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William Boyle — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this William Boyle across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 13-person household.
Age 15
b. ~1925
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Boyle |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh City |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H 1 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1925 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Leo Boyle | Other | — | 20 | ~1920 |
| Thomas Boyle | Son | — | 11 | ~1929 |
| William Boyle | Son | — | 15 | ~1925 |
| Frank Boyle | Son | — | 16 | ~1924 |
| Alice Boyle | Daughter | — | 13 | ~1927 |
| James Boyle | Son | — | 8 | ~1932 |
| Dolores Boyle | Daughter | — | 3 | ~1937 |
| Mary Boyle | Daughter | — | 10 | ~1930 |
| Mary Boyle | Spouse | — | 37 | ~1903 |
| Frank Boyle | Other | — | 65 | ~1875 |
| Frank Boyle | Head | — | 41 | ~1899 |
| James Boyle | Other | — | 25 | ~1915 |
| Ralph Boyle | Son | — | 6 | ~1934 |
Census Appearances
1930
Allegheny, Pennsylvania
Son, age 5
Allegheny, Pennsylvania · implied b. ~1925 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Boyle |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 15
Allegheny-County, Pennsylvania · implied b. ~1925 — 13 household members
| Surname | Boyle |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh City |
| 1935 Residence (County) | Allegheny |
| Income (1939) | 0 |
| Highest Grade | H 1 |
| 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 William Boyle across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Boyle
Son · 1940 · age 15 · b. ~1925 · Pennsylvania
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Sibling
Mary Boyle
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Boyle
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Boyle
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ralph Boyle
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Boyle
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Boyle
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dolores Boyle
Sibling · 1940 · age 3
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
1940 US Federal Census — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03669-00069)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles Kline | 61 | Head | Piano Salesman | Ohio |
| 2 | Nettie Kline | 61 | Wife | — | Ohio |
| 3 | John Piccone | 27 | Head | Butcher | Pennsylvania |
| 4 | Mary Piccone | 27 | Wife | — | Pennsylvania |
| 5 | Helen Anne Piccone | 2 | Daughter | — | Pennsylvania |
| 6 | Matilda C. Lutz | 56 | Head | — | Pennsylvania |
| 7 | Stephen Lutz | 19 | Son | Clerk | Pennsylvania |
| 8 | George Daugherty | 47 | Head | Druggist | Pennsylvania |
| 9 | Annie S. Daugherty | 36 | Wife | — | Germany |
| 10 | Geneva S. Mountrey | 52 | Head | — | Pennsylvania |
| 11 | Florence Mountrey | 31 | Daughter | Order Clerk | Pennsylvania |
| 12 | Irene Mountrey | 27 | Daughter | Order Clerk | Pennsylvania |
| 13 | Frank W. Sr. Boyle | 41 | Head | Steam Fitter | Pennsylvania |
| 14 | Mary A. Boyle | 37 | Wife | — | Pennsylvania |
| 15 | Frank W. Jr. Boyle | 16 | Son | — | Pennsylvania |
| 16 | William Boyle THIS PERSON | 15 | Son | — | Pennsylvania |
| 17 | Alice Boyle | 13 | Daughter | — | Pennsylvania |
| 18 | Thomas Boyle | 11 | Son | — | Pennsylvania |
| 19 | Mary Boyle | 10 | Daughter | — | Pennsylvania |
| 20 | James Boyle | 8 | Son | — | Pennsylvania |
| 21 | Ralph Boyle | 6 | Son | — | Pennsylvania |
| 22 | Dolores Boyle | 3 | Daughter | — | Pennsylvania |
| 23 | Frank W. Boyle | 65 | Father | General Laborer | Ohio |
| 24 | James Boyle | 25 | Brother | Stock Clerk | Pennsylvania |
| 25 | Leo Boyle | 20 | Brother | Newworker | Pennsylvania |
| 26 | Margaret Dunbar | 69 | Head | — | Ireland |
| 27 | Clair Elizabeth Dunbar | 41 | Lodger | — | Pennsylvania |
| 28 | Thomas S. Brown | 64 | Head | — | Virginia |
| 29 | Ada Brown | 54 | Wife | Janitor | Maryland |
| 30 | Burrell Reed | 39 | Grandson | Janitor | Virginia |
| 31 | Deadora Reed | 34 | Daughter-in-law | — | Pennsylvania |
| 32 | Yvonne Reed | 11 | Granddaughter | — | Pennsylvania |
| 33 | Fred Manning | 53 | Head | Machinist | Germany |
| 34 | Wilhelmina Manning | 53 | Wife | — | Germany |
| 35 | Wilhelmina Manning | 20 | Daughter | — | Germany |
| 36 | Ross Lusciano | 55 | Head | General Laborer | Italy |
| 37 | Victoria Lusciano | 54 | Wife | — | Italy |
| 38 | Mary S. Lusciano | 16 | Daughter | — | Pennsylvania |
| 39 | Angeline Lusciano | 12 | Daughter | — | Pennsylvania |
| 40 | Melvin S. Emerick | 27 | Head | Painter | Pennsylvania |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)