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John Mckenna — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this John Mckenna across the 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 8-person household.
Age 13
b. ~1927
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | McKenna |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Jersey City |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Loretta Mckenna | Daughter | — | 24 | ~1916 |
| Rita Mckenna | Daughter | — | 17 | ~1923 |
| Veronica Mckenna | Daughter | — | 15 | ~1925 |
| Eleanor Mckenna | Daughter | — | 20 | ~1920 |
| Thomas Mckenna | Head | — | 55 | ~1885 |
| John Mckenna | Son | — | 13 | ~1927 |
| Thomas Mckenna | Son | — | 25 | ~1915 |
| Mary Mckenna | Spouse | — | 48 | ~1892 |
Census Appearances
1930
Hudson, New …
Son, age 3
Hudson, New Jersey · implied b. ~1927 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McKenna |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Hudson-County, New …
Son, age 13
Hudson-County, New Jersey · implied b. ~1927 — 8 household members
| Surname | McKenna |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Highest Grade | No 8 |
| 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 Mckenna across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Mckenna
Son · 1940 · age 13 · b. ~1927 · New Jersey
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Sibling
Rita Mckenna
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Mckenna
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Loretta Mckenna
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Mckenna
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Veronica Mckenna
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
40 people indexed on this census page (nara:1940:m-t0627-02404-00564)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | James Chapman | 49 | Head | Fireman | New Jersey |
| 42 | Mary Chapman | 47 | Wife | — | New Jersey |
| 43 | Frances Chapman | 22 | Daughter | School Teacher | New Jersey |
| 44 | James Jr. Chapman | 20 | Son | Runner | New Jersey |
| 45 | Joseph Mcglade | 44 | Cousin | Clerk | New Jersey |
| 46 | Patrick Kelly | 58 | Head | Stationary Engineer | New Jersey |
| 47 | Elizabeth Kelly | 51 | Wife | — | Penn. |
| 48 | James Kelly | 21 | Son | Fireman | New Jersey |
| 49 | Florence Kelly | 17 | Daughter | Mangle Girl | New Jersey |
| 50 | Agnes Kelly | 16 | Daughter | — | New Jersey |
| 51 | William Kelly | 13 | Son | — | New Jersey |
| 52 | John Keeney | 37 | Head | Janitor | Ireland |
| 53 | Katherine Keeney | 40 | Wife | — | Ireland |
| 54 | Mary Keeney | 8 | Daughter | — | New Jersey |
| 55 | John Keeney | 6 | Son | — | New Jersey |
| 56 | Kathleen Keeney | 4 | Daughter | — | New Jersey |
| 57 | Margaret Keeney | 2 | Daughter | — | New Jersey |
| 58 | Joseph Keeney | 0 | Son | — | New Jersey |
| 59 | Thomas Mckenna | 55 | Head | Motorman | Ireland |
| 60 | Mary Mckenna | 48 | Wife | — | Ireland |
| 61 | Thomas Jr. Mckenna | 25 | Son | Watchman | New Jersey |
| 62 | Loretta Mckenna | 24 | Daughter | Stenographer | New Jersey |
| 63 | Eleanor Mckenna | 20 | Daughter | — | New Jersey |
| 64 | Rita Mckenna | 17 | Daughter | — | New Jersey |
| 65 | Veronica Mckenna | 15 | Daughter | — | New Jersey |
| 66 | John Mckenna THIS PERSON | 13 | Son | — | New Jersey |
| 67 | Herbert Wadelich | 29 | Head | Tin Smith | New Jersey |
| 68 | Catherine Wadelich | 26 | Wife | — | New Jersey |
| 69 | Herbert Wadelich | 4 | Son | — | New Jersey |
| 70 | Eugene Wadelich | 0 | Son | — | New Jersey |
| 71 | Helen Kirby | 52 | Aunt | — | New Jersey |
| 72 | Dennis Lacey | 48 | Head | Plumber | New Jersey |
| 73 | Elizabeth Lacey | 48 | Wife | — | New Jersey |
| 74 | Marie Lacey | 22 | Daughter | Clerk | New Jersey |
| 75 | Betty Lacey | 20 | Daughter | Stenographer | New Jersey |
| 76 | Margaret Lacey | 15 | Daughter | — | New Jersey |
| 77 | John Lacey | 14 | Son | — | New Jersey |
| 78 | Daniel Leary | 80 | Father-in-law | — | Ireland |
| 79 | John Leary | 53 | Brother-in-law | Foreman | New Jersey |
| 80 | Frank Salvito | 30 | Head | Truck Driver | New Jersey |
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)