JB
James Brennan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Bronx-County, New York
Our Model Tree links this James Brennan across the 1920, 1930 and 1940 US Censuses in Bronx-County, New York (XGBoost, ~Confirmed) — first a head (b.~1880), then head of a 7-person household.
Age 60
b. ~1880
Male
Head
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Bronx-County, New York |
| Surname | Brennan |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | N.Y. |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Chauffeur |
| Industry | Own Taxi |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | New York |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Chauffeur |
| Township / Ward | New York City |
| Est. Birth Year | ~1880 |
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 |
|---|---|---|---|---|
| Helen Brennan | Daughter | — | 25 | ~1915 |
| Elizabeth Brennan | Daughter | — | 18 | ~1922 |
| James Brennan | Head | — | 60 | ~1880 |
| James Brennan | Son | — | 28 | ~1912 |
| Edward Brennan | Son | — | 21 | ~1919 |
| Kevin Brennan | Son | — | 16 | ~1924 |
| Elizabeth Brennan | Spouse | — | 59 | ~1881 |
Census Appearances
1920
New York, …
Head, age 37
New York, New York · implied b. ~1883 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1906 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Chauffeur |
| Industry | Garage |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1910 |
| Birthplace (normalized) | ireland |
1930
New York, …
Head, age 50
New York, New York · implied b. ~1880 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1906 |
| Age at First Marriage | 26 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Chauffeur |
| Industry | Hospital |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 45 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Bronx-County, New …
Head, age 60
Bronx-County, New York · implied b. ~1880 — 7 household members
| Surname | Brennan |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | N.Y. |
| Naturalization Status | Naturalized |
| Occupation | Chauffeur |
| Industry | Own Taxi |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | New York |
| 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 James 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
James Brennan
Head · 1940 · age 60 · b. ~1880 · New York
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Bronx-County, New York
Open full size
1940 US Federal Census — Bronx-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02498-00576)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Phyllis Brown | 26 | daughter | Secretary | New York |
| 2 | Ursule Brown | 19 | daughter | Secretary | New York |
| 3 | John Neville | 29 | lodger | Policeman | New York |
| 4 | John Harrington | 48 | lodger | Mail Inspector | Vermont |
| 5 | John O. Quinn | 69 | Head | Superintendent | New York |
| 6 | Louise Quinn | 64 | Wife | — | New York |
| 7 | Frank Vottiero | 51 | Head | Salesman | Italy |
| 8 | Jennie Vottiero | 55 | Wife | — | Italy |
| 9 | Philip Vottiero | 22 | Son | Bench Hand | New York |
| 10 | Victor Vottiero | 21 | Son | Bookkeeper | New York |
| 11 | Mario Vottiero | 19 | Son | Butcher | New York |
| 12 | Helen Vottiero | 17 | Daughter | — | New York |
| 13 | Mary Vottiero | 12 | Daughter | — | New York |
| 14 | Anna Della Femina | 41 | Sister in law | Dressmaker | Italy |
| 15 | Gloria Della Femina | 16 | Niece | — | New York |
| 16 | Concetta Della Femina | 11 | Niece | — | New York |
| 17 | George A. Iselhart | 74 | Head | — | Germany |
| 18 | Mary Iselhart | 65 | Wife | — | New York |
| 19 | Frances Iselhart | 32 | Daughter | Cashier | New York |
| 20 | Irene Iselhart | 29 | Daughter | Stenographer | New York |
| 21 | Henry Herd | 52 | Head | — | Germany |
| 22 | Elsa E. Herd | 49 | Wife | Proprietor | Germany |
| 23 | Walter H. Herd | 24 | Son | Carrier | New York |
| 24 | Ella Marie Herd | 18 | Daughter | — | New York |
| 25 | Anna Herd | 49 | Sister | Saleslady | New York |
| 26 | Erminio Sorrentino | 54 | Head | Bookkeeper | Italy |
| 27 | Carmela Sorrentino | 51 | Wife | — | Italy |
| 28 | Louise Sorrentino | 31 | Daughter | Copyist | New York |
| 29 | Anna Sorrentino | 30 | Daughter | — | New York |
| 30 | Emilia Sorrentino | 28 | Daughter | Copyist | New York |
| 31 | Anthony Sorrentino | 26 | Son | Draughtsman | New York |
| 32 | James Brennan THIS PERSON | 60 | Head | Chauffeur | Ireland |
| 33 | Elizabeth Brennan | 59 | Wife | — | Ireland |
| 34 | James Brennan | 28 | Son | Agent | New York |
| 35 | Helen Brennan | 25 | Daughter | Nurse-Jr | New York |
| 36 | Edward Brennan | 21 | Son | Mail Clerk | New York |
| 37 | Elizabeth Brennan | 18 | Daughter | Clerical | New York |
| 38 | Kevin Brennan | 16 | Son | — | New York |
| 39 | Eugene Meitke | 50 | Head | Salesman | New York |
| 40 | Lottie Meitke | 50 | Wife | — | New York |
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)