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Joseph Brennan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Essex-County, New Jersey
Our Model Tree links this Joseph Brennan across the 1910, 1920, 1930 and 1940 US Censuses in Essex-County, New Jersey (XGBoost, ~Confirmed), with identified parents Patrick & Patrick — first a head (b.~1905), then head of a 3-person household.
Age 35
b. ~1905
Male
Head
Born: New Jersey
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, New Jersey |
| Surname | Brennan |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | West Orange Town |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | Real Estate Agent |
| Industry | Real Estate Co. |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 276 |
| Highest Grade | H 8 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Real Estate Agent |
| Township / Ward | West Orange Town |
| Est. Birth Year | ~1905 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| Agnes Brennan | Spouse | — | 28 | ~1912 |
| Joseph Brennan | Head | — | 35 | ~1905 |
| Mary Brennan | Daughter | — | 1 | ~1939 |
Census Appearances
1910
Essex, New …
Son, age 5
Essex, New Jersey · implied b. ~1905 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1920
Essex, New …
Son, age 15
Essex, New Jersey · implied b. ~1905 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New York |
| Occupation | Scholar |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Essex, New …
Son, age 26
Essex, New Jersey · implied b. ~1904 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New York |
| Occupation | Salesman |
| Industry | Dept. Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Essex-County, New …
Head, age 35
Essex-County, New Jersey · implied b. ~1905 — 3 household members
| Surname | Brennan |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | West Orange Town |
| 1935 Residence (County) | Essex |
| Occupation | Real Estate Agent |
| Industry | Real Estate Co. |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 276 |
| Highest Grade | H 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 Joseph Brennan across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Patrick Brennan (~0.92 confidence) and father Patrick Brennan (~0.92 confidence) and mother Mona Brennan (~0.92 confidence) and mother Nora Brennan (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Patrick Brennan
b. ~1875
Source father
● Household
· direct · ~0.92
Father
Patrick Brennan
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Mona Brennan
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Nora Brennan
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Joseph Brennan
Head · 1940 · age 35 · b. ~1905 · 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 — Essex-County, New Jersey
Open full size
1940 US Federal Census — Essex-County, New Jersey
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-02341-00112)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mario Marrone | 40 | Head | Salesman | New Jersey |
| 2 | William Marrone | 35 | Son | Salesman | New Jersey |
| 3 | William Jr. Marrone | 6 | Son | — | New Jersey |
| 4 | Daniel Taylor | 21 | Head | — | New Jersey |
| 5 | Rose Taylor | 68 | Wife | — | New Jersey |
| 6 | Charles Asland | 21 | Lodger | Salesman | New Jersey |
| 7 | Leo Asland | 18 | Lodger | Salesman | New Jersey |
| 8 | Mary Sullivan | 46 | Head | — | New Jersey |
| 9 | Charles Mulvey | 42 | Brother | Machinist | New Jersey |
| 10 | Catherine Willet | 35 | Sister | Telephone Operator | New Jersey |
| 11 | William Willet | 9 | Nephew | — | New Jersey |
| 12 | Michael Mulvey | 32 | Brother | Elevator Operator | New Jersey |
| 13 | Joseph Brennan THIS PERSON | 35 | Head | Real Estate Agent | New Jersey |
| 14 | Agnes Brennan | 28 | Wife | — | New York |
| 15 | Mary Brennan | 1 | Daughter | — | New Jersey |
| 16 | Joseph Murphy | 62 | Head | Watchman | New York |
| 17 | Kathryn Murphy | 62 | Wife | — | New Jersey |
| 18 | Marie Murphy | 32 | Daughter | Clerical Worker | New Jersey |
| 19 | Antonia Monahan | 35 | Head | Clerical Worker | New Jersey |
| 20 | William Mccloud | 21 | Lodger | Office Clerk | New Jersey |
| 21 | Peter Powers | 65 | Head | — | New Jersey |
| 22 | Mary Powers | 64 | Wife | — | New Jersey |
| 23 | Edna Crawford | 37 | Daughter | Clerical Clerk | New Jersey |
| 24 | John F. Crawford | 28 | Son-in-law | Salesman | New Jersey |
| 25 | Edward Powers | 34 | Son | Delivery Clerk | New Jersey |
| 26 | Francis Powers | 28 | Son | Assembler | New Jersey |
| 27 | George C. Powers | 24 | Son | Chemist | New Jersey |
| 28 | John Crawford | 7 | Grandson | — | New Jersey |
| 29 | Mary Monahan | 27 | Lodger | — | Poland |
| 31 | Louis Engel | 39 | Head | Truck Driver | New Jersey |
| 32 | Elizabeth Engel | 38 | Wife | — | New Jersey |
| 33 | Louis Jr. Engel | 13 | Son | — | New Jersey |
| 34 | Norma Engel | 10 | Daughter | — | New Jersey |
| 35 | Eugene Engel | 6 | Son | — | New Jersey |
| 36 | Martha Engel | 5 | Daughter | — | New Jersey |
| 37 | Robert White | 37 | Head | Laborer | New Jersey |
| 38 | Anna White | 35 | Wife | — | New Jersey |
| 39 | Anna Marie White | 10 | Daughter | — | New Jersey |
| 40 | Catherine White | 8 | Daughter | — | New Jersey |
Related Census Records
Pedigree Summary
Joseph
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)