WC
William Connell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this William Connell across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 7-person household.
Age 11
b. ~1929
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Connell |
| Given Name | William M. 3rd |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Belmont |
| Additional Details | |
| Highest Grade | 5 |
| 1935 Residence | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1929 |
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 |
|---|---|---|---|---|
| William Connell | Head | — | 34 | ~1906 |
| Margaret Connell | Spouse | — | 37 | ~1903 |
| Lawrence Connell | Son | — | 8 | ~1932 |
| Barbara Connell | Daughter | — | 10 | ~1930 |
| William Connell | Other | — | 65 | ~1875 |
| William Connell | Son | — | 11 | ~1929 |
| Margaret Connell | Daughter | — | 7 | ~1933 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 1
Suffolk, Massachusetts · implied b. ~1929 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connell |
| Given Name | William M |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 11
Suffolk-County, Massachusetts · implied b. ~1929 — 7 household members
| Surname | Connell |
| Given Name | William M. 3rd |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Belmont |
| Highest Grade | 5 |
| 1935 Residence | Massachusetts |
| 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 Connell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Connell
Son · 1940 · age 11 · b. ~1929 · Massachusetts
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Sibling
Lawrence Connell
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Connell
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Connell
Sibling · 1940 · age 10
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-t0627-01682-00386)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John G. Waters | 27 | Head | Truck Driver | Massachusetts |
| 2 | Alice F. Waters | 24 | Wife | — | Massachusetts |
| 3 | Martha Anne Waters | 2 | Daughter | — | Massachusetts |
| 4 | John G. Jr Waters | 1 | Son | — | Massachusetts |
| 5 | Thomas F. O'Hara | 35 | Head | Station Attendant | Massachusetts |
| 6 | Valida O'Hara | 36 | Wife | — | Massachusetts |
| 7 | John H. O'Hara | 7 | Son | — | Massachusetts |
| 8 | Carolyn O'Hara | 4 | Daughter | — | Massachusetts |
| 9 | William M. Jr Connell | 34 | Head | Laborer | Massachusetts |
| 10 | Margaret E. Connell | 37 | Wife | — | Massachusetts |
| 11 | William M. 3Rd Connell THIS PERSON | 11 | Son | — | Massachusetts |
| 12 | Barbara Anne Connell | 10 | Daughter | — | Massachusetts |
| 13 | Lawrence Connell | 8 | Son | — | Massachusetts |
| 14 | Margaret L. Connell | 7 | Daughter | — | Massachusetts |
| 15 | William M. Connell | 65 | Father | — | Massachusetts |
| 16 | Ellen E. K. Welch | 50 | Head | — | Massachusetts |
| 17 | Francis Welch | 47 | Brother | Butcher | Massachusetts |
| 18 | Arthur L. Welch | 54 | Brother | Butcher | Massachusetts |
| 19 | Bernard T. Kane | 41 | Head | Carpenter | Massachusetts |
| 20 | Christine Kane | 33 | Wife | — | Massachusetts |
| 21 | Donald R. Kane | 1 | Son | — | Massachusetts |
| 22 | George Bulmer | 48 | Head | Truck Mechanic | Canada-English |
| 23 | Katherine Bulmer | 48 | Wife | — | Massachusetts |
| 24 | Marion Bulmer | 23 | Daughter | Radio Tube Tester | Massachusetts |
| 25 | Robert Bulmer | 20 | Son | Service Man | Massachusetts |
| 26 | Arlene Bulmer | 15 | Daughter | — | Massachusetts |
| 27 | Paul Bulmer | 9 | Son | — | Massachusetts |
| 28 | Alexander De Cicco | 28 | Head | Plate Maker | New York |
| 29 | Mary De Cicco | 25 | Wife | — | New Jersey |
| 30 | Catherine De Cicco | 6 | Daughter | — | New Jersey |
| 31 | Marshall Caccataro | 44 | Head | Building Contractor | Italy |
| 32 | Emily Caccataro | 34 | Wife | — | Italy |
| 33 | Mary Caccataro | 18 | Daughter | — | Massachusetts |
| 34 | Louis Caccataro | 13 | Son | — | Massachusetts |
| 35 | Marshall Jr. Caccataro | 3 | Son | — | Massachusetts |
| 36 | William Mutch | 65 | Head | Custodian | Scotland |
| 37 | Annie Mutch | 53 | Wife | — | England |
| 38 | Beatrice Mutch | 28 | Daughter | Sales Girl | Massachusetts |
| 39 | Viola Mutch | 26 | Daughter | Sales Girl Haberdashery | Massachusetts |
| 40 | Thomas Mutch | 23 | Son | Salesman | 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)