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James Sweeney — 1940 US Census Record
Model Tree available1940 United States Federal Census · Worcester-County, Massachusetts
Our Model Tree links this James Sweeney across the 1920, 1930 and 1940 US Censuses in Worcester-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Dennis & Catherine — first a son (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Worcester-County, Massachusetts |
| Surname | Sweeney |
| Given Name | James H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester City |
| 1935 Residence (County) | Worcester |
| Additional Details | |
| Occupation | Traveling Salesman |
| Industry | Scrap Corp |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 1200 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Traveling Salesman |
| Township / Ward | Worcester City |
| Est. Birth Year | ~1919 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Mary Sweeney | Daughter | — | 18 | ~1922 |
| Timothy Sweeney | Head | — | 45 | ~1895 |
| William Sweeney | Son | — | 14 | ~1926 |
| Michael Sweeney | Son | — | 23 | ~1917 |
| James Sweeney | Son | — | 21 | ~1919 |
| Sarah Sweeney | Spouse | — | 46 | ~1894 |
Census Appearances
1920
Worcester, Massachusetts
Son, age 1
Worcester, Massachusetts · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sweeney |
| Given Name | James |
| 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 |
1930
Worcester, Massachusetts
Son, age 11
Worcester, Massachusetts · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sweeney |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Worcester-County, Massachusetts
Son, age 21
Worcester-County, Massachusetts · implied b. ~1919 — 6 household members
| Surname | Sweeney |
| Given Name | James H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester City |
| 1935 Residence (County) | Worcester |
| Occupation | Traveling Salesman |
| Industry | Scrap Corp |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 1200 |
| 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 James Sweeney across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Dennis Sweeney (~0.81 confidence) and mother Catherine Sweeney (~0.81 confidence) and mother Sarah Sweeney (~0.92 confidence) and father Timothy Sweeney (~0.92 confidence). The pedigree spans 2 generations with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.86
Father
Dennis Sweeney
b. ~1867
Source father>father
● Household
· direct · ~0.81
Mother
Catherine Sweeney
b. ~1868
Source father>mother
● Household
· direct · ~0.81
Mother
Sarah Sweeney
b. ~1894
Source mother
● Household
· direct · ~0.92
Father
Timothy Sweeney
b. ~1895
Source father
● Household
· direct · ~0.92
This person
Anchor record
James Sweeney
Son · 1940 · age 21 · b. ~1919 · Massachusetts
★ You are viewing this record
Sibling
William Sweeney
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Sweeney
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Sweeney
Sibling · 1940 · age 18
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 — Worcester-County, Massachusetts
Open full size
1940 US Federal Census — Worcester-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01719-00516)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Timothy E Sweeney | 45 | Head | Traveling Salesman | Massachusetts |
| 2 | Sarah H Sweeney | 46 | Wife | — | Massachusetts |
| 3 | Michael E Sweeney | 23 | Son | Traveling Salesman | Massachusetts |
| 4 | James H Sweeney THIS PERSON | 21 | Son | Traveling Salesman | Massachusetts |
| 5 | Mary V Sweeney | 18 | Daughter | — | Massachusetts |
| 6 | William R Sweeney | 14 | Son | — | Massachusetts |
| 7 | Sweeney | None | — | — | — |
| 8 | Howard R Ullrich | 43 | Head | Tax Collector | Pennsylvania |
| 9 | Helen A Ullrich | 43 | Wife | — | Massachusetts |
| 10 | Harrison Ullrich | 9 | Son | — | Massachusetts |
| 11 | Ardellia J Ullrich | 80 | Mother | — | Massachusetts |
| 12 | Ullrich | None | — | — | — |
| 13 | Ralph H Levin | 40 | Head | Chiropodist | Connecticut |
| 14 | Philla Levin | 40 | Wife | — | Connecticut |
| 15 | Janet Levin | 10 | Daughter | — | New York |
| 16 | Hilda Johnson | 69 | Mother-in-law | — | Sweden |
| 17 | Johnson | None | — | — | — |
| 18 | Frank Sassa | 63 | Head | Painter | Germany |
| 19 | Belle Sassa | 59 | Wife | — | Massachusetts |
| 20 | Annie B Lincoln | 84 | Mother-in-law | — | Maine |
| 21 | Fred S Cary | 32 | Head | Owner | Massachusetts |
| 22 | Elsie C Cary | 32 | Wife | — | Massachusetts |
| 23 | Fred S Jr Cary | 8 | Son | — | Massachusetts |
| 24 | Elizabeth B Cary | 72 | Mother | — | Pennsylvania |
| 25 | Charles M Cary | 39 | Brother | Crane Operator | Massachusetts |
| 26 | Judith M Cary | 4 | Niece | — | Massachusetts |
| 27 | Cary | None | — | — | — |
| 28 | William J Pigeon | 33 | Head | Treasurer | Massachusetts |
| 29 | Gladys E Pigeon | 34 | Wife | — | Massachusetts |
| 30 | Paul W Pigeon | 3 | Son | — | Massachusetts |
| 31 | Alfred R Myers | 36 | Head | Hunting Inspector | Massachusetts |
| 32 | Louise M Myers | 35 | Wife | — | Massachusetts |
| 33 | Roland A Myers | 7 | Son | — | Massachusetts |
| 34 | Rochelle Y Myers | 33 | Sister | — | Massachusetts |
| 35 | Clyde Wurst | 55 | Head | Truck Driver | Nova Scotia |
| 36 | Stella E Wurst | 56 | Wife | — | Nova Scotia |
| 37 | John Isabelle | 30 | Head | Carpenter | Maine |
| 38 | Lillian Isabelle | 29 | Wife | Waitress | Rhode Island |
| 39 | Armand A Belisle | 40 | Head | Compositor | Massachusetts |
| 40 | Margaret H Belisle | 40 | Wife | — | Massachusetts |
Pedigree Summary
James + 3 siblings
Gen 1 · 2 parents
~0.92
Gen 2 · 2 grandparents
~0.81
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)