JC
John Cochran — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this John Cochran across the 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed) — first a son (b.~1930), then head of a 10-person household.
Age 10
b. ~1930
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Cochran |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Jersey City |
| Est. Birth Year | ~1930 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Viola Cochran | Daughter | — | 20 | ~1920 |
| Madeline Cochran | Daughter | — | 9 | ~1931 |
| Muriel Cochran | Daughter | — | 18 | ~1922 |
| Priscilla Cochran | Daughter | — | 15 | ~1925 |
| Treacy Cochran | Daughter | — | 14 | ~1926 |
| Ruth Cochran | Daughter | — | 12 | ~1928 |
| James Cochran | Head | — | 66 | ~1874 |
| David Cochran | Son | — | 8 | ~1932 |
| John Cochran | Son | — | 10 | ~1930 |
| Margaret Cochran | Spouse | — | 41 | ~1899 |
Census Appearances
1930
Hudson, New …
Son, age
Hudson, New Jersey · implied b. ~1930 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cochran |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Hudson-County, New …
Son, age 10
Hudson-County, New Jersey · implied b. ~1930 — 10 household members
| Surname | Cochran |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Highest Grade | No 5 |
| 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 John Cochran across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Cochran
Son · 1940 · age 10 · b. ~1930 · New Jersey
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Sibling
Ruth Cochran
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Muriel Cochran
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Treacy Cochran
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Viola Cochran
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Madeline Cochran
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Cochran
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Priscilla Cochran
Sibling · 1940 · age 15
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 — Hudson-County, New Jersey
Open full size
1940 US Federal Census — Hudson-County, New Jersey
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-02410-00102)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | James Cochran | 66 | Head | Inspector | Mass |
| 42 | Margaret Cochran | 41 | Wife | — | New Jersey |
| 43 | Viola Cochran | 20 | Daughter | Inspector | New Jersey |
| 44 | Muriel Cochran | 18 | Daughter | Operator | New Jersey |
| 45 | Priscilla Cochran | 15 | Daughter | — | New Jersey |
| 46 | Treacy Cochran | 14 | Daughter | — | New Jersey |
| 47 | Ruth Cochran | 12 | Daughter | — | New Jersey |
| 48 | John Cochran THIS PERSON | 10 | Son | — | New Jersey |
| 49 | Madeline Cochran | 9 | Daughter | — | New Jersey |
| 50 | David Cochran | 8 | Son | — | New Jersey |
| 51 | John Baringer | 39 | Head | Transit Handler | New Jersey |
| 52 | Florence Baringer | 49 | Sister | — | New Jersey |
| 53 | Frederick Hull | 51 | Head | Bagger | New York |
| 54 | Jennie Hull | 51 | Wife | — | New York |
| 55 | Frank Hull | 21 | Son | Helper | New Jersey |
| 56 | Robert Hull | 20 | Son | New Worker | New Jersey |
| 57 | Charles Hull | 17 | Son | New Worker | New Jersey |
| 58 | Doris Hull | 11 | Daughter | — | New Jersey |
| 59 | Henrietta Hull | 11 | Daughter | — | New Jersey |
| 61 | Mary Milan | 49 | Head | — | New Jersey |
| 62 | Margaret Milan | 21 | Daughter | Clerk | New Jersey |
| 63 | Elizabeth Milan | 18 | Daughter | — | New Jersey |
| 64 | William Duffy | 40 | Head | Helper | New Jersey |
| 65 | Emma Duffy | 38 | Wife | Telephone Operator | New Jersey |
| 66 | William Duffy | 16 | Son | — | New Jersey |
| 67 | Robert Duffy | 14 | Son | — | New Jersey |
| 68 | Harold Wilt | 27 | Head | Electrician | New Jersey |
| 69 | Josephine Wilt | 26 | Wife | — | New Jersey |
| 70 | Patricia Wilt | 3 | Daughter | — | New Jersey |
| 71 | Carmine Vittoria | 38 | Head | Painter | New Jersey |
| 72 | Clara Vittoria | 31 | Wife | — | New Jersey |
| 73 | Margaret Vittoria | 2 | Daughter | — | New Jersey |
| 74 | William Mcdonough | 32 | Head | Buyer | Chicago |
| 75 | Florence Mcdonough | 31 | Wife | — | New Jersey |
| 76 | William Mcdonough | 10 | Son | — | New Jersey |
| 77 | James Mcdonough | 8 | Son | — | New Jersey |
| 78 | Roseline Mcdonough | 4 | Daughter | — | New Jersey |
| 79 | Arthur Moloughney | 33 | Head | Credit Man | New York |
| 80 | Catherine Moloughney | 30 | Wife | — | New York |
Related Census Records
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)