JC
James Crowley — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, New Jersey
Our Model Tree links this James Crowley across the 1930 and 1940 US Censuses in Middlesex-County, New Jersey (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 15-person household.
Age 13
b. ~1927
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, New Jersey |
| Surname | Crowley |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | New Market Village |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same House |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | New Market Village |
| Est. Birth Year | ~1927 |
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.
15 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Robert Crowley | Son | — | 10 | ~1930 |
| Robert Higgins | Other | — | 20 | ~1920 |
| Patrick Crowley | Son | — | 15 | ~1925 |
| Michael Crowley | Head | — | 43 | ~1897 |
| James Crowley | Son | — | 13 | ~1927 |
| Shirley Sylvester | Daughter | — | 9 | ~1931 |
| Margaret Crowley | Daughter | — | 7 | ~1933 |
| Bernard Crowley | Son | — | 5 | ~1935 |
| Katherine Crowley | Spouse | — | 42 | ~1898 |
| Michael Crowley | Son | — | 17 | ~1923 |
| John Crowley | Son | — | 20 | ~1920 |
| Jeremiah Crowley | Son | — | 11 | ~1929 |
| David Crowley | Son | — | 6 | ~1934 |
| Mary Sylvester | Spouse | — | 29 | ~1911 |
| Head Sylvester | Other | — | — |
Census Appearances
1930
Middlesex, New …
Son, age 3
Middlesex, New Jersey · implied b. ~1927 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Crowley |
| Given Name | James F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New York |
| Mother's Birthplace | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Middlesex-County, New …
Son, age 13
Middlesex-County, New Jersey · implied b. ~1927 — 15 household members
| Surname | Crowley |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | New Market Village |
| 1935 Residence (County) | Middlesex |
| Highest Grade | No 7 |
| 1935 Residence | Same House |
| 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 Crowley across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Crowley
Son · 1940 · age 13 · b. ~1927 · New Jersey
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Sibling
Bernard Crowley
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Sylvester
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patrick Crowley
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Crowley
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Crowley
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Crowley
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Crowley
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jeremiah Crowley
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Crowley
Sibling · 1940 · age 17
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 — Middlesex-County, New Jersey
Open full size
1940 US Federal Census — Middlesex-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02362-00459)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Margaret Tomcko | 22 | Daughter | Laborer | New York |
| 42 | Josephine Tomcko | 18 | Daughter | Hairdresser | New York |
| 43 | Albert Tomcko | 16 | Son | Salesman | New York |
| 44 | William Priestley | 25 | Head | Secretary | New Jersey |
| 45 | Celia Priestley | 27 | Wife | — | New Jersey |
| 46 | Irene Priestley | 2 | Daughter | — | New Jersey |
| 47 | Lois Priestley | 1 | Daughter | — | New Jersey |
| 48 | August Leibel | 56 | Head | Laborer | New Jersey |
| 49 | Alfred Leibel | 25 | Son | Assistant Operator | New Jersey |
| 50 | Bernice Swanson | 21 | Head | Laborer | New Jersey |
| 51 | Charles Swanson | 69 | Brother | — | Sweden |
| 52 | Carolina Swanson | 64 | Mother | — | Sweden |
| 53 | Katherine Swanson | 17 | Sister | Laborer | New Jersey |
| 54 | Michael Crowley | 43 | Head | Steam Fitter | New Jersey |
| 55 | Katherine Crowley | 42 | Wife | — | New Jersey |
| 56 | John Crowley | 20 | Son | Helper In Laboratory | New Jersey |
| 57 | Michael Crowley | 17 | Son | Helper In Laboratory | New Jersey |
| 58 | Patrick Crowley | 15 | Son | — | New Jersey |
| 59 | James Crowley THIS PERSON | 13 | Son | — | New Jersey |
| 60 | Jeremiah Crowley | 11 | Son | — | New Jersey |
| 61 | Robert Crowley | 10 | Son | — | New Jersey |
| 62 | Margaret Crowley | 7 | Daughter | — | New Jersey |
| 63 | David Crowley | 6 | Son | — | New Jersey |
| 64 | Bernard Crowley | 5 | Son | — | New Jersey |
| 65 | Head Sylvester | None | M | Building Construction | — |
| 66 | Mary Sylvester | 29 | Wife | — | New Jersey |
| 67 | Shirley Sylvester | 9 | Daughter | — | New Jersey |
| 68 | Robert Higgins | 20 | Son-in-law | Laborer | New Jersey |
| 69 | Vendel Vafcik | 45 | Head | Proprietor | Czechoslovakia |
| 70 | Maria Vafcik | 45 | Wife | — | Czechoslovakia |
| 71 | William Vafcik | 23 | Son | Helper | New Jersey |
| 72 | Mary Elizabeth Vafcik | 21 | Daughter | Stenographer | New Jersey |
| 73 | Frank Olkocki | 44 | Head | Chipper | Poland |
| 74 | Katy Olkocki | 44 | Wife | — | Poland |
| 75 | Stanley Olkocki | 16 | Son | — | Pennsylvania |
| 76 | Walter Olkocki | 14 | Son | — | Pennsylvania |
| 77 | Tommy Olkocki | 13 | Son | — | Pennsylvania |
| 78 | Residence Elsewhere | None | — | — | — |
| 79 | (Only Home Week-Ends - Census Taken In New York) | None | — | — | — |
| 80 | Frank Plaskon | 48 | Head | Laborer | Austria |
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)