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Mary Alexander — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Mary Alexander across the 1900, 1910, 1920 and 1930 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1858), then head of a 2-person household.
Age 62
b. ~1858
Female
Head
Born: England
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | Allegheny, Pennsylvania |
| Surname | Alexander |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Widowed |
| Birthplace | England |
| Year of Immigration | 1867 |
| Naturalization Status | Naturalized |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | England |
| Year of Naturalization | 1876 |
| Birthplace (normalized) | england |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1858 |
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.
2 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Louise Alexander | Daughter | — | 31 | ~1889 |
| Mary Alexander | Head | — | 62 | ~1858 |
Census Appearances
1900
Allegheny, Pennsylvania
Spouse, age 43
Allegheny, Pennsylvania · implied b. ~1857 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | England |
| Birth Month | Sep |
| Birth Year | 1857 |
| Year of Immigration | 1872 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | England |
| Birthplace (normalized) | england |
1910
Allegheny, Pennsylvania
Spouse, age 51
Allegheny, Pennsylvania · implied b. ~1859 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | England |
| Years Married | 31 |
| Children Born | 3 |
| Children Living | 2 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | none |
| Birth Country | England |
| Birthplace (normalized) | england |
1920
Allegheny, Pennsylvania
Head, age 62
Allegheny, Pennsylvania · implied b. ~1858 — 2 household members
| Surname | Alexander |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Widowed |
| Birthplace | England |
| Year of Immigration | 1867 |
| Naturalization Status | Naturalized |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | England |
| Year of Naturalization | 1876 |
| Birthplace (normalized) | england |
1930
Allegheny, Pennsylvania
Other, age 72
Allegheny, Pennsylvania · implied b. ~1858 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Mary |
| Relationship to Head | Lodger |
| Sex | F |
| Color / Race | White |
| Age | 72 |
| Marital Status | Widowed |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1867 |
| Age at First Marriage | 18 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Birthplace (normalized) | england |
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 Alexander across 4 US Census years (1900, 1910, 1920 and 1930) in Allegheny, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Alexander
Head · 1920 · age 62 · b. ~1858 · 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 — Allegheny, Pennsylvania
Open full size
1920 US Federal Census — Allegheny, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1525unit:0681)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Josephine Owegarzata | 41 | Head | — | Poland |
| 2 | Bernard Owegarzata | 24 | Son | Clerk | Pennsylvania |
| 3 | Robert B. Owegarzata | 23 | Son | Truck Driver | Pennsylvania |
| 4 | Henry J. Owegarzata | 19 | Son | Carpenter | Pennsylvania |
| 5 | Victor M. Owegarzata | 16 | Son | — | Pennsylvania |
| 6 | Frances Owegarzata | 14 | Daughter | — | Pennsylvania |
| 7 | Helen Owegarzata | 11 | Daughter | — | Pennsylvania |
| 8 | Mary Owegarzata | 6 | Daughter | — | Pennsylvania |
| 9 | Clara Owegarzata | 4 | Daughter | — | Pennsylvania |
| 10 | James Ballasky | 27 | Head | Laborer | Pennsylvania |
| 11 | Beatrice Ballasky | 26 | Wife | Laborer | Pennsylvania |
| 12 | Hannah Ballasky | 66 | Mother | — | Ireland |
| 13 | Albert A. Hopper | 32 | Head | Laborer | Pennsylvania |
| 14 | Margaret M. Hopper | 28 | Wife | — | Pennsylvania |
| 15 | Elizabeth Hopper | 10 | Daughter | — | Pennsylvania |
| 16 | Catherine Hopper | 6 | Daughter | — | Pennsylvania |
| 17 | Alice Hopper | 4 | Daughter | — | Pennsylvania |
| 18 | Edward Wagner | 37 | Head | Laborer | Poland |
| 19 | Albertine Wagner | 29 | Wife | — | Poland |
| 20 | Bernard Wagner | 10 | Son | — | Pennsylvania |
| 21 | Bertha Herrmann | 53 | Head | — | Pennsylvania |
| 22 | Helen C. Herrmann | 24 | Daughter | Clerk | Pennsylvania |
| 23 | Laura Philips | 62 | Head | — | Pennsylvania |
| 24 | John Noe | 37 | Head | Fitter | Pennsylvania |
| 25 | Kathryn Noe | 40 | Wife | — | Pennsylvania |
| 26 | Antony Kochansky | 26 | Head | Laborer | Poland |
| 27 | Anna Kochansky | 23 | Wife | — | Austria |
| 28 | Walter Kochansky | 5 | Son | — | Pennsylvania |
| 29 | John Kapac | 56 | Head | Laborer | Poland |
| 30 | Christina Kapac | 53 | Wife | — | Poland |
| 31 | Stephen Linker | 31 | Head | Electrician | Germany |
| 32 | Frances M. Linker | 25 | Wife | — | Pennsylvania |
| 33 | Joseph P. Linker | 6 | Son | — | Pennsylvania |
| 34 | Frank C. Linker | 4 | Son | — | Pennsylvania |
| 35 | Elizabeth Linker | 2 | Daughter | — | Pennsylvania |
| 36 | Theodore F. Linker | 1 | Son | — | Pennsylvania |
| 37 | Mary Alexander THIS PERSON | 62 | Head | — | England |
| 38 | Louise A. Alexander | 31 | Daughter | Bookkeeper | Pennsylvania |
| 39 | Maria Walters | 54 | Head | — | Germany |
| 40 | August Walters | 26 | Son | Printer | Pennsylvania |
| 41 | Otto Walters | 23 | Son | Clerk | Pennsylvania |
| 42 | Marie Walters | 20 | Daughter | — | Pennsylvania |
| 43 | John Walters | 1 | Grandson | — | Pennsylvania |
| 44 | Harry Nicholson | 10 | Boarder | — | Pennsylvania |
| 45 | Harry H. Flanburg | 32 | Head | Laborer | Washington |
| 46 | Veronica U. Flanburg | 27 | Wife | — | Pennsylvania |
| 47 | Helen F. Flanburg | 5 | Daughter | — | Pennsylvania |
| 48 | Jeremiah J. Dixon | 43 | Head | Clerk | Pennsylvania |
| 49 | Ella A. Dixon | 43 | Wife | — | Pennsylvania |
| 50 | John C. Dixon | 12 | Son | — | 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)