JB
Joseph Brennan — 1930 US Census Record
Model Tree available1930 United States Federal Census · Lackawanna, Pennsylvania
Our Model Tree links this Joseph Brennan across the 1910, 1920 and 1930 US Censuses in Lackawanna, Pennsylvania (XGBoost, ~Confirmed), with identified parents Michael & Michael — first a son (b.~1900), then head of a 12-person household.
Age 30
b. ~1900
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Lackawanna, Pennsylvania |
| Surname | Brennan |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Salesman |
| Industry | Book Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Salesman |
| Township / Ward | Carbondale |
| Est. Birth Year | ~1900 |
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.
12 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| Joseph Brennan | Son | — | 30 | ~1900 |
| Michael Brennan | Head | — | 60 | ~1870 |
| Thomas Brennan | Son | — | 16 | ~1914 |
| Ruth Brennan | Daughter | — | 9 | ~1921 |
| Sadie Barbright | Daughter | — | 33 | ~1897 |
| Garfield Barbright | Other | — | 35 | ~1895 |
| Catherine Brennan | Spouse | — | 58 | ~1872 |
| Rita Brennan | Daughter | — | 7 | ~1923 |
| Evelyn Barbright | Daughter | — | 8 | ~1922 |
| Gertrude Brennan | Daughter | — | 26 | ~1904 |
| Joseph Barbright | Son | — | 5 | ~1925 |
| Ronald Brennan | Son | — | 26 | ~1904 |
Census Appearances
1910
Lackawanna, Pennsylvania
Son, age 11
Lackawanna, Pennsylvania · implied b. ~1899 — 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 | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Lackawanna, Pennsylvania
Son, age 20
Lackawanna, Pennsylvania · implied b. ~1900 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Pennsylvania |
| Occupation | Clerk |
| Industry | Pool room |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Lackawanna, Pennsylvania
Son, age 30
Lackawanna, Pennsylvania · implied b. ~1900 — 12 household members
| Surname | Brennan |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Pennsylvania |
| Occupation | Salesman |
| Industry | Book Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 3 US Census years (1910, 1920 and 1930) in Lackawanna, Pennsylvania, using XGBoost record linkage. Identified parents: father Michael Brennan (~0.92 confidence) and father Michael Brennan (~0.92 confidence) and father Michael Brennan (~0.92 confidence) and mother Catherine Brennan (~0.92 confidence) and mother Kate Brennan (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Michael Brennan
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Michael Brennan
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Michael Brennan
b. ~1863
Source father
● Household
· direct · ~0.92
Mother
Catherine Brennan
b. ~1872
Source mother
● Household
· direct · ~0.92
Mother
Kate Brennan
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Joseph Brennan
Son · 1930 · age 30 · b. ~1900 · Pennsylvania
★ You are viewing this record
Sibling
Evelyn Barbright
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Brennan
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ronald Brennan
Sibling · 1930 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Brennan
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Barbright
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gertrude Brennan
Sibling · 1930 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sadie Barbright
Sibling · 1930 · age 33
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Brennan
Sibling · 1930 · age 16
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
1930 US Federal Census — Lackawanna, Pennsylvania
Open full size
1930 US Federal Census — Lackawanna, Pennsylvania
Page Contents
48 people indexed on this census page (ia:1930:fifteenthcensus00reel2048:0843)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Thomas E Hamilton | 52 | Head | Orderly | Ohio |
| 52 | Catherine Hamilton | 47 | Wife | — | Pennsylvania |
| 53 | Elizabeth Hamilton | 18 | Daughter | Nurse | Pennsylvania |
| 54 | Edward Hamilton | 18 | Son | — | Pennsylvania |
| 55 | Irene Hamilton | 10 | Daughter | — | Pennsylvania |
| 56 | Michael J Brennan | 60 | Head | Laborer | Ireland |
| 57 | Catherine Brennan | 58 | Wife | — | Pennsylvania |
| 58 | Gertrude Mary Brennan | 26 | Daughter | — | Pennsylvania |
| 59 | Ruth Brennan | 9 | Daughter | — | Pennsylvania |
| 60 | Rita Brennan | 7 | Daughter | — | Pennsylvania |
| 61 | Garfield Barbright | 35 | Son-in-law | Carpenter | Pennsylvania |
| 62 | Sadie Barbright | 33 | Daughter | — | Pennsylvania |
| 63 | Evelyn Barbright | 8 | Daughter | — | Pennsylvania |
| 64 | Joseph Barbright | 5 | Son | — | Pennsylvania |
| 65 | Joseph Brennan THIS PERSON | 30 | Son | Salesman | Pennsylvania |
| 66 | Ronald Brennan | 26 | Son | Messenger | Pennsylvania |
| 67 | Thomas Brennan | 16 | Son | — | Pennsylvania |
| 68 | William J Clark | 55 | Head | Blacksmith | Pennsylvania |
| 69 | Walter Clark | 24 | Son | Clerk | Pennsylvania |
| 70 | Paul Clark | 22 | Son | Clerk | Pennsylvania |
| 71 | Robert Clark | 9 | Son | — | Pennsylvania |
| 72 | James A Mccann | 35 | Son-in-law | Salesman | Pennsylvania |
| 73 | Emily Mccann | 26 | Daughter | — | Pennsylvania |
| 74 | William Mccann | 2 | Son | — | Pennsylvania |
| 75 | John Cornish | 66 | Head | Laborer | Pennsylvania |
| 76 | Nellie Cornish | 61 | Wife | — | Wales |
| 77 | Maurice Donahue | 28 | Head | Dentist | Pennsylvania |
| 78 | Gloria Donahue | 25 | Wife | — | Pennsylvania |
| 79 | Clara Donahue | 3 | Daughter | — | Pennsylvania |
| 80 | Maurice Jr Donahue | 2 | Son | — | Pennsylvania |
| 81 | Joseph Ward | 54 | Head | Laborer | England |
| 82 | Annie Ward | 50 | Wife | — | Pennsylvania |
| 83 | Thomas Ward | 22 | Son | Steward | Pennsylvania |
| 84 | Margaret Ward | 21 | Daughter | — | Pennsylvania |
| 85 | Elizabeth Clara | 20 | Daughter | — | Pennsylvania |
| 86 | Patrick Clara | 24 | Son-in-law | Salesman | Italy |
| 87 | Anna Clara | 3 | Daughter | — | Pennsylvania |
| 88 | Jane Clara | 1 | Daughter | — | Pennsylvania |
| 89 | Charles Wilson | 33 | Head | Laborer | Pennsylvania |
| 90 | Eldreda Wilson | 32 | Wife | — | Pennsylvania |
| 91 | Floyd Wilson | 3 | Son | — | Pennsylvania |
| 92 | Hilda Wilson | 1 | Daughter | — | Pennsylvania |
| 93 | Joseph Cummings | 30 | Head | Laborer | Pennsylvania |
| 94 | Isabella Cummings | 28 | Wife | — | Pennsylvania |
| 95 | Robert Cummings | 7 | Son | — | Pennsylvania |
| 96 | Donald Cummings | 1 | Son | — | Pennsylvania |
| 97 | Walter Cummings | 0 | Son | — | Pennsylvania |
| 98 | Amos Gardner | 64 | Mother-in-law | Housekeeper | New York |
Pedigree Summary
Joseph + 8 siblings
Gen 1 · 5 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)