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William Boyle — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Leavenworth-County, Kansas
Our Model Tree links this William Boyle across the 1930 and 1940 US Censuses in Leavenworth-County, Kansas (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 10-person household.
Age 12
b. ~1928
Male
Son
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Leavenworth-County, Kansas |
| Surname | Boyle |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | LEAVENWORTH CITY |
| 1935 Residence (County) | LEAVENWORTH |
| Additional Details | |
| Highest Grade | Yes G6 |
| 1935 Residence | Same house |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Township / Ward | Leavenworth City |
| Est. Birth Year | ~1928 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Charles Boyle | Son | — | 16 | ~1924 |
| Josephine Boyle | Daughter | — | 20 | ~1920 |
| Louis Boyle | Son | — | 18 | ~1922 |
| Patrick Boyle | Son | — | 8 | ~1932 |
| Raymond Boyle | Son | — | 22 | ~1918 |
| Mary Boyle | Daughter | — | 9 | ~1931 |
| Peter Boyle | Son | — | 14 | ~1926 |
| William Boyle | Son | — | 12 | ~1928 |
| Elizabeth Boyle | Spouse | — | 50 | ~1890 |
| Mitchell Boyle | Head | — | 55 | ~1885 |
Census Appearances
1930
Leavenworth, Kansas
Son, age 2
Leavenworth, Kansas · implied b. ~1928 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Boyle |
| Given Name | William F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Kansas |
| Occupation | none |
| Veteran | No |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Leavenworth-County, Kansas
Son, age 12
Leavenworth-County, Kansas · implied b. ~1928 — 10 household members
| Surname | Boyle |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | LEAVENWORTH CITY |
| 1935 Residence (County) | LEAVENWORTH |
| Highest Grade | Yes G6 |
| 1935 Residence | Same house |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 12 · b. ~1928 · Kansas
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Sibling
Peter Boyle
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patrick Boyle
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Boyle
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louis Boyle
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Josephine Boyle
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Boyle
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Boyle
Sibling · 1940 · age 9
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 — Leavenworth-County, Kansas
Open full size
1940 US Federal Census — Leavenworth-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01240-00829)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Dora Leavitt | 32 | Wife | — | Missouri |
| 2 | Lillian Martin | 12 | Step daughter | — | Missouri |
| 3 | Wilford Martin | 7 | Step son | — | Missouri |
| 4 | Lilly Berry | 43 | Sister-in-law | — | Missouri |
| 5 | George Blochberger | 43 | Head | — | Kansas |
| 6 | John Harris | 50 | Head | Laborer | Missouri |
| 7 | Wilford Harris | 14 | Son | — | Missouri |
| 8 | Richard Harris | 13 | Son | — | Missouri |
| 9 | Betty Harris | 11 | Daughter | — | Missouri |
| 10 | Florence Harris | 9 | Daughter | — | Missouri |
| 11 | Sarie Harris | 7 | Daughter | — | Missouri |
| 12 | Joseph Morrison | 28 | Head | Painter | Kansas |
| 13 | Lucille Morrison | 24 | Wife | — | Kansas |
| 14 | William C. White | 30 | Head | Seargent | Arkansas |
| 15 | Verna White | 28 | Wife | — | South Dakota |
| 16 | James White | 8 | Son | — | Kansas |
| 17 | John White | 6 | Son | — | Kansas |
| 18 | Mitchell L. Boyle | 55 | Head | Laborer | Michigan |
| 19 | Elizabeth Boyle | 50 | Wife | — | Kansas |
| 20 | Raymond Boyle | 22 | Son | Laborer | Montana |
| 21 | Josephine Boyle | 20 | Daughter | Maid | Montana |
| 22 | Louis Boyle | 18 | Son | Bottler | Kansas |
| 23 | Charles Boyle | 16 | Son | New Worker | Kansas |
| 24 | Peter Boyle | 14 | Son | — | Kansas |
| 25 | William Boyle THIS PERSON | 12 | Son | — | Kansas |
| 26 | Mary E. Boyle | 9 | Daughter | — | Kansas |
| 27 | Patrick Boyle | 8 | Son | — | Kansas |
| 28 | Mike Guariniello | 40 | Head | Sargent | Italy |
| 29 | Bessie Guariniello | 26 | Wife | — | Kansas |
| 30 | Helen Guariniello | 11 | Daughter | — | Same place |
| 31 | Bonnie Guariniello | 6 | Daughter | — | Missouri |
| 32 | June Guariniello | 4 | Daughter | — | Missouri |
| 33 | Lottie Gentry | 55 | Head | — | Georgia |
| 34 | Palantha Leftige | 27 | Lodger | Maid | Missouri |
| 35 | Frederick Foster | 12 | Lodger | — | Kansas |
| 36 | Charles Crowley | 30 | Head | Truck Driver | Kansas |
| 37 | Mary Crowley | 30 | Wife | — | Kansas |
| 38 | Charlotte Crowley | 8 | Daughter | — | Kansas |
| 39 | Bertha Grobe | 64 | Head | — | Germany |
| 40 | John Miller | 42 | Head | Guard | North Carolina |
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)