ML
Mary Lucas — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Mercer, Pennsylvania
Our Model Tree links this Mary Lucas across the 1910, 1920 and 1930 US Censuses in Mercer, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1890), then head of a 6-person household.
Age 30
b. ~1890
Female
Spouse
Born: Austria
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Mercer, Pennsylvania |
| Surname | Lucas |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Austria |
| Year of Immigration | 1902 |
| Naturalization Status | Alien |
| Father's Birthplace | Austria |
| Mother's Birthplace | Austria |
| Additional Details | |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Mother Tongue | Slovak |
| Birth Country | Austria |
| Birthplace (normalized) | austria |
| Township / Ward | Farrell Borough |
| Est. Birth Year | ~1890 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Lucas | Daughter | — | 7 | ~1913 |
| Annie Lucas | Daughter | — | 9 | ~1911 |
| Emma Lucas | Daughter | — | 1 | ~1919 |
| George Lucas | Head | — | 30 | ~1890 |
| Edward Lucas | Son | — | 5 | ~1915 |
| Mary Lucas | Spouse | — | 30 | ~1890 |
Census Appearances
1910
Fayette, Pennsylvania
Spouse, age 19
Fayette, Pennsylvania · implied b. ~1891 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Luca |
| Given Name | Mary Sr. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Married |
| Birthplace | Austria |
| Years Married | 3 |
| Children Born | 2 |
| Children Living | 1 |
| Father's Birthplace | Austria |
| Mother's Birthplace | Austria |
| Occupation | Housekeeper |
| Birth Country | Austria |
| Birthplace (normalized) | austria |
1920
Mercer, Pennsylvania
Spouse, age 30
Mercer, Pennsylvania · implied b. ~1890 — 6 household members
| Surname | Lucas |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Austria |
| Year of Immigration | 1902 |
| Naturalization Status | Alien |
| Father's Birthplace | Austria |
| Mother's Birthplace | Austria |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Mother Tongue | Slovak |
| Birth Country | Austria |
| Birthplace (normalized) | austria |
1930
Luzerne, Pennsylvania
Spouse, age 40
Luzerne, Pennsylvania · implied b. ~1890 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lukas |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Austria |
| Naturalization Status | Naturalized |
| Year of Immigration | 1902 |
| Age at First Marriage | 18 |
| Father's Birthplace | Austria |
| Mother's Birthplace | Austria |
| Can Read/Write | Yes |
| Mother Tongue | Slovak |
| Birth Country | Austria |
| Birthplace (normalized) | austria |
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 Lucas across 3 US Census years (1910, 1920 and 1930) in 3 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Lucas
Spouse · 1920 · age 30 · b. ~1890 · Pennsylvania
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Mercer, Pennsylvania
Open full size
1920 US Federal Census — Mercer, Pennsylvania
Page Contents
47 people indexed on this census page (ia:1920:14thcensusofpopu1602unit:0712)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ben Segophy | 43 | Head | Teamster | Poland |
| 2 | Mary Segophy | 35 | Wife | — | Poland |
| 3 | Frank Segophy | 8 | Son | Yes | Ohio |
| 4 | Charles Segophy | 3 | Son | — | Pennsylvania |
| 5 | Joe Segophy | 1 | Son | — | Pennsylvania |
| 6 | George Lucas | 30 | Head | Wheeler | Austria |
| 7 | Mary Lucas THIS PERSON | 30 | Wife | — | Austria |
| 8 | Annie Lucas | 9 | Daughter | Yes | Ohio |
| 9 | Mary Lucas | 7 | Daughter | Yes | Pennsylvania |
| 10 | Edward Lucas | 5 | Son | — | Pennsylvania |
| 11 | Emma Lucas | 1 | Daughter | — | Pennsylvania |
| 12 | William Ruff | 28 | Head | Laborer | Austria |
| 13 | Mary Ruff | 27 | Wife | — | Austria |
| 14 | Nickel Ruff | 5 | Son | — | Pennsylvania |
| 15 | Mary Ruff | 3 | Daughter | — | Pennsylvania |
| 16 | Angeline Ruff | 1 | Daughter | — | Pennsylvania |
| 17 | John Penarchic | 38 | Head | Heater | Austria |
| 18 | Katie Penarchic | 34 | Wife | — | Austria |
| 19 | Annie Penarchic | 15 | Daughter | — | Austria |
| 20 | Michel Penarchic | 9 | Son | Yes | Pennsylvania |
| 21 | Katie Penarchic | 5 | Daughter | — | Pennsylvania |
| 22 | Helen Penarchic | 2 | Daughter | — | Pennsylvania |
| 23 | Ignatz Datmak | 27 | Head | Carpenter | Poland |
| 24 | Mary Datmak | 26 | Wife | — | Poland |
| 25 | Mary Datmak | 5 | Daughter | — | Ohio |
| 26 | Chester Datmak | 4 | Son | — | Pennsylvania |
| 27 | Helen Datmak | 2 | Daughter | — | Pennsylvania |
| 28 | James Datmak | 1 | Son | — | Pennsylvania |
| 29 | Casmer Datmak | 0 | Daughter | — | Pennsylvania |
| 30 | Edward Nixon | 34 | Head | Yes | Alabama |
| 31 | Dorothy Nixon | 20 | Wife | Yes | Pennsylvania |
| 32 | Gilbert Nixon | 4 | Son | — | Alabama |
| 33 | Anita Nixon | 3 | Daughter | — | Pennsylvania |
| 34 | Amelia Gechie | 45 | Head | Laborer | Italy |
| 35 | Clement Gechie | 17 | Son | Laborer | Italy |
| 36 | Mary Gechie | 16 | Daughter | Laborer | Italy |
| 37 | Joe Filpa | 38 | Uncle | Painter | Italy |
| 38 | John Chec | 39 | Head | Pickler | Poland |
| 39 | Catherine Chec | 35 | Wife | — | Poland |
| 40 | Henry Chec | 4 | Son | — | Pennsylvania |
| 41 | Stephen Feill | 35 | Head | Count Runner | Poland |
| 42 | Agnes Feill | 30 | Wife | — | Poland |
| 43 | Mike Shec | 38 | Head | Tinner | Poland |
| 44 | Stella Shec | 26 | Wife | — | Poland |
| 45 | Genevieve Shec | 6 | Daughter | — | Pennsylvania |
| 46 | Casmer Shec | 4 | Son | — | Pennsylvania |
| 47 | Jennie Shec | 3 | Daughter | — | Pennsylvania |
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)