JB
James Brennan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kings-County, New York
Our Model Tree links this James Brennan across the 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed), with identified parents William & Alphonse — first a son (b.~1915), then head of a 7-person household.
Age 25
b. ~1915
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Brennan |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Brooklyn Borough |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Occupation | cooper |
| Industry | sugar co |
| Class of Worker | PW |
| Income (1939) | 2000 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Cooper |
| Township / Ward | Brooklyn Borough |
| Est. Birth Year | ~1915 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Anne Brennan | Daughter | — | 10 | ~1930 |
| Mildred Brennan | Daughter | — | 23 | ~1917 |
| Marie Brennan | Daughter | — | 14 | ~1926 |
| Alphonse Brennan | Head | — | 50 | ~1890 |
| James Brennan | Other | — | ~1940 | |
| James Brennan | Son | — | 25 | ~1915 |
| Mary Brennan | Spouse | — | 44 | ~1896 |
Census Appearances
1920
Kings, New …
Son, age 4
Kings, New York · implied b. ~1916 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Kings, New …
Son, age 14
Kings, New York · implied b. ~1916 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Son, age 25
Kings-County, New York · implied b. ~1915 — 7 household members
| Surname | Brennan |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Brooklyn Borough |
| 1935 Residence (County) | Kings |
| Occupation | cooper |
| Industry | sugar co |
| Class of Worker | PW |
| Income (1939) | 2000 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 James Brennan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Brennan (~0.92 confidence) and father Alphonse Brennan (~0.92 confidence) and father Michael Brennan (~0.92 confidence) and mother Catherine Brennan (~0.92 confidence) and mother Mary Brennan (~0.92 confidence) and mother Mary Brennan (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Brennan
b. ~1889
Source father
● Household
· direct · ~0.92
Father
Alphonse Brennan
b. ~1890
Source father
● Household
· direct · ~0.92
Father
Michael Brennan
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Catherine Brennan
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Mary Brennan
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Mary Brennan
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Brennan
Son · 1940 · age 25 · b. ~1915 · New York
★ You are viewing this record
Sibling
Anne Brennan
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Brennan
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Brennan
Sibling · 1940 · age 23
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 — Kings-County, New York
Open full size
1940 US Federal Census — Kings-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02609-00057)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Florence Scott | 37 | Wife | — | New York |
| 2 | Arthur Scott | 17 | Son | No | New York |
| 3 | Dorothy Scott | 16 | Daughter | No | New York |
| 4 | Edith Scott | 14 | Daughter | No | New York |
| 5 | Florence Scott | 13 | Daughter | — | New York |
| 6 | Carrie Holmes | 68 | Mother-in-law | No | New York |
| 7 | Alphonse Brennan | 50 | Head | Weigher | New York |
| 8 | Mary Brennan | 44 | Wife | No | New York |
| 9 | James Brennan THIS PERSON | 25 | Son | Cooper | New York |
| 10 | Mildred Brennan | 23 | Daughter | — | New York |
| 11 | Marie Brennan | 14 | Daughter | No | New York |
| 12 | Anne Brennan | 10 | Daughter | — | New York |
| 13 | James Jr Brennan | 0 | Grandson | — | New York |
| 14 | Charles Schuster | 36 | Head | Knitter | Yugoslavia |
| 15 | Evelyn Schuster | 19 | Wife | Operator | New York |
| 16 | Harry Zaino | 61 | Head | Cement Mason | Italy |
| 17 | Catherine Zaino | 56 | Wife | No | Italy |
| 18 | Lucy Zaino | 22 | Daughter | Inspector | New York |
| 19 | Lena Zaino | 20 | Daughter | Operator | New York |
| 20 | Joseph Schmitt | 45 | Head | All-Around Work | Germany |
| 21 | Clara Schmitt | 35 | Wife | No | Germany |
| 22 | Elaine Schmitt | 15 | Daughter | No | New York |
| 23 | Andrew Raquet | 37 | Head | Helper | New York |
| 24 | Anna Raquet | 28 | Wife | No | New York |
| 25 | Arnold Raquet | 8 | Son | — | New York |
| 26 | Robert Raquet | 4 | Son | — | New York |
| 27 | Louis Sanzone | 65 | Head | Salesman | Italy |
| 28 | Frances Sanzone | 65 | Wife | No | Italy |
| 29 | Lena Sanzone | 32 | Daughter | Operator | New York |
| 30 | Carl Pahrenkrug | 31 | Head | Clerk | Germany |
| 31 | Dora Pahrenkrug | 29 | Wife | No | Germany |
| 32 | Carl Jr. Pahrenkrug | 7 | Son | — | New York |
| 33 | George Pahrenkrug | 4 | Son | — | New York |
| 34 | Michael Migliore | 44 | Head | Bricklayer Help | Italy |
| 35 | Mary Migliore | 35 | Wife | No | Italy |
| 36 | Tiberio Migliore | 14 | Son | No | New York |
| 37 | Rose Marie Migliore | 0 | Daughter | — | New York |
| 38 | William Yenna | 32 | Head | Bricklayer | New York |
| 39 | Anna Yenna | 28 | Wife | No | New York |
| 40 | Vita Yenna | 2 | Daughter | — | New York |
Pedigree Summary
James + 3 siblings
Gen 1 · 6 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)