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William Kirby — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Luzerne-County, Pennsylvania
Our Model Tree links this William Kirby across the 1920, 1930 and 1940 US Censuses in Luzerne-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1870), then head of a 3-person household.
Age 70
b. ~1870
Male
Head
Born: Wales
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Luzerne-County, Pennsylvania |
| Surname | Kirby |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 70 |
| Marital Status | Married |
| Birthplace | Wales |
| 1935 Residence (City) | Forty Fort Borough |
| 1935 Residence (County) | Luzerne |
| Naturalization Status | Naturalized |
| Additional Details | |
| Industry | U |
| Highest Grade | 0 |
| 1935 Residence | Same House |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
| Township / Ward | Forty Fort Borough |
| Est. Birth Year | ~1870 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Margaret Kirby | Spouse | — | 68 | ~1872 |
| William Kirby | Head | — | 70 | ~1870 |
| Alma Kirby | Daughter | — | 29 | ~1911 |
Census Appearances
1920
Luzerne, Pennsylvania
Head, age 50
Luzerne, Pennsylvania · implied b. ~1870 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kirby |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Wales |
| Year of Immigration | 1880 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Occupation | Miner |
| Industry | Coal Mines |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Mother Tongue | Welsh |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth Country | Wales |
| Year of Naturalization | 1880 |
| Birthplace (normalized) | wales |
1930
Luzerne, Pennsylvania
Head, age 59
Luzerne, Pennsylvania · implied b. ~1871 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kirby |
| Given Name | William J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Wales |
| Naturalization Status | Naturalized |
| Year of Immigration | 1884 |
| Age at First Marriage | 30 |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Occupation | Laborer |
| Industry | Coal Mining |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 5000 |
| Radio Set | R |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
1940
Luzerne-County, Pennsylvania
Head, age 70
Luzerne-County, Pennsylvania · implied b. ~1870 — 3 household members
| Surname | Kirby |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 70 |
| Marital Status | Married |
| Birthplace | Wales |
| 1935 Residence (City) | Forty Fort Borough |
| 1935 Residence (County) | Luzerne |
| Naturalization Status | Naturalized |
| Industry | U |
| Highest Grade | 0 |
| 1935 Residence | Same House |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
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 Kirby across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Kirby
Head · 1940 · age 70 · b. ~1870 · Pennsylvania
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Luzerne-County, Pennsylvania
Open full size
1940 US Federal Census — Luzerne-County, Pennsylvania
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03551-00257)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph Ward | 49 | Head | Odd Jobs | Pennsylvania |
| 2 | Cindy Ward | 46 | Wife | — | England |
| 3 | Elizabeth Ward | 21 | Daughter | Trained Nurse | Connecticut |
| 4 | Robert Thompson | 43 | Head | Manager Gas Station | Pennsylvania |
| 5 | Louise Thompson | 43 | Wife | — | England |
| 6 | Carol Thompson | 5 | Daughter | — | Pennsylvania |
| 7 | Eleanor Bourne | 38 | Lodger | Cashier | England |
| 8 | Richard Jenkins | 27 | Head | Clerk | Pennsylvania |
| 9 | Ruth Jenkins | 25 | Wife | — | Pennsylvania |
| 10 | James Thomas | 34 | Head | Mechanic | Pennsylvania |
| 11 | Louise Thomas | 34 | Wife | — | Pennsylvania |
| 12 | Alfred V. Gray | 70 | Head | — | Pennsylvania |
| 13 | Katherine Gray | 61 | Wife | — | Pennsylvania |
| 14 | Katherine Gray | 25 | Daughter | Stenographer | Pennsylvania |
| 15 | Xavier Abbott | 27 | Lodger | Life Insurance | Pennsylvania |
| 16 | Andrew Shara | 35 | Lodger | Electric Welder | Pennsylvania |
| 17 | John Tumminello | 55 | Head | Foreman | Italy |
| 18 | Nancy Tumminello | 53 | Wife | — | Italy |
| 19 | Peter Tumminello | 22 | Daughter | Bookkeeper | New York |
| 20 | Angeline Tumminello | 21 | Daughter | Seamstress | New York |
| 21 | Josephine Tumminello | 9 | Daughter | — | New York |
| 22 | William Kirby THIS PERSON | 70 | Head | — | Wales |
| 23 | Margaret Kirby | 68 | Wife | — | England |
| 24 | Alma Kirby | 29 | Daughter | Seamstress | Pennsylvania |
| 25 | Edward King | 72 | Head | Laborer | Pennsylvania |
| 26 | Agnes King | 69 | Wife | — | Pennsylvania |
| 27 | Frank Viego | 28 | Head | Foreman | New York |
| 28 | Isoletta Viego | 26 | Wife | — | New York |
| 29 | Carmela Viego | 4 | Daughter | — | Pennsylvania |
| 30 | Gemma Viego | 1 | Daughter | — | Pennsylvania |
| 31 | Carmelo Viego | 14 | Brother | — | New York |
| 32 | Louis Yemorany | 27 | Head | Laborer | Pennsylvania |
| 33 | Minnie Yemorany | 26 | Wife | — | Pennsylvania |
| 34 | Frederick Yemorany | 9 | Son | — | Pennsylvania |
| 35 | Louis Yemorany | 7 | Son | — | Pennsylvania |
| 36 | Alfred Yemorany | 5 | Son | — | Pennsylvania |
| 37 | Henry Yemorany | 3 | Son | — | Pennsylvania |
| 38 | Kenneth Yemorany | 1 | Son | — | Pennsylvania |
| 39 | Franklin Yemorany | 0 | Son | — | 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)