JB
Joseph Brennan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lackawanna-County, Pennsylvania
Our Model Tree links this Joseph Brennan across the 1920, 1930 and 1940 US Censuses in Lackawanna-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Martin & Alice — first a head (b.~1905), then head of a 3-person household.
Age 35
b. ~1905
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lackawanna-County, Pennsylvania |
| Surname | BRENNAN |
| Given Name | JOSEPH |
| Relationship to Head | HEAD |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | CARBONDALE |
| 1935 Residence (County) | LACKAWANNA |
| Additional Details | |
| Occupation | LABORER |
| Industry | COAL MINES |
| Class of Worker | PW |
| Hours Worked | 28 |
| Income (1939) | 1000 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | Carbondale |
| Est. Birth Year | ~1905 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| Ethel Brennan | Spouse | — | 35 | ~1905 |
| Joseph Brennan | Son | — | 12 | ~1928 |
| Joseph Brennan | Head | — | 35 | ~1905 |
Census Appearances
1920
Lackawanna, Pennsylvania
Son, age 14
Lackawanna, Pennsylvania · implied b. ~1906 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Lackawanna, Pennsylvania
Head, age 25
Lackawanna, Pennsylvania · implied b. ~1905 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 22 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Laborer |
| Industry | Coal mine |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Lackawanna-County, Pennsylvania
Head, age 35
Lackawanna-County, Pennsylvania · implied b. ~1905 — 3 household members
| Surname | BRENNAN |
| Given Name | JOSEPH |
| Relationship to Head | HEAD |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | CARBONDALE |
| 1935 Residence (County) | LACKAWANNA |
| Occupation | LABORER |
| Industry | COAL MINES |
| Class of Worker | PW |
| Hours Worked | 28 |
| Income (1939) | 1000 |
| Highest Grade | Hs 4 |
| 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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Martin Brennan (~0.92 confidence) and mother Alice Brennan (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Martin Brennan
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Alice Brennan
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Joseph Brennan
Head · 1940 · age 35 · b. ~1905 · 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 — Lackawanna-County, Pennsylvania
Open full size
1940 US Federal Census — Lackawanna-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03522-00753)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Robert Brennan | 26 | SON | Electric Lineman | Pennsylvania |
| 42 | Helen Brennan | 32 | DAUGHTER | — | Pennsylvania |
| 43 | Frances Brennan | 5 | GRAND DAUGHTER | — | Pennsylvania |
| 44 | Helen Brennan | 4 | GRAND DAUGHTER | — | Pennsylvania |
| 45 | Marion Brennan | 2 | GRAND DAUGHTER | — | Pennsylvania |
| 46 | Vassor Jones | 55 | HEAD | Proprietor | Pennsylvania |
| 47 | Mabel Jones | 50 | WIFE | — | Pennsylvania |
| 48 | Mary Jones | 14 | daughter | — | Pennsylvania |
| 49 | Timothy J Holmes | 68 | HEAD | Gas Dispatcher | Pennsylvania |
| 50 | Rose E Holmes | 58 | WIFE | — | Pennsylvania |
| 51 | Mary Holmes | 25 | DAUGHTER | — | Pennsylvania |
| 52 | Albert Hilditch | 43 | HEAD | Laborer | WALES |
| 53 | Mary E Hilditch | 45 | WIFE | — | WALES |
| 54 | Albert Hilditch | 11 | SON | — | Pennsylvania |
| 55 | Morgan Gore | 42 | LODGER | Laborer | WALES |
| 56 | John Armstrong | 42 | HEAD | Conductor | Pennsylvania |
| 57 | Agnes Armstrong | 41 | WIFE | — | Pennsylvania |
| 58 | Alberta Armstrong | 20 | DAUGHTER | — | Pennsylvania |
| 59 | Romayne Armstrong | 17 | DAUGHTER | — | Pennsylvania |
| 60 | Earl Sweeney | 33 | HEAD | Laborer | Pennsylvania |
| 61 | Bertha Sweeney | 28 | WIFE | — | Pennsylvania |
| 62 | Joseph Sweeney | 0 | SON | — | Pennsylvania |
| 63 | Julya Mchale | 67 | HEAD | — | Pennsylvania |
| 64 | James O'Toole | 40 | LODGER | Miner | FREE STATE |
| 65 | William O'Toole | 43 | LODGER | Laborer | FREE STATE |
| 66 | Joseph Brennan THIS PERSON | 35 | HEAD | Laborer | Pennsylvania |
| 67 | Ethel Brennan | 35 | WIFE | — | Pennsylvania |
| 68 | Joseph Jr Brennan | 12 | SON | — | Pennsylvania |
| 69 | John Mannion | 46 | HEAD | Laborer | Pennsylvania |
| 70 | Joana Mannion | 45 | WIFE | — | Pennsylvania |
| 71 | Pauline Mannion | 17 | DAUGHTER | — | Pennsylvania |
| 72 | Anna Mannion | 14 | DAUGHTER | — | Pennsylvania |
| 73 | Agnes Gallaher | 68 | HEAD | — | Pennsylvania |
| 74 | Thesa Gallaher | 56 | SISTER | — | Pennsylvania |
| 75 | Lena Nolan | 55 | HEAD | Stenographer | Pennsylvania |
| 76 | Thomas Nolan | 62 | BROTHER | Carpenter | Pennsylvania |
| 77 | Harry Felosott | 52 | HEAD | Proprietor | RUSSIA |
| 78 | Anna Felosott | 40 | WIFE | — | RUSSIA |
| 79 | Eddie Felosott | 22 | SON | Salesman | Pennsylvania |
| 80 | Abe Felosott | 17 | SON | — | Pennsylvania |
Pedigree Summary
Joseph
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)