JD
John Day — 1940 US Census Record
Model Tree available1940 United States Federal Census · Washington-County, Pennsylvania
Our Model Tree links this John Day across the 1920, 1930 and 1940 US Censuses in Washington-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Hugh & Anna — first a son (b.~1919), then head of a 7-person household.
Age 21
b. ~1919
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Pennsylvania |
| Surname | Day |
| Given Name | John C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Morris Township |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Morris Township |
| Est. Birth Year | ~1919 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Cleo Day | Daughter | — | 18 | ~1922 |
| Ruth Day | Daughter | — | 14 | ~1926 |
| John Day | Head | — | 48 | ~1892 |
| H Day | Son | — | 19 | ~1921 |
| John Day | Son | — | 21 | ~1919 |
| Giles Day | Son | — | 2 | ~1938 |
| Ruby Day | Spouse | — | 45 | ~1895 |
Census Appearances
1920
Washington, Pennsylvania
Son, age 1
Washington, Pennsylvania · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Day |
| Given Name | John M Jr |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Missouri |
| Occupation | none |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Washington, Pennsylvania
Son, age 11
Washington, Pennsylvania · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Day |
| Given Name | John M. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Washington-County, Pennsylvania
Son, age 21
Washington-County, Pennsylvania · implied b. ~1919 — 7 household members
| Surname | Day |
| Given Name | John C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Morris Township |
| 1935 Residence (County) | Washington |
| Highest Grade | Hs 2 |
| 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 Day across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Hugh Day (~0.83 confidence) and mother Anna Day (~0.83 confidence) and father John Day (~0.92 confidence) and mother Ruby Day (~0.92 confidence). The pedigree spans 2 generations with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.88
Father
Hugh Day
b. ~1854
Source father>father
● Household
· direct · ~0.83
Mother
Anna Day
b. ~1870
Source father>mother
● Household
· direct · ~0.83
Father
John Day
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Ruby Day
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Day
Son · 1940 · age 21 · b. ~1919 · Pennsylvania
★ You are viewing this record
Sibling
H Day
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Cleo Day
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Day
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Giles Day
Sibling · 1940 · age 2
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 — 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-t0627-03624-00610)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Shirley Ann Stockdale | 5 | Daughter | — | — |
| 2 | Goldie Jean Stockdale | 5 | Daughter | — | — |
| 3 | Jacqueline Stockdale | 4 | Daughter | — | — |
| 4 | Evelyn Stockdale | 33 | Daughter | — | Pennsylvania |
| 5 | Rose Flint | 50 | Hired Girl | Housekeeper | West Virginia |
| 6 | Asher Mcclain | 60 | Head | Farmer | Pennsylvania |
| 7 | Bessie Mcclain | 54 | Wife | — | Pennsylvania |
| 8 | Ruth Mcclain | 21 | Daughter | — | Pennsylvania |
| 9 | Charles M Sharp | 42 | Head | Pumper | Pennsylvania |
| 10 | Ella G Sharp | 40 | Wife | — | Pennsylvania |
| 11 | Grace E Sharp | 20 | Daughter | — | Pennsylvania |
| 12 | Kenneth D Sharp | 18 | Son | — | Pennsylvania |
| 13 | H Leslie Sharp | 12 | Son | — | Pennsylvania |
| 14 | Henrietta Jean Sharp | 9 | Daughter | — | Pennsylvania |
| 15 | William E Plants | 30 | Head | Mechanic | Pennsylvania |
| 16 | Evelyn M Plants | 23 | Wife | — | Colorado |
| 17 | Helen Plants | 5 | Daughter | — | — |
| 18 | Patricia Ann Plants | 2 | Daughter | — | — |
| 19 | Keith Plants | 28 | Brother | Laborer | Pennsylvania |
| 20 | John M Day | 48 | Head | Truck Driver | Pennsylvania |
| 21 | Ruby C Day | 45 | Wife | — | Missouri |
| 22 | John C Day THIS PERSON | 21 | Son | — | Pennsylvania |
| 23 | H Ashley Day | 19 | Son | Laborer | Pennsylvania |
| 24 | Cleo Day | 18 | Daughter | — | Pennsylvania |
| 25 | Ruth Day | 14 | Daughter | — | Pennsylvania |
| 26 | Giles Day | 2 | Son | — | — |
| 27 | J C Grimes | 62 | Head | Farmer | Pennsylvania |
| 28 | Maud Prewitt | 50 | Housekeeper | Housekeeper | West Virginia |
| 29 | Charles (R) Sharp | 47 | Head | Laborer | West Virginia |
| 30 | Lena Sharp | 38 | Wife | — | Pennsylvania |
| 31 | Thelma Sharp | 17 | Daughter | — | Pennsylvania |
| 32 | Linsey Sharp | 15 | Son | — | Pennsylvania |
| 33 | John Sharp | 12 | Son | — | Pennsylvania |
| 34 | Kenneth Piatt | 5 | Nephew | — | — |
| 35 | Miller D Strawn | 24 | Head | Laborer | Pennsylvania |
| 36 | Ruth Strawn | 22 | Wife | — | Pennsylvania |
| 37 | Betty Jane Strawn | 6 | Daughter | — | Pennsylvania |
| 38 | Kathryn Strawn | 2 | Daughter | — | — |
| 39 | Harold L Tonner | 24 | Head | Furnace Maker | Pennsylvania |
| 40 | Dora Tonner | 53 | Wife | — | Pennsylvania |
Related Census Records
Pedigree Summary
John + 4 siblings
Gen 1 · 2 parents
~0.92
Gen 2 · 2 grandparents
~0.83
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)