TS
Thomas Sweeney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Thomas Sweeney across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1913), then head of a 10-person household.
Age 27
b. ~1913
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Sweeney |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Arlington |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Salesman |
| Industry | Auto Accessories |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 900 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Salesman |
| Township / Ward | Arlington |
| Est. Birth Year | ~1913 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Thomas Sweeney | Son | — | 27 | ~1913 |
| James Sweeney | Head | — | 65 | ~1875 |
| Martin Sweeney | Son | — | 22 | ~1918 |
| Joseph Sweeney | Son | — | 24 | ~1916 |
| Mary Sweeney | Spouse | — | 64 | ~1876 |
| Genevieve Sweeney | Daughter | — | 34 | ~1906 |
| Marie Sweeney | Daughter | — | 29 | ~1911 |
| Barbara Sweeney | Daughter | — | 19 | ~1921 |
| John Sweeney | Son | — | 26 | ~1914 |
| Bertha Sweeney | Daughter | — | 19 | ~1921 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 17
Middlesex, Massachusetts · implied b. ~1913 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sweeney |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland North |
| Mother's Birthplace | Ireland North |
| Occupation | Clerk |
| Industry | Grocery Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 27
Middlesex-County, Massachusetts · implied b. ~1913 — 10 household members
| Surname | Sweeney |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Arlington |
| 1935 Residence (County) | Middlesex |
| Occupation | Salesman |
| Industry | Auto Accessories |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 900 |
| 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 Thomas Sweeney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Thomas Sweeney
Son · 1940 · age 27 · b. ~1913 · Massachusetts
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Sibling
John Sweeney
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Sweeney
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Sweeney
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Sweeney
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martin Sweeney
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bertha Sweeney
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Genevieve Sweeney
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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01601-00955)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Donald Higgins | 31 | Son | Salesman | Massachusetts |
| 42 | Charles O'Brien | 32 | Head | Tallyman | Massachusetts |
| 43 | Catherine O'Brien | 29 | Wife | — | Massachusetts |
| 44 | Robert O'Brien | 6 | Son | — | Massachusetts |
| 45 | William O'Brien | 6 | Son | — | Massachusetts |
| 46 | Carl Bosworth | 42 | Head | Clerk | Massachusetts |
| 47 | Emma Bosworth | 42 | Wife | — | Massachusetts |
| 48 | Vera Bosworth | 19 | Daughter | Saleslady | Massachusetts |
| 49 | Patrick Murray | 25 | Head | Glass Blower | Eire |
| 50 | Mary Murray | 21 | Wife | — | Massachusetts |
| 51 | Cynthia Murray | 1 | Daughter | — | Massachusetts |
| 52 | Josephine Anno | 54 | Head | — | Italy |
| 53 | Anthony Anno | 36 | Son | Laborer | Massachusetts |
| 54 | Joseph Anno | 35 | Son | Laborer | Massachusetts |
| 55 | Lillian Anno | 27 | Daughter | Chiropodist | Massachusetts |
| 56 | George Mauney | 58 | Lodger | Foreman | Eire |
| 57 | James Sweeney | 65 | Head | Operator | Eire |
| 58 | Mary Sweeney | 64 | Wife | — | Massachusetts |
| 59 | Genevieve Sweeney | 34 | Daughter | Saleslady | Massachusetts |
| 60 | Marie Sweeney | 29 | Daughter | Machinist | Massachusetts |
| 61 | Thomas Sweeney THIS PERSON | 27 | Son | Salesman | Massachusetts |
| 62 | John Sweeney | 26 | Son | Gardener | Massachusetts |
| 63 | Joseph Sweeney | 24 | Son | Salesman | Massachusetts |
| 64 | Martin Sweeney | 22 | Son | Attendant | Massachusetts |
| 65 | Bertha Sweeney | 19 | Daughter | New Worker | Massachusetts |
| 66 | Barbara Sweeney | 19 | Daughter | New Worker | Massachusetts |
| 67 | Eugene Sweeney | 33 | Head | Salesman | Massachusetts |
| 68 | Gertrude Sweeney | 27 | Wife | — | Massachusetts |
| 69 | Robert Sweeney | 1 | Son | — | Massachusetts |
| 70 | John Sweeney | 26 | Head | Accounting | Massachusetts |
| 71 | Dorothy Sweeney | 26 | Wife | — | Massachusetts |
| 72 | Donald Sweeney | 2 | Son | — | Massachusetts |
| 73 | Mabel Sweeney | 56 | Mother | Waitress | Massachusetts |
| 74 | Geneva Landry | 63 | Head | — | Massachusetts |
| 75 | Bernice Landry | 27 | Daughter | Teacher | Massachusetts |
| 76 | Alexander Anthony | 72 | Head | — | Scotland |
| 77 | Mary Anthony | 71 | Wife | — | England |
| 78 | John Anderson | 70 | Head | Laborer | Sweden |
| 79 | Annie Anderson | 64 | Wife | — | Sweden |
| 80 | William Duggan | 44 | Head | Salesman | Massachusetts |
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)