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James Sweeney — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this James Sweeney across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Bartholomew & Margaret — first a head (b.~1903), then head of a 4-person household.
Age 37
b. ~1903
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Sweeney |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Baggageman |
| Industry | Steam Railroad |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1380 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Baggageman |
| Township / Ward | Boston City |
| Est. Birth Year | ~1903 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Evelyn Sweeney | Daughter | — | 9 | ~1931 |
| James Sweeney | Head | — | 37 | ~1903 |
| James Sweeney | Son | — | 10 | ~1930 |
| Martha Sweeney | Spouse | — | 38 | ~1902 |
Census Appearances
1920
Suffolk, Massachusetts
Son, age 18
Suffolk, Massachusetts · implied b. ~1902 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sweeney |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | sole-sorter |
| Industry | leather-house |
| Class of Worker | W |
| Can Read | No |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Son, age 28
Suffolk, Massachusetts · implied b. ~1902 — 14 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sweeney |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Letter Carrier |
| Industry | Post Office |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Head, age 37
Suffolk-County, Massachusetts · implied b. ~1903 — 4 household members
| Surname | Sweeney |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Occupation | Baggageman |
| Industry | Steam Railroad |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1380 |
| 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 James Sweeney across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Bartholomew Sweeney (~0.92 confidence) and mother Margaret Sweeney (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Bartholomew Sweeney
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Margaret Sweeney
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Sweeney
Head · 1940 · age 37 · b. ~1903 · Massachusetts
★ You are viewing this record
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-t0627-01682-00785)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anne M Hayes | 21 | Daughter | Steno Typist | Massachusetts |
| 2 | Theresa Hayes | 20 | Daughter | File Clerk | Massachusetts |
| 3 | Harry G Hayes | 13 | Son | — | Massachusetts |
| 4 | Evelyn Hayes | 11 | Daughter | — | Massachusetts |
| 5 | John F Hayes | 6 | Son | — | Massachusetts |
| 6 | Christine Mcalee | 58 | Head | — | Irish Free State |
| 7 | Joseph Mcalee | 31 | Son | Elevator Operator | Massachusetts |
| 8 | Albert Mcalee | 28 | Son | Laborer | Massachusetts |
| 9 | Daniel Mcalee | 16 | Son | — | Massachusetts |
| 10 | William Butler | 43 | Head | Freight Agent | Massachusetts |
| 11 | Ruth Butler | 40 | Wife | — | Massachusetts |
| 12 | Jessie Balsom | 87 | Head | — | Canada-English |
| 13 | Margaret Pfizenmaier | 68 | Head | — | Pennsylvania |
| 14 | Margaret D Pfizenmaier | 27 | Daughter | Tabulator | Pennsylvania |
| 15 | Harold Gilman | 35 | Head | Accountant | Massachusetts |
| 16 | Annie Gilman | 36 | Wife | — | Canada-English |
| 17 | Mary Drysdale | 75 | Aunt | — | Canada-English |
| 18 | Anna Flewelling | 80 | Head | — | Canada-English |
| 19 | Lionel Flewelling | 49 | Son | Wood Worker | Massachusetts |
| 20 | Hilda Flewelling | 47 | Daughter | — | Massachusetts |
| 21 | Ada Flewelling | 17 | Daughter | — | Massachusetts |
| 22 | End Of Block 12 - Beginning Block 13 | None | — | — | — |
| 23 | Bernard F Murphy | 58 | Head | Inspector | Massachusetts |
| 24 | Mary Murphy | 58 | Wife | — | Irish Free State |
| 25 | Thomas F Maguire | 67 | Head | Chauffeur | Irish Free State |
| 26 | Catherine Maguire | 70 | Wife | — | Irish Free State |
| 27 | Helen E Maguire | 29 | Daughter | Secretary Typist | Massachusetts |
| 28 | James Sweeney THIS PERSON | 37 | Head | Baggageman | Massachusetts |
| 29 | Martha Sweeney | 38 | Wife | — | Massachusetts |
| 30 | James Jr Sweeney | 10 | Son | — | Massachusetts |
| 31 | Evelyn Sweeney | 9 | Daughter | — | Massachusetts |
| 32 | Thomas M Burke | 45 | Head | Embalmer | Massachusetts |
| 33 | Catherine Burke | 37 | Wife | — | Massachusetts |
| 34 | Thomas Jr Burke | 9 | Son | — | Massachusetts |
| 35 | Mary Reagan | 71 | Mother-in-law | — | Irish Free State |
| 36 | Francis Reagan | 31 | Son-in-law | Welder | Massachusetts |
| 37 | Charles Boylen | 49 | Head | Salesman | Massachusetts |
| 38 | Madeline Boylen | 46 | Wife | — | Massachusetts |
| 39 | Richard Boylen | 15 | Son | — | Massachusetts |
| 40 | Harry Jackson | 48 | Head | Purchasing Agent | England |
Related Census Records
Pedigree Summary
James
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)