WD
William Day — 1940 US Census Record
Model Tree available1940 United States Federal Census · Washington-County, Pennsylvania
Our Model Tree links this William Day across the 1920, 1930 and 1940 US Censuses in Washington-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents William & Iva — first a head (b.~1911), then head of a 3-person household.
Age 29
b. ~1911
Male
Head
Born: PENNSYLVANIA
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Pennsylvania |
| Surname | DAY |
| Given Name | WILLIAM |
| Relationship to Head | HEAD |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | PENNSYLVANIA |
| 1935 Residence (City) | VICTORY-HILL |
| 1935 Residence (County) | WASHINGTON |
| Additional Details | |
| Occupation | CHIPPER |
| Industry | STEEL-MILL |
| Class of Worker | PW |
| Hours Worked | 18 |
| Income (1939) | 650 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Chipper |
| Township / Ward | Victoryhill |
| Est. Birth Year | ~1911 |
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 |
|---|---|---|---|---|
| Linda Day | Daughter | — | 2 | ~1938 |
| William Day | Head | — | 29 | ~1911 |
| Ida Day | Spouse | — | 20 | ~1920 |
Census Appearances
1920
Washington, Pennsylvania
Son, age 7
Washington, Pennsylvania · implied b. ~1913 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Day |
| Given Name | William H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Washington, Pennsylvania
Son, age 18
Washington, Pennsylvania · implied b. ~1912 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Day |
| Given Name | William L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| 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
Washington-County, Pennsylvania
Head, age 29
Washington-County, Pennsylvania · implied b. ~1911 — 3 household members
| Surname | DAY |
| Given Name | WILLIAM |
| Relationship to Head | HEAD |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | PENNSYLVANIA |
| 1935 Residence (City) | VICTORY-HILL |
| 1935 Residence (County) | WASHINGTON |
| Occupation | CHIPPER |
| Industry | STEEL-MILL |
| Class of Worker | PW |
| Hours Worked | 18 |
| Income (1939) | 650 |
| 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 William Day across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Day (~0.92 confidence) and mother Iva Day (~0.92 confidence) and father Samuel Day (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Day
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Iva Day
b. ~1883
Source mother
● Household
· direct · ~0.92
Father
Samuel Day
b. ~1885
Source father
● Household
· direct · ~0.92
This person
Anchor record
William Day
Head · 1940 · age 29 · b. ~1911 · Pennsylvania
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Washington-County, Pennsylvania
Open full size
1940 US Federal Census — Washington-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03621-00009)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ronald Bozik | 1 | SON | — | PENNSYLVANIA |
| 2 | Louis Pellegrini | 42 | HEAD | Pipe-Fitter | ITALY |
| 3 | Pearl Pellegrini | 41 | WIFE | — | PENNSYLVANIA |
| 4 | Evelyn Pellegrini | 16 | DAUGHTER | — | PENNSYLVANIA |
| 5 | Joseph Pellegrini | 14 | SON | — | PENNSYLVANIA |
| 6 | Dolores Pellegrini | 12 | DAUGHTER | — | PENNSYLVANIA |
| 7 | Virginia Pellegrini | 9 | DAUGHTER | — | PENNSYLVANIA |
| 8 | Laura Pellegrini | 7 | DAUGHTER | — | PENNSYLVANIA |
| 9 | Clarine Pellegrini | 2 | DAUGHTER | — | PENNSYLVANIA |
| 10 | Virginia Pellegrini | 66 | MOTHER | — | ITALY |
| 11 | Joseph Cooper | 63 | HEAD | Coal-Loader | AUSTRIA |
| 12 | Mary Cooper | 53 | WIFE | — | AUSTRIA |
| 13 | Robert Cooper | 15 | SON | — | PENNSYLVANIA |
| 14 | William J. Secane | 48 | HEAD | Laborer | PENNSYLVANIA |
| 15 | Russell Dudro | 44 | HEAD | Millwright | PENNSYLVANIA |
| 16 | Rose A Dudro | 38 | WIFE | — | PENNSYLVANIA |
| 17 | Harry Dudro | 19 | SON | Laborer | PENNSYLVANIA |
| 18 | Tillie Dudro | 18 | DAUGHTER | New-Worker | PENNSYLVANIA |
| 19 | Lance Shaw | 28 | HEAD | Auto-Salesman | PENNSYLVANIA |
| 20 | Florie Shaw | 25 | WIFE | — | PENNSYLVANIA |
| 21 | Larry Shaw | 1 | SON | — | PENNSYLVANIA |
| 22 | Anna Miller | 52 | MOTHER-IN-LAW | — | PENNSYLVANIA |
| 23 | Burdyne|Burdyne Allered | 36 | HEAD | Brake-Man | PENNSYLVANIA |
| 24 | Elizabeth Allered | 33 | WIFE | — | PENNSYLVANIA |
| 25 | Allered Sr Allered | 12 | SON | — | PENNSYLVANIA |
| 26 | Maratha A Allered | 10 | DAUGHTER | — | PENNSYLVANIA |
| 27 | Caraline Allered | 7 | DAUGHTER | — | PENNSYLVANIA |
| 28 | Ina B Allered | 5 | DAUGHTER | — | PENNSYLVANIA |
| 29 | Maryln Allered | 3 | DAUGHTER | — | PENNSYLVANIA |
| 30 | Gary Allered | 0 | SON | — | PENNSYLVANIA |
| 31 | William Day THIS PERSON | 29 | HEAD | Chipper | PENNSYLVANIA |
| 32 | Ida M Day | 20 | WIFE | — | PENNSYLVANIA |
| 33 | Linda L Day | 2 | DAUGHTER | — | PENNSYLVANIA |
| 34 | Lenard Tomlinson | 43 | HEAD | Proprieter | PENNSYLVANIA |
| 35 | Hazel Tomlinson | 37 | WIFE | — | PENNSYLVANIA |
| 36 | Ruth Tomlinson | 15 | DAUGHTER | — | PENNSYLVANIA |
| 37 | Martha Tomlinson | 14 | DAUGHTER | — | PENNSYLVANIA |
| 38 | Virginia Tomlinson | 9 | DAUGHTER | — | PENNSYLVANIA |
| 39 | Betsy A Tomlinson | 3 | DAUGHTER | — | PENNSYLVANIA |
| 40 | Joseph Tomlinson | 81 | FATHER | — | ENGLAND |
Pedigree Summary
William
Gen 1 · 3 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)