WB
William Brennan — 1930 US Census Record
Model Tree available1930 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this William Brennan across the 1910, 1920 and 1930 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed), with identified parents Thomas & Catherine — first a head (b.~1899), then head of a 6-person household.
Age 31
b. ~1899
Male
Head
Born: Pennsylvania
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Philadelphia, Pennsylvania |
| Surname | Brennan |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 25 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Helper |
| Industry | Machine Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 35 |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Helper |
| Township / Ward | Philadelphia Co |
| Est. Birth Year | ~1899 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Theresa Brennan | Spouse | — | 31 | ~1899 |
| William Brennan | Head | — | 31 | ~1899 |
| William Brennan | Son | — | 1 | ~1929 |
| Theresa Brennan | Daughter | — | ~1930 | |
| Beatrice Brennan | Daughter | — | 10 | ~1920 |
| Betty Brennan | Daughter | — | 4 | ~1926 |
Census Appearances
1910
Philadelphia, Pennsylvania
Son, age 9
Philadelphia, Pennsylvania · implied b. ~1901 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | William C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Philadelphia, Pennsylvania
Son, age 20
Philadelphia, Pennsylvania · implied b. ~1900 — 16 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | Willie |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Laborer |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Philadelphia, Pennsylvania
Head, age 31
Philadelphia, Pennsylvania · implied b. ~1899 — 6 household members
| Surname | Brennan |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 25 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Helper |
| Industry | Machine Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 35 |
| Veteran | No |
| 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 William Brennan across 3 US Census years (1910, 1920 and 1930) in Philadelphia, Pennsylvania, using XGBoost record linkage. Identified parents: father Thomas Brennan (~0.92 confidence) and mother Catherine Brennan (~0.92 confidence) and father Daniel Brennan (~0.92 confidence) and mother Mae Brennan (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Brennan
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Catherine Brennan
b. ~1874
Source mother
● Household
· direct · ~0.92
Father
Daniel Brennan
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Mae Brennan
b. ~1875
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Brennan
Head · 1930 · age 31 · b. ~1899 · Pennsylvania
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Philadelphia, Pennsylvania
Open full size
1930 US Federal Census — Philadelphia, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2143:0022)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Mary Fraser | 73 | Wife-H | None | Ireland |
| 52 | Maud Fraser | 35 | Daughter | Helper | Pennsylvania |
| 53 | William Brennan THIS PERSON | 31 | Head | Helper | Pennsylvania |
| 54 | Theresa Brennan | 31 | Wife | None | Pennsylvania |
| 55 | Beatrice Brennan | 10 | Daughter | None | Pennsylvania |
| 56 | Betty Brennan | 4 | Daughter | None | Pennsylvania |
| 57 | William Brennan | 1 | Son | None | Pennsylvania |
| 58 | Theresa Brennan | 0 | Daughter | None | Pennsylvania |
| 59 | John Brennan | 38 | Head | Huckster | Pennsylvania |
| 60 | Estelle Brennan | 26 | Wife | None | Pennsylvania |
| 61 | Charles S Clark | 49 | Head | Labor | Pennsylvania |
| 62 | Elizabeth Clark | 49 | Wife | Operator | Pennsylvania |
| 63 | Edwin Clark | 21 | Son | Clerk | Pennsylvania |
| 64 | Gertrude Clark | 19 | Daughter | Saleslady | Pennsylvania |
| 65 | Elizabeth Clark | 16 | Daughter | Box Maker | Pennsylvania |
| 66 | Edith Clark | 9 | Daughter | None | Pennsylvania |
| 67 | Mary Mcnamara | 55 | Head | Housekeeper | Pennsylvania |
| 68 | Elizabeth Mcnamara | 50 | Sister | Factory | Pennsylvania |
| 69 | Margaret Mcnamara | 48 | Sister | Paper Box | Pennsylvania |
| 70 | Mary Frost | 55 | Boarder | Paper Box | Pennsylvania |
| 71 | Frank Ward | 47 | Head | Porter | Ireland |
| 72 | Grace Ward | 50 | Wife | None | Ireland |
| 73 | Cornelius Ward | 22 | Son | Cook | Scotland |
| 74 | Francis Ward | 18 | Son | Clerk | Scotland |
| 75 | Mary Ward | 20 | Daughter | Cashier | Scotland |
| 76 | — | None | — | — | — |
| 77 | Joseph Spina | 40 | Head | Mechanic | Italy |
| 78 | Rosina Spina | 44 | Wife | None | Italy |
| 79 | Stella Spina | 11 | Daughter | None | Pennsylvania |
| 80 | Joseph Spina | 31 | Boarder | Shoemaker | Italy |
| 81 | Gregorio Chattie | 33 | Head | Presser | Italy |
| 82 | Josephine Chattie | 30 | Wife | None | Italy |
| 83 | Carmen Chattie | 2 | Son | None | Pennsylvania |
| 84 | Dominick Chirico | 50 | Head | Proprietor | Italy |
| 85 | Domenica Chirico | 35 | Wife | None | Italy |
| 86 | Paul Chirico | 27 | Son | Clerk | Italy |
| 87 | Joseph Chirico | 16 | Son | None | Pennsylvania |
| 88 | Nunzio Chirico | 14 | Son | None | Pennsylvania |
| 89 | Frank Chirico | 12 | Son | None | Pennsylvania |
| 90 | Rosie Chirico | 11 | Daughter | None | Pennsylvania |
| 91 | Peter Magrino | 60 | Head | Proprietor | Italy |
| 92 | Camilla Magrino | 59 | Wife | None | Italy |
| 93 | Armando Magrino | 24 | Son | None | Pennsylvania |
| 94 | Elaine Magrino | 17 | Daughter | None | Pennsylvania |
| 95 | Louis Bove | 38 | Head | Blacksmith | Italy |
| 96 | Mary Bove | 32 | Wife | None | Italy |
| 97 | Arnold Bove | 9 | Son | None | Pennsylvania |
| 98 | Raymond Bove | 7 | Son | None | Pennsylvania |
| 99 | Joseph Bove | 17 | Step-son | Threader | Italy |
| 100 | Arthur Iubbell | 24 | Head | Engineer | Pennsylvania |
Pedigree Summary
William
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)