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John Kirby — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Schuylkill-County, Pennsylvania
Our Model Tree links this John Kirby across the 1930 and 1940 US Censuses in Schuylkill-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 8-person household.
Age 14
b. ~1926
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Schuylkill-County, Pennsylvania |
| Surname | Kirby |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Gilberton Borough |
| 1935 Residence (County) | Schuylkill |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Gilberton Borough |
| Est. Birth Year | ~1926 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Kirby | Head | — | 51 | ~1889 |
| Andrew Kirby | Son | — | 2 | ~1938 |
| Catherine Kirby | Spouse | — | 43 | ~1897 |
| Mary Kirby | Daughter | — | 13 | ~1927 |
| Hannah Kirby | Daughter | — | 8 | ~1932 |
| John Kirby | Son | — | 14 | ~1926 |
| Joseph Kirby | Son | — | 6 | ~1934 |
| Ann Kirby | Daughter | — | 10 | ~1930 |
Census Appearances
1930
Schuylkill, Pennsylvania
Son, age 4
Schuylkill, Pennsylvania · implied b. ~1926 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kirby |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Schuylkill-County, Pennsylvania
Son, age 14
Schuylkill-County, Pennsylvania · implied b. ~1926 — 8 household members
| Surname | Kirby |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Gilberton Borough |
| 1935 Residence (County) | Schuylkill |
| Highest Grade | No 7 |
| 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 Kirby across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Kirby
Son · 1940 · age 14 · b. ~1926 · Pennsylvania
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Sibling
Hannah Kirby
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Kirby
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Andrew Kirby
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ann Kirby
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Kirby
Sibling · 1940 · age 6
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 — Schuylkill-County, Pennsylvania
Open full size
1940 US Federal Census — Schuylkill-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03602-00402)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Brehony | 70 | Head | — | Penna |
| 2 | Stella Brehony | 60 | Wife | — | Penna |
| 3 | John Meade | 70 | Head | — | Pennsylvania |
| 4 | Anna Meade | 59 | Wife | — | Pennsylvania |
| 5 | Marcella Meade | 31 | Daughter | — | Pennsylvania |
| 6 | John Francis Meade | 27 | Son | — | Pennsylvania |
| 7 | Anna Meade | 23 | Daughter | — | Pennsylvania |
| 8 | Claire Meade | 21 | Daughter | — | Pennsylvania |
| 9 | Joseph Collins | 45 | Head | Laborer | Penna |
| 10 | Isabel Collins | 43 | Wife | — | Penna |
| 11 | Kenneth Collins | 14 | Son | — | Penna |
| 12 | Thomas Collins | 13 | Son | — | Penna |
| 13 | Edward Collins | 10 | Son | — | Penna |
| 14 | Eugene Collins | 4 | Son | — | Penna |
| 15 | John Kirby | 51 | Head | Banker | Pennsylvania |
| 16 | Catherine Kirby | 43 | Wife | — | Pennsylvania |
| 17 | John Kirby THIS PERSON | 14 | Son | — | Pennsylvania |
| 18 | Mary Lou Kirby | 13 | Daughter | — | Pennsylvania |
| 19 | Ann Kirby | 10 | Daughter | — | Pennsylvania |
| 20 | Hannah Kirby | 8 | Daughter | — | Pennsylvania |
| 21 | Joseph Kirby | 6 | Son | — | Pennsylvania |
| 22 | Andrew Kirby | 2 | Son | — | Pennsylvania |
| 23 | Charles Maver | 61 | Head | Merchant | Penna |
| 24 | Preston Helen Maver | 59 | Sister | — | Penna |
| 25 | David Griffin | 68 | Head | — | Pennsylvania |
| 26 | Ella Griffin | 38 | Daughter | — | Pennsylvania |
| 27 | Owen Griffin | 32 | Son | Machinist | Pennsylvania |
| 28 | Dolores Griffin | 27 | Daughter | Teacher | Pennsylvania |
| 29 | William Meade | 24 | Head | Machinist | Pennsylvania |
| 30 | Rita Meade | 23 | Wife | — | Pennsylvania |
| 31 | William Meade | 2 | Son | — | Pennsylvania |
| 32 | Alice Walsh | 41 | Head | — | Pennsylvania |
| 33 | Martin Walsh | 11 | Son | — | Pennsylvania |
| 34 | Margaret Walsh | 8 | Daughter | — | Pennsylvania |
| 35 | James Kirby | 48 | Head | Stationary Eng. | Pennsylvania |
| 36 | Margaret Kirby | 47 | Wife | — | Pennsylvania |
| 37 | John Kirby | 21 | Son | Laborer | Pennsylvania |
| 38 | Thomas Kirby | 19 | Son | New Worker | Pennsylvania |
| 39 | Catherine Kirby | 17 | Daughter | — | Pennsylvania |
| 40 | Margaret Kirby | 14 | Daughter | — | 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)