TB
Thomas Brennan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kings-County, New York
Our Model Tree links this Thomas Brennan across the 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed), with identified parents Thomas & Margaret — first a head (b.~1890), then head of a 4-person household.
Age 50
b. ~1890
Male
Head
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Brennan |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Occupation | Cooper |
| Industry | Steamship Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2000 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Cooper |
| Township / Ward | New York City |
| Est. Birth Year | ~1890 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Thomas Brennan | Head | — | 50 | ~1890 |
| Mary Brennan | Daughter | — | 22 | ~1918 |
| Margaret Brennan | Spouse | — | 60 | ~1880 |
| William Brennan | Son | — | 21 | ~1919 |
Census Appearances
1920
Kings, New …
Son, age 30
Kings, New York · implied b. ~1890 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Kings, New …
Head, age 41
Kings, New York · implied b. ~1889 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | New York |
| Age at First Marriage | 20 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | New Jersey |
| Occupation | Custodian |
| Industry | Contractor |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 15000 |
| Radio Set | R |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Head, age 50
Kings-County, New York · implied b. ~1890 — 4 household members
| Surname | Brennan |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Occupation | Cooper |
| Industry | Steamship Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2000 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| 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 Thomas Brennan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Brennan (~0.92 confidence) and mother Margaret Brennan (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Brennan
b. ~1863
Source father
● Household
· direct · ~0.92
Mother
Margaret Brennan
b. ~1864
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Brennan
Head · 1940 · age 50 · b. ~1890 · New York
★ 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 — 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-t0627-02581-00614)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joan E Keane | 3 | daughter | — | New York |
| 2 | Henry E Duckham | 44 | Head | Brokerage Clerk | New York |
| 3 | Ada E Duckham | 34 | Wife | Abstracter | New York |
| 4 | Henry E Duckham | 7 | Son | — | New York |
| 5 | Anna Karan | 35 | Head | Dressmaker | Lebanon |
| 6 | Minerva Karan | 64 | Sister | — | Lebanon |
| 7 | John J Mitchell | 41 | Head | Accountant | New York |
| 8 | Edna M Mitchell | 36 | Wife | — | New York |
| 9 | James Mahoney | 41 | Head | Motorman | Irish Free State |
| 10 | Mary Mahoney | 40 | Wife | — | Irish Free State |
| 11 | Timothy Mahoney | 17 | Son | New Worker | Irish Free State |
| 12 | James Mahoney | 15 | Son | — | New York |
| 13 | Catherine Mahoney | 7 | daughter | — | New York |
| 14 | Helen Mahoney | 4 | daughter | — | New York |
| 15 | Thomas Brennan THIS PERSON | 50 | Head | Cooper | New York |
| 16 | Margaret Brennan | 60 | Wife | — | Irish Free State |
| 17 | Mary Brennan | 22 | daughter | Bookkeeper | New York |
| 18 | William Brennan | 21 | Son | Salesman | New York |
| 19 | Patrick J Flemen | 47 | Head | Police Sergeant | Irish Free State |
| 20 | Helen M Flemen | 47 | Wife | — | New York |
| 21 | Alice Flemen | 17 | daughter | — | New York |
| 22 | Helen Flemen | 16 | daughter | — | New York |
| 23 | Mary Flemen | 12 | daughter | — | New York |
| 24 | Edward Holmes | 31 | Head | Stationary Fireman | New York |
| 25 | Helen Holmes | 28 | Wife | — | New York |
| 26 | Edward Holmes | 7 | Son | — | New York |
| 27 | Lawrence Holmes | 2 | Son | — | New York |
| 28 | Wilhelmina Fadelman | 54 | Mother in Law | — | New Jersey |
| 29 | Lawrence Fadelman | 26 | Brother in Law | Stock Clerk | New York |
| 30 | Katherine Fadelman | 24 | Sister in Law | Engraving Clerk | New York |
| 31 | Margaret Fadelman | 21 | Sister in Law | — | New York |
| 32 | Anthony Ferreira | 44 | Head | Electrical Insp. | British Guiana |
| 33 | Margaret Ferreira | 40 | Wife | — | Irish Free State |
| 34 | Raymond Ferreira | 14 | Son | — | New York |
| 35 | Frances Ferreira | 12 | daughter | — | New York |
| 36 | Emanuel Soares | 35 | Cousin | Baker | British Guiana |
| 37 | Charles Timoney | 32 | Head | Brokerage Clerk | Irish Free State |
| 38 | Hugh Timoney | 27 | Brother | Ledger Clerk | Irish Free State |
| 39 | Robert Timoney | 28 | Brother | Bookkeeping | New York |
| 40 | Marie Timoney | 21 | Sister | Stenographer | New York |
Pedigree Summary
Thomas
Gen 1 · 2 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)