MB
Mary Brennan — 1930 US Census Record
Model Tree available1930 United States Federal Census · Lackawanna, Pennsylvania
Our Model Tree links this Mary Brennan across the 1920, 1930 and 1940 US Censuses in Lackawanna, Pennsylvania (XGBoost, ~Confirmed), with identified parents Peter & Elizabeth — first a daughter (b.~1913), then head of a 6-person household.
Age 17
b. ~1913
Female
Daughter
Born: Penna
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Lackawanna, Pennsylvania |
| Surname | Brennan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Penna |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
| Township / Ward | Olyphant Borough |
| Est. Birth Year | ~1913 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Brennan | Daughter | — | 17 | ~1913 |
| Peter Brennan | Head | — | 51 | ~1879 |
| Margaret Booth | Other | — | 24 | ~1906 |
| William Booth | Other | — | 2 | ~1928 |
| William Booth | Other | — | 28 | ~1902 |
| Elizabeth Brennan | Spouse | — | 49 | ~1881 |
Census Appearances
1920
Lackawanna, Pennsylvania
Daughter, age 6
Lackawanna, Pennsylvania · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Penna |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
1930
Lackawanna, Pennsylvania
Daughter, age 17
Lackawanna, Pennsylvania · implied b. ~1913 — 6 household members
| Surname | Brennan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Penna |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
1940
Lackawanna-County, Pennsylvania
Other, age 27
Lackawanna-County, Pennsylvania · implied b. ~1913 — 17 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennen |
| Given Name | Mary |
| Relationship to Head | I |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Penna |
| 1935 Residence (City) | Olyphant |
| 1935 Residence (County) | Lacka |
| Occupation | General Nurse |
| Industry | Hospital |
| Class of Worker | PW |
| Hours Worked | 67 |
| Income (1939) | 672 |
| Highest Grade | Hs 4 |
| 1935 Residence | Penna |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
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 Mary Brennan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Peter Brennan (~0.92 confidence) and mother Elizabeth Brennan (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Peter Brennan
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Brennan
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Brennan
Daughter · 1930 · age 17 · b. ~1913 · 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 — Lackawanna, Pennsylvania
Open full size
1930 US Federal Census — Lackawanna, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2050:0667)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Gertrude Noyle | 49 | Sister | — | Penna |
| 52 | John J. Bebenek | 39 | Head | Doctor | Penna |
| 53 | Elizabeth Bloninger | 50 | Head | Housework | Penna |
| 54 | Ann Basalyga | 29 | Boarder | Sorter | Penna |
| 55 | William Mcdonnell | 60 | Boarder | Laborer | Penna. |
| 56 | Edward Kintal | 39 | Head | Merchant | Poland |
| 57 | Mary Kintal | 30 | Wife | — | Penna |
| 58 | Sabina Kintal | 10 | Daughter | — | Penna |
| 59 | Edward Jr. Kintal | 8 | Son | — | Penna |
| 60 | Irene Kintal | 5 | Daughter | — | Penna |
| 61 | Peter Brennan | 51 | Head | Laborer | England |
| 62 | Elizabeth Brennan | 49 | Wife | Proprietor | England |
| 63 | Mary Brennan THIS PERSON | 17 | Daughter | — | Penna |
| 64 | William Booth | 28 | Brother-in-law | Laborer | England |
| 65 | Margaret Booth | 24 | Sister-in-law | — | Penna |
| 66 | William Booth | 2 | Nephew | — | Penna |
| 67 | Joseph Kondrat | 37 | Head | Merchant | Poland |
| 68 | Sarah Kondrat | 25 | Wife | — | Penna |
| 69 | Stanley Kondrat | 9 | Son | — | Penna |
| 70 | Joseph Jr. Kondrat | 7 | Son | — | Penna |
| 71 | Charles Kondrat | 3 | Son | — | Penna |
| 72 | Thomas Boulthead | 44 | Head | Laborer | England |
| 73 | Mrs. Mary Boulthead | 37 | Wife | — | Massachusetts |
| 74 | Joseph Boulthead | 14 | Son | — | Penna |
| 75 | Mary Boulthead | 12 | Daughter | — | Penna |
| 76 | Marcella Boulthead | 7 | Daughter | — | Penna |
| 77 | John Mcdevitt | 43 | Head | Proprietor | Penna |
| 78 | Sarah Mcdevitt | 46 | Wife | — | Ireland |
| 79 | John Jr. Mcdevitt | 4 | Son | — | Penna |
| 80 | Winifred Walsh | 54 | Sister-in-law | — | Ireland |
| 81 | Thomas Cavanaugh | 51 | Brother-in-law | Repairman | Ireland |
| 82 | Martin Cavanaugh | 43 | Brother-in-law | Engineer | Penna |
| 83 | Mary Cavanaugh | 15 | Niece | — | Penna |
| 84 | Margaret Cavanaugh | 14 | Niece | — | Penna |
| 85 | Ellen Murphy | 65 | Head | — | Penna |
| 86 | Tom Murphy | 14 | Grandson | — | Penna |
| 87 | Thomas Gibbons | 51 | Head | Manager | Penna |
| 88 | Nellie N. Gibbons | 46 | Wife | — | Penna |
| 89 | Richard Gibbons | 21 | Son | — | Penna |
| 90 | Mary Gibbons | 17 | Daughter | — | Penna |
| 91 | Frank Gibbons | 11 | Son | — | Penna |
| 92 | Mary Feeley | 66 | Head | — | Penna |
| 93 | William Feeley | 35 | Son | Engineer | Penna |
| 94 | Mary Feeley | 31 | Daughter | Teacher | Penna |
| 95 | Arthur W. Craven | 36 | Head | Laborer | Penna |
| 96 | Mary Craven | 33 | Wife | — | Penna |
| 97 | Phyllis Craven | 12 | Daughter | — | Penna |
| 98 | Robert J. Craven | 10 | Son | — | Penna |
| 99 | Arthur Craven | 8 | Son | — | Penna |
| 100 | Ethel Craven | 6 | Daughter | — | Penna |
Pedigree Summary
Mary
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 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)