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Joseph Brennan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this Joseph Brennan across the 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1930), then head of a 7-person household.
Age 10
b. ~1930
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Brennan |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Phila |
| 1935 Residence (County) | Phila |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Phila |
| Est. Birth Year | ~1930 |
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 Joseph | Age | Birth yr |
|---|---|---|---|---|
| Marguerite Brennan | Daughter | — | 19 | ~1921 |
| Catherine Brennan | Daughter | — | 16 | ~1924 |
| Joseph Brennan | Son | — | 10 | ~1930 |
| Anne Brennan | Daughter | — | 20 | ~1920 |
| Joseph Brennan | Head | — | 45 | ~1895 |
| Anne Brennan | Spouse | — | 42 | ~1898 |
| James Brennan | Son | — | 22 | ~1918 |
Census Appearances
1930
Philadelphia, Pennsylvania
Son, age
Philadelphia, Pennsylvania · implied b. ~1930 — 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 | 0 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Philadelphia-County, Pennsylvania
Son, age 10
Philadelphia-County, Pennsylvania · implied b. ~1930 — 7 household members
| Surname | Brennan |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Phila |
| 1935 Residence (County) | Phila |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Joseph Brennan
Son · 1940 · age 10 · b. ~1930 · Pennsylvania
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Sibling
Catherine Brennan
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Brennan
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marguerite Brennan
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anne Brennan
Sibling · 1940 · age 20
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 — 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-t0627-03694-01069)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Margaret Mooney | 36 | Wife | — | Ireland |
| 42 | John Mooney | 14 | Son | — | Pennsylvania |
| 43 | Anne May Mooney | 12 | Daughter | — | Pennsylvania |
| 44 | James Mooney | 11 | Son | — | Pennsylvania |
| 45 | Daniel Mooney | 4 | Son | — | Pennsylvania |
| 46 | Joseph Brennan | 45 | Head | Driver | Pennsylvania |
| 47 | Anne Brennan | 42 | Wife | — | Pennsylvania |
| 48 | James Brennan | 22 | Son | Driver | Pennsylvania |
| 49 | Anne Brennan | 20 | Daughter | Cigar | Pennsylvania |
| 50 | Marguerite Brennan | 19 | Daughter | Typist | Pennsylvania |
| 51 | Catherine Brennan | 16 | Daughter | — | Pennsylvania |
| 52 | Joseph Brennan THIS PERSON | 10 | Son | — | Pennsylvania |
| 53 | Thomas Ryan | 42 | Head | Automobile | Pennsylvania |
| 54 | Margaret Ryan | 39 | Wife | — | Pennsylvania |
| 55 | Helen Ryan | 16 | Daughter | — | Pennsylvania |
| 56 | Thomas Ryan | 14 | Son | — | Pennsylvania |
| 57 | Mary Voland | 60 | Head | — | Ireland |
| 58 | Joseph Kirby | 55 | Lodger | Iron | Pennsylvania |
| 59 | Rose Curtin | 46 | Lodger | — | Ireland |
| 60 | John Turley | 50 | Lodger | Laborer | Pennsylvania |
| 61 | John Murphy | 55 | Lodger | Laborer | Pennsylvania |
| 62 | Maud Azzi | 51 | Head | — | New Jersey |
| 63 | Shirley Azzi | 20 | Daughter | — | New York |
| 64 | George Barnes | 59 | Head | Metal Man | Pennsylvania |
| 65 | Hannah Barnes | 67 | Wife | — | Pennsylvania |
| 66 | Elizabeth Barnes | 29 | Daughter | Office | Pennsylvania |
| 67 | John Williams | 43 | Son | Chauffer | Pennsylvania |
| 68 | Albert Barnes | 21 | Son | Laborer | Pennsylvania |
| 69 | Margaret Barnes | 18 | Daughter | Nursing | Pennsylvania |
| 70 | Mary Barnes | 15 | Daughter | — | Pennsylvania |
| 71 | Mary Burke | 54 | Head | — | Pennsylvania |
| 72 | Annie Burke | 61 | Sister | — | Ireland |
| 73 | Thomas Muldoon | 26 | Head | Laborer | Pennsylvania |
| 74 | Marie Muldoon | 27 | Wife | — | Pennsylvania |
| 75 | Joan Muldoon | 7 | Daughter | — | Pennsylvania |
| 76 | Margaret Muldoon | 5 | Daughter | — | Pennsylvania |
| 77 | John Muldoon | 2 | Son | — | Pennsylvania |
| 78 | Kenneth Kullman | 30 | Head | — | Iowa |
| 79 | Maxine Kullman | 23 | Wife | Beauty Shop | Iowa |
| 80 | Steven Kullman | 1 | Son | — | Iowa |
Related Census Records
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)