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Thomas Brennan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this Thomas Brennan across the 1920, 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1876), then head of a 4-person household.
Age 64
b. ~1876
Male
Head
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Brennan |
| Given Name | Thomas J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Phila |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Watchman |
| Industry | Mfg. Company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 840 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Watchman |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1876 |
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 |
|---|---|---|---|---|
| John Mccauley | Other | — | 33 | ~1907 |
| Thomas Brennan | Head | — | 64 | ~1876 |
| Marie Brennan | Spouse | — | 60 | ~1880 |
| Catherine Mccauley | Daughter | — | 32 | ~1908 |
Census Appearances
1920
Philadelphia, Pennsylvania
Head, age 44
Philadelphia, Pennsylvania · implied b. ~1876 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1890 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Stillman |
| Industry | Oil Refinery |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth Country | Ireland |
| Year of Naturalization | 1896 |
| Birthplace (normalized) | ireland |
1930
Philadelphia, Pennsylvania
Head, age 52
Philadelphia, Pennsylvania · implied b. ~1878 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1894 |
| Age at First Marriage | 23 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 22 |
| Radio Set | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Philadelphia-County, Pennsylvania
Head, age 64
Philadelphia-County, Pennsylvania · implied b. ~1876 — 4 household members
| Surname | Brennan |
| Given Name | Thomas J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Phila |
| Naturalization Status | Naturalized |
| Occupation | Watchman |
| Industry | Mfg. Company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 840 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| 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 Thomas 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
Thomas Brennan
Head · 1940 · age 64 · b. ~1876 · Pennsylvania
★ 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 — Philadelphia-County, Pennsylvania
Open full size
1940 US Federal Census — Philadelphia-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03749-00279)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | James E. Lafferty | 18 | Grandson | New Worker | Penna |
| 42 | Thomas J. Brennan THIS PERSON | 64 | Head | Watchman | Ireland |
| 43 | Marie A. Brennan | 60 | Wife | — | Ireland |
| 44 | Catherine M. Mccauley | 32 | Daughter | — | Penna |
| 45 | John A. Mccauley | 33 | Son-in-law | Metal Worker | Penna |
| 46 | Francis A. Scott | 68 | Head | Salesman | Penna |
| 47 | Anna V. Scott | 59 | Wife | — | Penna |
| 48 | James F. Scott | 19 | Son | Messenger | Penna |
| 49 | John L. Scott | 18 | Son | — | Penna |
| 50 | Margaret M. Scott | 16 | Daughter | — | Penna |
| 51 | Matilda Voneiff | 58 | Head | — | Penna |
| 52 | Rebecca Thompson | 61 | Lodger | — | Penna |
| 53 | Margaret Herbert | 52 | Lodger | — | Penna |
| 54 | Samuel J. Gamble | 59 | Head | Clerk | Penna |
| 55 | Eleanor C. Hanley | 63 | Sister-in-law | — | Penna |
| 56 | James J. Turey | 50 | Lodger | Salesman | Penna |
| 57 | George C. Matton | 60 | Head | Salesman | Penna |
| 58 | Elizabeth Matton | 59 | Wife | — | Penna |
| 59 | Catherine T. Matton | 21 | Daughter | Saleswoman | Penna |
| 60 | Eleanor R. Matton | 19 | Daughter | Saleswoman | Penna |
| 61 | Mary E. Matton | 40 | Sister | Candy Maker | Penna |
| 62 | Sidney Rae | 61 | Head | — | Delaware |
| 63 | Clyde Jackson | 70 | Lodger | — | Delaware |
| 64 | Amy Glenn | 65 | Lodger | — | Virginia |
| 65 | John Parker | 32 | Head | Policeman | Penna |
| 66 | Theodosia Parker | 35 | Wife | — | Virginia |
| 67 | John 3Rd Parker | 6 | Son | — | Penna |
| 68 | Martha J. Parker | 4 | Daughter | — | Penna |
| 69 | Amanda B. Drank | 86 | Head | — | Penna |
| 70 | Elizabeth Drank | 50 | Daughter | Clerk | Penna |
| 71 | William Drank | 54 | Son | Machinist | Penna |
| 72 | William M. Patterson | 62 | Head | Upholsterer | Penna |
| 73 | Freda Patterson | 54 | Wife | — | Penna |
| 74 | William C. Patterson | 22 | Son | Clerk | Penna |
| 75 | Gustav F. Ahrens | 46 | Son-in-law | — | Penna |
| 76 | Sarkis Zoobkian | 56 | Head | Clerk | Turkey |
| 77 | Aghavnie Zoobkian | 48 | Wife | — | Turkey |
| 78 | Drost Zoobkian | 19 | Son | — | Penna |
| 79 | Armenouhie Zoobkian | 24 | Daughter | Clerk | Penna |
| 80 | Edward Zoobkian | 15 | Son | — | Penna |
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)