ML
Mary Leonard — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Mary Leonard across the 1900, 1910 and 1920 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1866), then head of a 3-person household.
Age 54
b. ~1866
Female
Spouse
Born: England
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Allegheny, Pennsylvania |
| Surname | Leonard |
| Given Name | Mary G. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | England |
| Year of Immigration | 1880 |
| Naturalization Status | Naturalized |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Additional Details | |
| Occupation | Music Teacher |
| Industry | Home |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Birthplace (normalized) | england |
| Occupation | Teacher |
| Township / Ward | Bethel Township |
| Est. Birth Year | ~1866 |
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.
3 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Sarah Leonard | Daughter | — | 22 | ~1898 |
| John Leonard | Head | — | 53 | ~1867 |
| Mary Leonard | Spouse | — | 54 | ~1866 |
Census Appearances
1900
Washington, Pennsylvania
Spouse, age 35
Washington, Pennsylvania · implied b. ~1865 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | England |
| Birth Month | June |
| Birth Year | 1865 |
| Year of Immigration | 1881 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | England |
| Birthplace (normalized) | england |
1910
Allegheny, Pennsylvania
Spouse, age 44
Allegheny, Pennsylvania · implied b. ~1866 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | Mary A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | England |
| Years Married | 24 |
| Children Born | 6 |
| Children Living | 3 |
| Year of Immigration | 1881 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Birth Country | England |
| Birthplace (normalized) | england |
1920
Allegheny, Pennsylvania
Spouse, age 54
Allegheny, Pennsylvania · implied b. ~1866 — 3 household members
| Surname | Leonard |
| Given Name | Mary G. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | England |
| Year of Immigration | 1880 |
| Naturalization Status | Naturalized |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Music Teacher |
| Industry | Home |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | 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 Leonard across 3 US Census years (1900, 1910 and 1920) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Leonard
Spouse · 1920 · age 54 · b. ~1866 · 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:1920:14thcensusofpopu1509unit:0444)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Samuel Deeds | 69 | Head | — | Pennsylvania |
| 2 | J. B. Cummins | 73 | Head | Care Taker | Pennsylvania |
| 3 | Mary H. Cummins | 70 | Wife | Farmer | Pennsylvania |
| 4 | Leona G. Cummins | 43 | Daughter | — | Pennsylvania |
| 5 | Isaac F. Boyer | 58 | Head | Real Estate | Pennsylvania |
| 6 | Viola M. Boyer | 54 | Wife | — | Pennsylvania |
| 7 | Frank Boyer | 22 | Son | Partner | Pennsylvania |
| 8 | Marie V. Boyer | 18 | Daughter | — | Pennsylvania |
| 9 | H. L. Klenzing | 57 | Head | Farmer | Pennsylvania |
| 10 | Margaret Klenzing | 55 | Wife | — | Pennsylvania |
| 11 | Hilda Klenzing | 22 | Daughter | — | Pennsylvania |
| 12 | Raymond Klenzing | 22 | Son | Clerk | Pennsylvania |
| 13 | Edw. Gerhold | 35 | Head | Genl. Farming | Pennsylvania |
| 14 | Abigail Gerhold | 34 | Wife | — | Pennsylvania |
| 15 | Louis Gerhold | 4 | Son | — | Pennsylvania |
| 16 | Ruth Anna Gerhold | 3 | Daughter | — | Pennsylvania |
| 17 | Ralph Gerhold | 2 | Son | — | Pennsylvania |
| 18 | James Burrett | 55 | Head | Laborer | Scotland |
| 19 | Marie Burrett | 55 | Wife | — | England |
| 20 | Nick Patak | 31 | Head | Laborer | Austria |
| 21 | Annie Patak | 30 | Wife | — | Austria |
| 22 | John Patak | 8 | Son | — | Pennsylvania |
| 23 | Mike Patak | 6 | Son | — | Pennsylvania |
| 24 | Pete Patak | 1 | Son | — | Pennsylvania |
| 25 | Clarence Jamison | 48 | Head | Carpenter | Pennsylvania |
| 26 | Elizabeth Jamison | 48 | Wife | — | Pennsylvania |
| 27 | John Simmons Jamison | 8 | Son | — | Colorado |
| 28 | Wm H. Winters | 63 | Uncle-in-law | Watchman | Pennsylvania |
| 29 | Agnes L. Jamison | 59 | Head | — | Pennsylvania |
| 30 | Elizabeth B. Hicks | 37 | Daughter | — | Pennsylvania |
| 31 | Mary Jane Larimer | 64 | Sister | — | Pennsylvania |
| 32 | John E. Leonard | 53 | Head | — | Pennsylvania |
| 33 | Mary G. Leonard THIS PERSON | 54 | Wife | Music Teacher | England |
| 34 | Sarah J. Leonard | 22 | Daughter | Electrical Eng. | Pennsylvania |
| 35 | Chester N. Weems | 33 | Head | — | Ohio |
| 36 | Ellen B. Weems | 31 | Wife | — | Pennsylvania |
| 37 | Chester Leonard Weems | 4 | Son | — | Pennsylvania |
| 38 | Andy Svitkovich | 33 | Head | Blacksmith | Austria |
| 39 | Mary Svitkovich | 33 | Wife | — | Austria |
| 40 | Anna Svitkovich | 11 | Daughter | — | Pennsylvania |
| 41 | Lois Svitkovich | 10 | Son | — | Pennsylvania |
| 42 | Josephine Svitkovich | 10 | Daughter | — | Pennsylvania |
| 43 | Mike Nestor | 30 | Head | Drafting | Austria |
| 44 | Anna Nestor | 27 | Wife | — | Austria |
| 45 | Mike Nestor | 5 | Son | — | Pennsylvania |
| 46 | Katy Nestor | 6 | Daughter | — | Pennsylvania |
| 47 | Mary Nestor | 3 | Daughter | — | Pennsylvania |
| 48 | Jennie Nestor | 2 | Daughter | — | Pennsylvania |
| 49 | Wallace Brimbek | 38 | Head | Carpenter | Austria |
| 50 | Anna Brimbek | 35 | Wife | — | Austria |
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)