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Mary Brennan — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this Mary Brennan across the 1920, 1930 and 1940 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1865), then head of a 8-person household.
Age 55
b. ~1865
Female
Head
Born: Ireland
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | Philadelphia, Pennsylvania |
| Surname | Brennan |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1889 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1902 |
| Birthplace (normalized) | ireland |
| Township / Ward | Philadelphia City |
| Est. Birth Year | ~1865 |
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.
8 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Brennan | Daughter | — | 21 | ~1899 |
| Mary Brennan | Head | — | 55 | ~1865 |
| Michael Brennan | Son | — | 12 | ~1908 |
| William Brennan | Son | — | 24 | ~1896 |
| Joseph Brennan | Son | — | 19 | ~1901 |
| James Brennan | Son | — | 28 | ~1892 |
| Richard Brennan | Son | — | 25 | ~1895 |
| Charles Brennan | Son | — | 23 | ~1897 |
Census Appearances
1920
Philadelphia, Pennsylvania
Head, age 55
Philadelphia, Pennsylvania · implied b. ~1865 — 8 household members
| Surname | Brennan |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1889 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1902 |
| Birthplace (normalized) | ireland |
1930
Philadelphia, Pennsylvania
Other, age 67
Philadelphia, Pennsylvania · implied b. ~1863 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennen |
| Given Name | Mary |
| Relationship to Head | Inmate |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Industry | 34 |
| Class of Worker | 1880 |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Philadelphia-County, Pennsylvania
Other, age 79
Philadelphia-County, Pennsylvania · implied b. ~1861 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | Mary |
| Relationship to Head | Mother |
| Sex | F |
| Color / Race | White |
| Age | 79 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Naturalization Status | Naturalized |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | No 3 |
| 1935 Residence | Same house |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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.
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This person
Anchor record
Mary Brennan
Head · 1920 · age 55 · b. ~1865 · Pennsylvania
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Philadelphia, Pennsylvania
Open full size
1920 US Federal Census — Philadelphia, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1629unit:0071)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Joseph Cranston | 10 | Boarder | — | Pennsylvania |
| 52 | George Cranston | 37 | Boarder | Machinist | Pennsylvania |
| 53 | Anna Zulick | 48 | Head | — | Bavaria Germany |
| 54 | Herman Zulick | 22 | Son | Cook | Bavaria Germany |
| 55 | Johanna Zulick | 19 | Daughter | Bookkeeper | Bavaria Germany |
| 56 | Ernest Zulick | 21 | Boarder | Cook | Piedmont Italy |
| 57 | Mary B. Shane | 39 | Head | Accommodator | Pennsylvania |
| 58 | Elizabeth Shane | 16 | Son | Messenger Boy | Pennsylvania |
| 59 | Mary Shane | 14 | Son | — | Pennsylvania |
| 60 | Helen Shane | 11 | Son | — | Pennsylvania |
| 61 | Raymond Donahue | 25 | Head | Rigger | Massachusetts |
| 62 | Bertha Donahue | 23 | Wife | — | Pennsylvania |
| 63 | Robert Donahue | 3 | Son | — | Pennsylvania |
| 64 | Mary Donahue | 1 | Daughter | — | Pennsylvania |
| 65 | Catherine Donahue | 0 | Daughter | — | Pennsylvania |
| 66 | George Rohr | 50 | Head | Motorman | Delaware |
| 67 | Ida Rohr | 42 | Wife | — | New Jersey |
| 68 | Maude White | 20 | Daughter | Saleslady | Delaware |
| 69 | Edward White | 11 | Grandson | — | Pennsylvania |
| 70 | Mary Brennan THIS PERSON | 55 | Head | — | Ireland |
| 71 | James Brennan | 28 | Son | Patrolman | New Jersey |
| 72 | Richard Brennan | 25 | Son | Driver | New Jersey |
| 73 | William Brennan | 24 | Son | Gas Clerk | New Jersey |
| 74 | Charles Brennan | 23 | Son | Chauffeur | Ireland |
| 75 | Mary Brennan | 21 | Daughter | Cashier | Pennsylvania |
| 76 | Joseph Brennan | 19 | Son | Electrician Helper | Pennsylvania |
| 77 | Michael Brennan | 12 | Son | — | Pennsylvania |
| 78 | Harry Gable | 50 | Head | Truckman | Maryland |
| 79 | Mary Gable | 48 | Wife | — | Scotland |
| 80 | Marie Gable | 19 | Daughter | Telephone Operator | Pennsylvania |
| 81 | William Gable | 17 | Son | — | Pennsylvania |
| 82 | Frank Gable | 14 | Son | — | Pennsylvania |
| 83 | John Gable | 10 | Son | — | Pennsylvania |
| 84 | Leo Alkerity | 25 | Head | Chauffeur | Pennsylvania |
| 85 | May Alkerity | 22 | Wife | — | Pennsylvania |
| 86 | Joseph Alkerity | 4 | Son | — | Pennsylvania |
| 87 | Edward Alkerity | 2 | Son | — | Pennsylvania |
| 88 | Joseph O'Rourke | 32 | Head | Oiler | Ireland |
| 89 | Mary O'Rourke | 28 | Wife | — | Ireland |
| 90 | Bridget O'Rourke | 7 | Son | — | Ireland |
| 91 | Joseph O'Rourke | 6 | Son | — | Ireland |
| 92 | William O'Rourke | 3 | Daughter | — | Pennsylvania |
| 93 | Helen O'Rourke | 1 | Daughter | — | Pennsylvania |
| 94 | Harry Kraft | 34 | Head | Boiler Maker | Florida |
| 95 | Grace Kraft | 42 | Wife | — | Pennsylvania |
| 96 | George Miller | 70 | Head | Booker | Pennsylvania |
| 97 | Glada Miller | 70 | Wife | — | Pennsylvania |
| 98 | Elizabeth Miller | 13 | Sister | — | Pennsylvania |
| 99 | Michael Logue | 34 | Head | Machinist | Ireland |
| 100 | Mary Logue | 37 | Wife | — | Ireland |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)