69 | Margaret Mcgowan | 63 | Sister-in-law | — | Irish Free State |
| 70 | William Callahan | 45 | Head | Designer & Cutter | Rhode Island |
| 71 | Christina Callahan | 43 | Wife | — | Rhode Island |
| 72 | William Callahan THIS PERSON | 15 | Son | Bakery Salesman | Rhode Island |
| 73 | Joseph Callahan | 13 | Son | — | Rhode Island |
| 74 | Raymond Callahan | 10 | Son | — | Massachusetts |
| 75 | Clinstina Callahan | 7 | Daughter | — | Massachusetts |
| 76 | Ruth Callahan | 4 | Daughter | — | Massachusetts |
| 77 | Albie M. Bonneau | 47 | Head | Painter | Canada French |
| 78 | Alice D. Bonneau | 46 | Wife | Drawer In | Rhode Island |
| 79 | Raymond Bonneau | 23 | Son | Painter | Rhode Island |
| 80 | Theresa Bonneau | 20 | Daughter | Polisher | Rhode Island |
Related Census Records
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)