JC
James Cassidy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Warren-County, New Jersey
Our Model Tree links this James Cassidy across the 1930 and 1940 US Censuses in Warren-County, New Jersey (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 13-person household.
Age 20
b. ~1920
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Warren-County, New Jersey |
| Surname | Cassidy |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Oxford |
| 1935 Residence (County) | Warren |
| Additional Details | |
| Occupation | Clerk |
| Industry | Grocery Store |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 220 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Clerk |
| Township / Ward | Oxford |
| Est. Birth Year | ~1920 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Ruth Howell | Other | — | 24 | ~1916 |
| John Cassidy | Son | — | 16 | ~1924 |
| Margaret Cassidy | Daughter | — | 5 | ~1935 |
| Della Cassidy | Head | — | 39 | ~1901 |
| Florence Cassidy | Daughter | — | 14 | ~1926 |
| Joan Howell | Other | — | 2 | ~1938 |
| Thomas Cassidy | Son | — | 19 | ~1921 |
| Wilbur Howell | Other | — | 8 | ~1932 |
| Betty Howell | Other | — | 6 | ~1934 |
| Donald Cassidy | Son | — | 10 | ~1930 |
| Robert Howell | Other | — | 4 | ~1936 |
| James Cassidy | Son | — | 20 | ~1920 |
| Ruth Cassidy | Daughter | — | 8 | ~1932 |
Census Appearances
1930
Warren, New …
Son, age 9
Warren, New Jersey · implied b. ~1921 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cassidy |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Warren-County, New …
Son, age 20
Warren-County, New Jersey · implied b. ~1920 — 13 household members
| Surname | Cassidy |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Oxford |
| 1935 Residence (County) | Warren |
| Occupation | Clerk |
| Industry | Grocery Store |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 220 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 20 · b. ~1920 · New Jersey
★ You are viewing this record
Sibling
Donald Cassidy
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Cassidy
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Cassidy
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Cassidy
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Florence Cassidy
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Cassidy
Sibling · 1940 · age 8
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 — Warren-County, New Jersey
Open full size
1940 US Federal Census — Warren-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02391-00613)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Emma T. Deringer | 17 | Daughter | Domestic | New Jersey |
| 42 | John Sabbeskert | 67 | Lodger | Overshelper | New Jersey |
| 43 | Samuel Snyder | 63 | Head | — | Pennsylvania |
| 44 | Frances Snyder | 63 | Wife | — | New Jersey |
| 45 | Ruth Snyder | 40 | Daughter | Hosiery Topper | Pennsylvania |
| 46 | Paul Snyder | 38 | Son | Machine Operator | New Jersey |
| 47 | Margaret Snyder | 23 | Daughter | Hosiery Topper | Pennsylvania |
| 48 | Della Cassidy | 39 | Head | Lodging House Keeper | New Jersey |
| 49 | James Cassidy THIS PERSON | 20 | Son | Clerk | New Jersey |
| 50 | Thomas Cassidy | 19 | Son | Barber Shop | New Jersey |
| 51 | John Cassidy | 16 | Son | Farm Laborer | New Jersey |
| 52 | Florence Cassidy | 14 | Daughter | — | New Jersey |
| 53 | Donald Cassidy | 10 | Son | — | New Jersey |
| 54 | Ruth Cassidy | 8 | Daughter | — | New Jersey |
| 55 | Margaret Cassidy | 5 | Daughter | — | New Jersey |
| 56 | Ruth Howell | 24 | Lodger | — | New Jersey |
| 57 | Wilbur Howell | 8 | Lodger | — | New Jersey |
| 58 | Betty Howell | 6 | Lodger | — | New Jersey |
| 59 | Robert Howell | 4 | Lodger | — | New Jersey |
| 60 | Joan Howell | 2 | Lodger | — | New Jersey |
| 61 | Oliver Devett | 42 | Head | Blaster | New Jersey |
| 62 | Sarah Devett | 38 | Wife | — | New Jersey |
| 63 | Alfred Devett | 21 | Son | Laborer | New Jersey |
| 64 | Clarence Devett | 18 | Son | Laborer | New Jersey |
| 65 | Joseph Devett | 17 | Son | Dish Washer | New Jersey |
| 66 | Oliver Devett | 14 | Son | — | New Jersey |
| 67 | Philip Devett | 9 | Son | — | New Jersey |
| 68 | Harry Devett | 7 | Son | — | New Jersey |
| 69 | Carrie Tittanyan | 75 | Head | — | New Jersey |
| 70 | Frances Tittanyan | 51 | Daughter | Librarian | New Jersey |
| 71 | Alfred Nattella | 72 | Head | — | Iowa |
| 72 | Marie Nattella | 47 | Wife | Inspector | Norway |
| 73 | Jennie Canning | 51 | Head | — | New Jersey |
| 74 | James Osted | 39 | Head | Post Master | New Jersey |
| 75 | Marie Osted | 34 | Wife | — | Pennsylvania |
| 76 | Fred Henderson | 45 | Head | Blacksmith Helper | New Jersey |
| 77 | Cora Henderson | 40 | Wife | Machine Operator | New Jersey |
| 78 | Dorothy Henderson | 17 | Daughter | — | New Jersey |
| 79 | Cyrus Vosseller | 70 | Head | — | New Jersey |
| 80 | Anne Vosseller | 70 | Wife | — | Pennsylvania |
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)