JC
James Cassidy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hampden-County, Massachusetts
Our Model Tree links this James Cassidy across the 1930 and 1940 US Censuses in Hampden-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 7-person household.
Age 17
b. ~1923
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hampden-County, Massachusetts |
| Surname | Cassidy |
| Given Name | James Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Holyoke |
| 1935 Residence (County) | Hampden |
| Additional Details | |
| Occupation | none |
| Income (1939) | 0 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Holyoke |
| Est. Birth Year | ~1923 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Honora Cassidy | Spouse | — | 51 | ~1889 |
| Margaret Cassidy | Daughter | — | 13 | ~1927 |
| Helen Cassidy | Daughter | — | 9 | ~1931 |
| Mary Cassidy | Daughter | — | 15 | ~1925 |
| James Cassidy | Son | — | 17 | ~1923 |
| Kathleen Cassidy | Daughter | — | 6 | ~1934 |
| James Cassidy | Head | — | 47 | ~1893 |
Census Appearances
1930
Hampden, Massachusetts
Son, age 7
Hampden, Massachusetts · implied b. ~1923 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cassidy |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Hampden-County, Massachusetts
Son, age 17
Hampden-County, Massachusetts · implied b. ~1923 — 7 household members
| Surname | Cassidy |
| Given Name | James Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Holyoke |
| 1935 Residence (County) | Hampden |
| Occupation | none |
| Income (1939) | 0 |
| Highest Grade | Hs 3 |
| 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 Cassidy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Cassidy
Son · 1940 · age 17 · b. ~1923 · Massachusetts
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Sibling
Mary Cassidy
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kathleen Cassidy
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Cassidy
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Cassidy
Sibling · 1940 · age 13
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 — Hampden-County, Massachusetts
Open full size
1940 US Federal Census — Hampden-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01595-00308)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James J. Cassidy | 47 | Head | Laborer | Eire |
| 2 | Honora Cassidy | 51 | Wife | House Wife | Eire |
| 3 | James Jr. Cassidy THIS PERSON | 17 | Son | None | Massachusetts |
| 4 | Mary Cassidy | 15 | Daughter | None | Massachusetts |
| 5 | Margaret Cassidy | 13 | Daughter | — | Massachusetts |
| 6 | Helen Cassidy | 9 | Daughter | — | Massachusetts |
| 7 | Kathleen Cassidy | 6 | Daughter | — | Massachusetts |
| 8 | Leon Renaud | 34 | Head | Laborer | Massachusetts |
| 9 | John West | 48 | Head | Laborer | Massachusetts |
| 10 | Ruth West | 42 | Wife | House Wife | Massachusetts |
| 11 | John Jr. West | 17 | Son | None | Massachusetts |
| 12 | George West | 15 | Son | None | Massachusetts |
| 13 | Francis West | 14 | Son | None | Massachusetts |
| 14 | Edward West | 13 | Son | — | Massachusetts |
| 15 | Ruth West | 10 | Daughter | — | Massachusetts |
| 16 | William West | 9 | Son | — | Massachusetts |
| 17 | Mae West | 4 | Daughter | — | Massachusetts |
| 18 | George Wkurjoski | 28 | Son | Laborer | Massachusetts |
| 19 | Anthony Wkurjoski | 58 | Head | Retired | Poland |
| 20 | Joseph Wkurjoski | 26 | Son | None | Connecticut |
| 21 | Sophie Wkurjoski | 22 | Daughter | House Keeper | Massachusetts |
| 22 | Henry Hinkes | 31 | Head | Laborer | England |
| 23 | Anna Hinkes | 29 | Wife | House Wife | Massachusetts |
| 24 | Edwin Hinkes | 12 | Son | — | Massachusetts |
| 25 | Frederick Haas | 36 | Head | Mill Wright | Massachusetts |
| 26 | Pauline Haas | 36 | Wife | House Wife | Massachusetts |
| 27 | Frederick Jr. Haas | 17 | Son | None | Massachusetts |
| 28 | Shirley Haas | 15 | Daughter | None | Massachusetts |
| 29 | Pauline Haas | 14 | Daughter | None | Massachusetts |
| 30 | Beverly Haas | 12 | Daughter | — | Massachusetts |
| 31 | Isabelle Haas | 10 | Daughter | — | Massachusetts |
| 32 | Ernest Haas | 8 | Son | — | Massachusetts |
| 33 | Joseph Vachon | 75 | Head | Retired | Canada French |
| 34 | Rose Vachon | 30 | Daughter | House Keeper | Canada French |
| 35 | Evelyn Fletcher | 27 | Head | House Keeper | Massachusetts |
| 36 | Marion Fletcher | 10 | Daughter | — | Massachusetts |
| 37 | Shirley Fletcher | 5 | Daughter | — | Massachusetts |
| 38 | Joseph Lablevic | 77 | Head | Retired | Canada French |
| 39 | John Price | 50 | Head | Laborer | Tennessee |
| 40 | Ida Price | 40 | Wife | Housewife | 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)