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John Boyle — 1940 US Census Record
Model Tree available1940 United States Federal Census · Northumberland-County, Pennsylvania
Our Model Tree links this John Boyle across the 1920, 1930 and 1940 US Censuses in Northumberland-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Mary & Mary — first a son (b.~1914), then head of a 3-person household.
Age 26
b. ~1914
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Northumberland-County, Pennsylvania |
| Surname | Boyle |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Mt Carmel Twp. |
| 1935 Residence (County) | Northumberland |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Mt Carmel Twp |
| Est. Birth Year | ~1914 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Grace Boyle | Daughter | — | 15 | ~1925 |
| Mary Boyle | Head | — | 63 | ~1877 |
| John Boyle | Son | — | 26 | ~1914 |
Census Appearances
1920
Northumberland, Pennsylvania
Son, age 6
Northumberland, Pennsylvania · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Boyle |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Northumberland, Pennsylvania
Son, age 16
Northumberland, Pennsylvania · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Boyle |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Northumberland-County, Pennsylvania
Son, age 26
Northumberland-County, Pennsylvania · implied b. ~1914 — 3 household members
| Surname | Boyle |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Mt Carmel Twp. |
| 1935 Residence (County) | Northumberland |
| Highest Grade | No 8 |
| 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 John Boyle across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Boyle (~0.92 confidence) and mother Mary Boyle (~0.92 confidence) and mother Mary Boyle (~0.92 confidence) and father Roger Boyle (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Boyle
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Mary Boyle
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Mary Boyle
b. ~1879
Source mother
● Household
· direct · ~0.92
Father
Roger Boyle
b. ~1879
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Boyle
Son · 1940 · age 26 · b. ~1914 · Pennsylvania
★ You are viewing this record
Sibling
Grace Boyle
Sibling · 1940 · age 15
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 — Northumberland-County, Pennsylvania
Open full size
1940 US Federal Census — Northumberland-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03597-00110)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Schu Agnes Schu | 8 | daughter | — | Pennsylvania |
| 42 | James Earley | 57 | head | Justice Of Peace | Pennsylvania |
| 43 | Carrie Earley | 52 | wife | — | Pennsylvania |
| 44 | Mary Earley | 19 | daughter | — | Pennsylvania |
| 45 | August Metzinger | 50 | head | Miner | Pennsylvania |
| 46 | Jean Metzinger | 47 | wife | — | Pennsylvania |
| 47 | Anna Metzinger | 23 | daughter | — | Pennsylvania |
| 48 | Dorothy Metzinger | 18 | daughter | — | Pennsylvania |
| 49 | Robert Metzinger | 14 | son | — | Pennsylvania |
| 50 | Teresa Metzinger | 9 | daughter | — | Pennsylvania |
| 51 | Margaret Whalen | 70 | head | — | Pennsylvania |
| 52 | William Whalen | 15 | nephew | — | Pennsylvania |
| 53 | Mary Boyle | 63 | head | — | Pennsylvania |
| 54 | John Boyle THIS PERSON | 26 | son | — | Pennsylvania |
| 55 | Grace Boyle | 15 | daughter | — | Pennsylvania |
| 56 | Frank Publick | 37 | head | Miner | Pennsylvania |
| 57 | Elizabeth Publick | 34 | wife | — | Pennsylvania |
| 58 | Francis Publick | 14 | son | — | Pennsylvania |
| 59 | Anna Publick | 12 | daughter | — | Pennsylvania |
| 60 | Mary Publick | 10 | daughter | — | Pennsylvania |
| 61 | Elizabeth Publick | 9 | daughter | — | Pennsylvania |
| 62 | Eleonore Publick | 8 | daughter | — | Pennsylvania |
| 63 | Joseph Publick | 7 | son | — | Pennsylvania |
| 64 | James Publick | 6 | son | — | Pennsylvania |
| 65 | Thomas Publick | 0 | son | — | Pennsylvania |
| 66 | James Moran | 36 | head | Engineer | Pennsylvania |
| 67 | Anna Moran | 32 | wife | — | Pennsylvania |
| 68 | Lambert Roche | 38 | boarder | Miner | Pennsylvania |
| 69 | James Dormer | 66 | head | — | Pennsylvania |
| 70 | Elizabeth Dormer | 64 | wife | — | Pennsylvania |
| 71 | Nick Moyer | 36 | son-in-law | Laborer | Pennsylvania |
| 72 | Vera Moyer | 29 | daughter | — | Pennsylvania |
| 73 | Ronald Moyer | 5 | son | — | Pennsylvania |
| 74 | John Hogan | 30 | head | Teacher | Pennsylvania |
| 75 | Anna Hogan | 29 | wife | — | Pennsylvania |
| 76 | Julianne Hogan | 4 | daughter | — | Pennsylvania |
| 77 | Mary Elizabeth Hogan | 2 | daughter | — | Pennsylvania |
| 78 | Leon Higgins | 48 | head | Painter | New Jersey |
| 79 | Margaret Higgins | 48 | wife | — | Pennsylvania |
| 80 | Leon Higgins | 20 | son | — | Pennsylvania |
Pedigree Summary
John + 1 sibling
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)