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William Leonard — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this William Leonard across the 1910, 1920 and 1930 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1878), then head of a 4-person household.
Age 52
b. ~1878
Male
Head
Born: Ohio
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | Leonard |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 31 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Additional Details | |
| Occupation | Motorman |
| Industry | Railways |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | $40 |
| Radio Set | R |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Motorman |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1878 |
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 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Leonard | Head | — | 52 | ~1878 |
| Edith Leonard | Other | — | 23 | ~1907 |
| Charles Leonard | Son | — | 25 | ~1905 |
| Mary Leonard | Spouse | — | 46 | ~1884 |
Census Appearances
1910
Allegheny, Pennsylvania
Head, age 33
Allegheny, Pennsylvania · implied b. ~1877 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Ohio |
| Years Married | 9 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Bartender |
| Industry | Saloon |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1920
Allegheny, Pennsylvania
Head, age 42
Allegheny, Pennsylvania · implied b. ~1878 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Ohio |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Salesman |
| Industry | Broom Co. |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Allegheny, Pennsylvania
Head, age 52
Allegheny, Pennsylvania · implied b. ~1878 — 4 household members
| Surname | Leonard |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 31 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | Motorman |
| Industry | Railways |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | $40 |
| Radio Set | R |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 William Leonard across 3 US Census years (1910, 1920 and 1930) in Allegheny, Pennsylvania, using XGBoost record linkage.
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This person
Anchor record
William Leonard
Head · 1930 · age 52 · b. ~1878 · Pennsylvania
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Allegheny, Pennsylvania
Open full size
1930 US Federal Census — Allegheny, Pennsylvania
Page Contents
49 people indexed on this census page (ia:1930:fifteenthcensus00reel1977:0716)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lawrence Litzinger | 37 | Head | Laborer | Pennsylvania |
| 2 | Marie Litzinger | 37 | Wife | Janitor | Ireland Free State |
| 3 | Dorothy Litzinger | 15 | Daughter | — | Pennsylvania |
| 4 | Joseph Litzinger | 13 | Son | — | Pennsylvania |
| 5 | Lawrence Jr. Litzinger | 5 | Son | — | Pennsylvania |
| 6 | Mary Litzinger | 73 | Mother-in-law | — | Ireland Free State |
| 7 | Morris Leff | 33 | Head | Merchant | Russia |
| 8 | Jennie S. Leff | 28 | Wife | Saleslady | Russia |
| 9 | Bessie G. Leff | 8 | Daughter | — | Pennsylvania |
| 10 | Mildred Leff | 4 | Daughter | — | Pennsylvania |
| 11 | William A. Cox | 25 | Head | Head Clerk | District of Columbia |
| 12 | Jessie M. Cox | 22 | Wife | — | Pennsylvania |
| 13 | Catherine E. Coates | 45 | Mother | — | Pennsylvania |
| 14 | Louis Coates | 49 | Step-father | Special Officer | Virginia |
| 15 | Stella Cornyn | 39 | Head | — | Pennsylvania |
| 16 | Anna Cornyn | 36 | Sister | Clerk | Pennsylvania |
| 17 | Loretta Cornyn | 29 | Sister | Operator | Pennsylvania |
| 18 | William A. Lougean | 55 | Head | Attendance Officer | Pennsylvania |
| 19 | Eva G. Ab. Lougean | 57 | Wife | Nurse | Pennsylvania |
| 20 | Robert C. Lougean | 21 | Son | Clerk | Pennsylvania |
| 21 | Robert P. Sr. Lougean | 50 | Head | Inspector | Pennsylvania |
| 22 | Jennie M. Lougean | 45 | Wife | — | Pennsylvania |
| 23 | Vera J. Lougean | 25 | Daughter | Stenographer | Pennsylvania |
| 24 | William Leonard THIS PERSON | 52 | Head | Motorman | Ohio |
| 25 | Mary Leonard | 46 | Wife | — | Pennsylvania |
| 26 | Charles F. Leonard | 25 | Son | Laborer | Pennsylvania |
| 27 | Edith M. Leonard | 23 | Daughter-in-law | Sales Lady | Pennsylvania |
| 28 | Joseph W. Brady | 42 | Head | Engineer | West Virginia |
| 29 | Gertrude Brady | 36 | Wife | — | Pennsylvania |
| 30 | Joseph W. Jr. Brady | 10 | Son | — | Pennsylvania |
| 31 | Barbara M. Brady | 7 | Daughter | — | Pennsylvania |
| 32 | Edward C. Brady | 3 | Son | — | Pennsylvania |
| 33 | John J. Cornyn | 53 | Head | Contractor | Pennsylvania |
| 34 | Margaret A. Cornyn | 46 | Wife | — | West Virginia |
| 35 | Marie R. Cornyn | 22 | Daughter | Stenographer | Pennsylvania |
| 36 | Margaret G. Cornyn | 20 | Daughter | Teacher | Pennsylvania |
| 37 | Florence L. Cornyn | 17 | Daughter | — | Pennsylvania |
| 38 | Eleanor R. Cornyn | 15 | Daughter | — | Pennsylvania |
| 39 | John J. Cornyn | 12 | Son | — | Pennsylvania |
| 40 | William Daugherty | 51 | Head | Landscape Gardener | Pennsylvania |
| 41 | Mary Daugherty | 55 | Wife | — | Irish Free State |
| 42 | Patrick J. Daugherty | 20 | Brother | Driver | Pennsylvania |
| 43 | Joseph A. Rossi | 28 | Head | Attorney | Pennsylvania |
| 44 | Mildred Rossi | 26 | Wife | — | Pennsylvania |
| 45 | William Rossi | 7 | Son | — | Pennsylvania |
| 46 | John Rossi | 3 | Son | — | Pennsylvania |
| 47 | Thomas Rossi | 24 | Brother | Salesman | Pennsylvania |
| 48 | Agnes Rossi | 24 | Sister-in-law | — | Pennsylvania |
| 49 | Thomas Jr. Rossi | 1 | Nephew | — | Pennsylvania |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)