JC
John Cassidy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Queens-County, New York
Our Model Tree links this John Cassidy across the 1910, 1920, 1930 and 1940 US Censuses in Queens-County, New York (XGBoost, ~Confirmed) — first a head (b.~1882), then head of a 6-person household.
Age 58
b. ~1882
Male
Head
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Queens-County, New York |
| Surname | Cassidy |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Queens Borough |
| 1935 Residence (County) | Queens |
| Additional Details | |
| Occupation | Auto Engineer |
| Industry | City |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 2040 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Auto Engineer |
| Township / Ward | Queens Borough |
| Est. Birth Year | ~1882 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Cassidy | Daughter | — | 11 | ~1929 |
| John Cassidy | Head | — | 58 | ~1882 |
| William Cassidy | Son | — | 6 | ~1934 |
| John Cassidy | Son | — | 17 | ~1923 |
| Peter Cassidy | Son | — | 8 | ~1932 |
| Elizabeth Cassidy | Spouse | — | 37 | ~1903 |
Census Appearances
1910
Queens, New …
Head, age 26
Queens, New York · implied b. ~1884 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cassidy |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | New York |
| Years Married | 2 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | bricklayer |
| Industry | masonry |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1920
Queens, New …
Head, age 36
Queens, New York · implied b. ~1884 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cassidy |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Bricklayer |
| Industry | Building |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Queens, New …
Head, age 48
Queens, New York · implied b. ~1882 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cassidy |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | New York |
| Age at First Marriage | 22 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Laborer |
| Industry | Gas Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 20 |
| Radio Set | R |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Queens-County, New …
Head, age 58
Queens-County, New York · implied b. ~1882 — 6 household members
| Surname | Cassidy |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Queens Borough |
| 1935 Residence (County) | Queens |
| Occupation | Auto Engineer |
| Industry | City |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 2040 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 John Cassidy across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Cassidy
Head · 1940 · age 58 · b. ~1882 · New York
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Queens-County, New York
Open full size
1940 US Federal Census — Queens-County, New York
Page Contents
18 people indexed on this census page (nara:1940:m-t0627-02734-00314)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Neila Carty | 20 | Daughter | — | New York |
| 42 | Adolph Lurty | 56 | Head | Chauffeur | New York |
| 43 | Hattie Lurty | 56 | Wife | — | Germany |
| 44 | James Sheridan | 54 | Lodger | — | New York |
| 45 | Catherine Ruig | 57 | Head | — | New York |
| 46 | Gertrude Ruig | 24 | Daughter | — | New York |
| 47 | Joseph Brown | 56 | Brother | Stage Hand | New York |
| 48 | Anne Feely | 58 | Sister | Stenographer | New York |
| 49 | John Cassidy THIS PERSON | 58 | Head | Auto Engineer | New York |
| 50 | Elizabeth Cassidy | 37 | Wife | — | New York |
| 51 | John Cassidy | 17 | Son | — | New York |
| 52 | Elizabeth Cassidy | 11 | Daughter | — | New York |
| 53 | Peter Cassidy | 8 | Son | — | New York |
| 54 | William Cassidy | 6 | Son | — | New York |
| 55 | Madden C. Jacobi | 44 | Head | — | New York |
| 56 | Edward M. Jacobi | 20 | Son | Theatrical Lighting | New York |
| 57 | Mary Grace Jacobi | 16 | Daughter | — | New York |
| 58 | Thomas J. Jacobi | 12 | Son | — | New York |
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)