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John Brennan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this John Brennan across the 1920, 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1891), then head of a 5-person household.
Age 49
b. ~1891
Male
Head
Born: Rhode Island
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Brennan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Rhode Island |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Additional Details | |
| Industry | 0 |
| Highest Grade | 7 |
| 1935 Residence | Same Place |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
| Township / Ward | Jersey City |
| Est. Birth Year | ~1891 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Brennan | Head | — | 49 | ~1891 |
| John Brennan | Son | — | 24 | ~1916 |
| H Brennan | Son | — | 21 | ~1919 |
| Gerard Brennan | Son | — | 20 | ~1920 |
| Arretta Brennan | Spouse | — | 44 | ~1896 |
Census Appearances
1920
Hudson, New …
Head, age 33
Hudson, New Jersey · implied b. ~1887 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Rhode Island |
| Father's Birthplace | Rhode Island |
| Mother's Birthplace | Ireland |
| Occupation | Machinist |
| Industry | Penn R.R. |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
1930
Hudson, New …
Head, age 43
Hudson, New Jersey · implied b. ~1887 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Rhode Island |
| Age at First Marriage | 21 |
| Father's Birthplace | Rhode Island |
| Mother's Birthplace | New York |
| Occupation | Superintendent |
| Industry | Apartment |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 50.00 |
| Radio Set | R |
| Veteran | No |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
1940
Hudson-County, New …
Head, age 49
Hudson-County, New Jersey · implied b. ~1891 — 5 household members
| Surname | Brennan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Rhode Island |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Industry | 0 |
| Highest Grade | 7 |
| 1935 Residence | Same Place |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
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 Brennan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Brennan
Head · 1940 · age 49 · b. ~1891 · 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-t0627-02409-00075)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Francis Kenny | 25 | Head | Clerk | New Jersey |
| 2 | Helen Kenny | 22 | Wife | — | New Jersey |
| 3 | George Jr. Kenny | 20 | Son | File Clerk | New Jersey |
| 4 | Elizabeth Kenny | 18 | Daughter | — | New Jersey |
| 5 | Lucille Kenny | 13 | Daughter | — | New Jersey |
| 6 | Anna Passante | 59 | Head | — | Italy |
| 7 | Genevieve Passante | 38 | Daughter | Laborer | Italy |
| 8 | Gerard Passante | 36 | Son | Machinist | New Jersey |
| 9 | Philomena Passante | 24 | Daughter-in-law | — | New Jersey |
| 10 | John Passante | 24 | Son | Printer | New Jersey |
| 11 | William Fleming | 46 | Head | — | New Jersey |
| 12 | Emma Fleming | 37 | Wife | — | New Jersey |
| 13 | Marie Fleming | 17 | Daughter | — | New Jersey |
| 14 | William Parkhill | 32 | Cousin | Maintenance Man | New Jersey |
| 15 | William Hendress | 56 | Head | Brick Layer | New Jersey |
| 16 | Marie Hendress | 56 | Wife | — | Germany |
| 17 | Fred Hendress | 24 | Son | Carrier Clerk | New Jersey |
| 18 | Edmund Hendress | 22 | Son | Sales Manager | New Jersey |
| 19 | Abram Wilkins | 55 | Head | Steam Engineer | New Jersey |
| 20 | Mary Wilkins | 55 | Wife | — | New Jersey |
| 21 | Florence Wilkins | 31 | Daughter | Sales Girl | New Jersey |
| 22 | Edna Wilkins | 29 | Daughter | — | New Jersey |
| 23 | Evelyn Wilkins | 25 | Daughter | Typist | New Jersey |
| 24 | Gladys Wilkins | 14 | Daughter | New Worker | New Jersey |
| 25 | Alice Holden | 73 | Head | — | Eire |
| 26 | Catherine Holden | 47 | Daughter | Egg Candler | New Jersey |
| 27 | Mary Holden | 41 | Daughter | — | New Jersey |
| 28 | John Holden | 38 | Son | Truck Driver | New Jersey |
| 29 | Alice Holden | 34 | Daughter | Sales Girl | New Jersey |
| 30 | John Brennan THIS PERSON | 49 | Head | — | Rhode Island |
| 31 | Arretta Brennan | 44 | Wife | — | New Jersey |
| 32 | John Jr. Brennan | 24 | Son | Longshoreman | New Jersey |
| 33 | H. Vincent Brennan | 21 | Son | Clerk | New Jersey |
| 34 | Gerard Brennan | 20 | Son | New Worker | New Jersey |
| 35 | Harry Sterner | 56 | Head | Conductor | New Jersey |
| 36 | Grace Sterner | 53 | Wife | — | New Jersey |
| 37 | Bertha Sterner | 28 | Daughter | Stenographer | New Jersey |
| 38 | Alice Hanley | 66 | Head | — | New Jersey |
| 39 | Bernard Hanley | 64 | Brother | — | New Jersey |
| 40 | Harry Shine | 42 | Lodger | Painter | New Jersey |
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)