JC
John Corcoran — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this John Corcoran across the 1920, 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1894), then head of a 4-person household.
Age 46
b. ~1894
Male
Head
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Corcoran |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Training Sgt. |
| Industry | State Police |
| Class of Worker | GW |
| Hours Worked | 54 |
| Income (1939) | 4176 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Training Sgt. |
| Township / Ward | Jersey City |
| Est. Birth Year | ~1894 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Margaret Corcoran | Daughter | — | 16 | ~1924 |
| Alice Corcoran | Daughter | — | 14 | ~1926 |
| Alice Corcoran | Spouse | — | 43 | ~1897 |
| John Corcoran | Head | — | 46 | ~1894 |
Census Appearances
1920
Kings, New …
Other, age 24
Kings, New York · implied b. ~1896 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Corcoran |
| Given Name | John |
| Relationship to Head | Step-son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Ireland |
| Year of Immigration | 1913 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Watchman |
| Industry | Factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Year of Naturalization | 1918 |
| Birthplace (normalized) | ireland |
1930
Hudson, New …
Head, age 36
Hudson, New Jersey · implied b. ~1894 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Corcoran |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1914 |
| Age at First Marriage | 27 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Stockman |
| Industry | Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 10,000 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Hudson-County, New …
Head, age 46
Hudson-County, New Jersey · implied b. ~1894 — 4 household members
| Surname | Corcoran |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Naturalization Status | Naturalized |
| Occupation | Training Sgt. |
| Industry | State Police |
| Class of Worker | GW |
| Hours Worked | 54 |
| Income (1939) | 4176 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Corcoran across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
John Corcoran
Head · 1940 · age 46 · b. ~1894 · New Jersey
★ You are viewing this record
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
40 people indexed on this census page (nara:1940:m-t0627-02409-00040)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Neil Garafola | 26 | Son | Clerk | New Jersey |
| 42 | Ralph Garafola | 22 | Son | Chauffeur | New Jersey |
| 43 | Almond Garafola | 20 | Son | Y.M.C.A. | New Jersey |
| 44 | Albert Garafola | 16 | Son | — | New Jersey |
| 45 | William John | 25 | Lodger | Beautician | New York |
| 46 | Elsie G. John | 27 | Wife | — | New York |
| 47 | George S. Berger | 63 | Head | Musician | New York |
| 48 | Katherine E. Berger | 63 | Wife | — | Massachusetts |
| 49 | Ruth Mcallister | 64 | Sister | — | Massachusetts |
| 50 | William Forrester | 43 | Head | Shipfitter | New Jersey |
| 51 | Grace H. Forrester | 38 | Wife | — | New Jersey |
| 52 | William Forrester | 20 | Son | Map Clerk | New Jersey |
| 53 | Donald Forrester | 16 | Son | — | New Jersey |
| 54 | Joseph J. Hanlon | 16 | Step-son | Delivery Boy | New Jersey |
| 55 | John J. Corcoran THIS PERSON | 46 | Head | Training Sgt. | Ireland |
| 56 | Alice E. Corcoran | 43 | Wife | — | Ireland |
| 57 | Margaret V. Corcoran | 16 | Daughter | — | New Jersey |
| 58 | Alice P. Corcoran | 14 | Daughter | — | New Jersey |
| 59 | George A. Haas | 53 | Head | Checker | New Jersey |
| 60 | Augusta A. Haas | 50 | Wife | — | New York |
| 61 | Edward H. Haas | 20 | Son | Draftsman | New Jersey |
| 62 | James Fink | 64 | Head | — | Scotland |
| 63 | Charlotte L. Fink | 63 | Wife | — | Ireland |
| 64 | James J. Fink | 28 | Son | Office Clerk | New Jersey |
| 65 | Thomas D. Fink | 30 | Son | Clerk | Florida |
| 66 | Christina K. Fink | 28 | Daughter | Operator | New Jersey |
| 67 | Helen A. Fink | 26 | Daughter | Secretary | New Jersey |
| 68 | Alfred Mcintyre | 27 | Head | Laborer | New Jersey |
| 69 | Estelle Mcintyre | 25 | Wife | Bookkeeper | New Jersey |
| 70 | William C. Kiefer | 60 | Father-in-law | — | New Jersey |
| 71 | George Flammer | 51 | Head | Brakeman | Germany |
| 72 | Grace E. Flammer | 52 | Wife | — | New York |
| 73 | Virginia Flammer | 24 | Daughter | Registered Nurse | New Jersey |
| 74 | Muriel Flammer | 19 | Daughter | Typist | New Jersey |
| 75 | Rudolph Roller | 60 | Head | Patrolman | New Jersey |
| 76 | Agnes Roller | 56 | Wife | — | New York |
| 77 | Ruth M. Roller | 25 | Daughter | House Worker | New Jersey |
| 78 | Anne M. Byrne | 49 | Head | Agent | New Jersey |
| 79 | Margaret M. Byrne | 46 | Sister | — | New Jersey |
| 80 | John J. Schwartz | 56 | Head | Clerk | Germany |
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)