MT
Mary Tierney — 1920 US Census Record
Model Tree available1920 United States Federal Census · Lackawanna, Pennsylvania
Our Model Tree links this Mary Tierney across the 1920, 1930 and 1940 US Censuses in Lackawanna, Pennsylvania (XGBoost, ~Confirmed), with identified parents Bert & Susan — first a daughter (b.~1919), then head of a 4-person household.
Age 1
b. ~1919
Female
Daughter
Born: Pennsylvania
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Lackawanna, Pennsylvania |
| Surname | Tierney |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | none |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Scranton City |
| Est. Birth Year | ~1919 |
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.
4 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Susan Tierney | Spouse | — | 32 | ~1888 |
| Mary Tierney | Daughter | — | 1 | ~1919 |
| John Tierney | Son | — | 2 | ~1918 |
| Bert Tierney | Head | — | 34 | ~1886 |
Census Appearances
1920
Lackawanna, Pennsylvania
Daughter, age 1
Lackawanna, Pennsylvania · implied b. ~1919 — 4 household members
| Surname | Tierney |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Lackawanna, Pennsylvania
Daughter, age 11
Lackawanna, Pennsylvania · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Tearney |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Lackawanna-County, Pennsylvania
Daughter, age 22
Lackawanna-County, Pennsylvania · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Tierney |
| Given Name | Malverda |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Scranton City |
| 1935 Residence (County) | Lackawanna |
| Occupation | stenographer |
| Industry | awning shop |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 236 |
| Highest Grade | H-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 Mary Tierney across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Bert Tierney (~0.92 confidence) and mother Susan Tierney (~0.92 confidence) and father Albert Tierney (~0.92 confidence) and father Martin Tearney (~0.92 confidence) and mother Kathryn Tierney (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Bert Tierney
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Susan Tierney
b. ~1888
Source mother
● Household
· direct · ~0.92
Father
Albert Tierney
b. ~1891
Source father
● Household
· direct · ~0.92
Father
Martin Tearney
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Kathryn Tierney
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Tierney
Daughter · 1920 · age 1 · b. ~1919 · Pennsylvania
★ You are viewing this record
Sibling
John Tierney
Sibling · 1920 · age 2
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
1920 US Federal Census — Lackawanna, Pennsylvania
Open full size
1920 US Federal Census — Lackawanna, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1578unit:1067)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Arthur Keegan | 14 | Son | None | Pennsylvania |
| 52 | Gertrude Keegan | 13 | Daughter | None | Pennsylvania |
| 53 | Alice Tierney | 36 | Head | None | Pennsylvania |
| 54 | Genevieve Tierney | 33 | Wife | Yard Master | Pennsylvania |
| 55 | William F Keegan | 35 | Boarder | Teller | Pennsylvania |
| 56 | Bert A Tierney | 34 | Head | Engineer | Wales |
| 57 | Susan M Tierney | 32 | Wife | None | Pennsylvania |
| 58 | John Tierney | 2 | Son | None | Pennsylvania |
| 59 | Mary Tierney THIS PERSON | 1 | Daughter | None | Pennsylvania |
| 60 | James Ruane | 43 | Head | Mine Foreman | Ireland |
| 61 | Sarah Ruane | 43 | Wife | None | Ireland |
| 62 | Louisa F Ruane | 17 | Daughter | None | Pennsylvania |
| 63 | Patrick Mcgrail | 45 | Head | Miner | Ireland |
| 64 | Bridget Mcgrail | 44 | Wife | None | Ireland |
| 65 | John Hoban | 21 | Nephew | Electrician | Pennsylvania |
| 66 | Mary Hoban | 24 | Niece | Operator | Pennsylvania |
| 67 | Sarah Hoban | 20 | Niece | Operator | Pennsylvania |
| 68 | Catherine Hoban | 18 | Niece | Cashier | Pennsylvania |
| 69 | Francis Hoban | 16 | Nephew | Laborer | Pennsylvania |
| 70 | Thos V Jones | 70 | Head | Laborer | Wales |
| 71 | Catherine Jones | 70 | Wife | None | Wales |
| 72 | Thos W Jones | 29 | Son | Laborer Mine | Pennsylvania |
| 73 | Julia Jones | 28 | Daughter-in-law | None | Pennsylvania |
| 74 | Edith G Jones | 1 | Granddaughter | None | Pennsylvania |
| 75 | Wallie S Morris | 48 | Head | Florist | Pennsylvania |
| 76 | Ella M Morris | 42 | Wife | None | Pennsylvania |
| 77 | Margaret J Morris | 19 | Daughter | Clerk | Pennsylvania |
| 78 | Wallie S Jr Morris | 11 | Son | None | Pennsylvania |
| 79 | Edgar J Morris | 7 | Son | None | Pennsylvania |
| 80 | Mildred D Morris | 5 | Daughter | None | Pennsylvania |
| 81 | Margaret Hayes | 71 | Head | None | Ireland |
| 82 | David Hayes | 45 | Son | Clerk | Pennsylvania |
| 83 | Agnes Hayes | 32 | Daughter | Sales Lady | Pennsylvania |
| 84 | Elizabeth Hayes | 31 | Daughter | School Teacher | Pennsylvania |
| 85 | Margaret Hayes | 19 | Granddaughter | Stenographer | Pennsylvania |
| 86 | Mary Tucker | 68 | Sister | House Keeper | Pennsylvania |
| 87 | Joseph W Rhodes | 47 | Head | Miner Laborer | Wales |
| 88 | Margaret Rhodes | 43 | Wife | None | New York |
| 89 | Joseph G Rhodes | 20 | Son | Clerk | Wales |
| 90 | Marcus J Rhodes | 15 | Son | None | Pennsylvania |
| 91 | Arthur B Rhodes | 6 | Son | None | Pennsylvania |
| 92 | John G Reese | 40 | Head | Fireman | Pennsylvania |
| 93 | Annie Reese | 37 | Wife | None | New York |
| 94 | Clarence S Reese | 17 | Son | Mine Surveyor | Pennsylvania |
| 95 | William H Drew | 50 | Head | Laborer | New Jersey |
| 96 | Elizabeth Drew | 49 | Wife | None | Pennsylvania |
| 97 | Joseph Keeler | 50 | Boarder | Salesman | England |
| 98 | William W Williams | 42 | Head | Miner Laborer | Pennsylvania |
| 99 | Emma Williams | 41 | Wife | None | Pennsylvania |
| 100 | Alfred Williams | 54 | Head | Section Foreman | Wales |
Pedigree Summary
Mary + 1 sibling
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 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)