JD
John Day — 1940 US Census Record
Model Tree available1940 United States Federal Census · New-York-County, New York
Our Model Tree links this John Day across the 1920, 1930 and 1940 US Censuses in New-York-County, New York (XGBoost, ~Confirmed), with identified parents John & Margaret — first a son (b.~1908), then head of a 4-person household.
Age 32
b. ~1908
Male
Son
Born: New York
Divorced
1940 Census Record Details
| Census Year | 1940 |
| Location | New-York-County, New York |
| Surname | Day |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Divorced |
| Birthplace | New York |
| 1935 Residence (City) | New York |
| 1935 Residence (County) | New York |
| Additional Details | |
| Class of Worker | No |
| Hours Worked | 0 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | New York |
| Est. Birth Year | ~1908 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Day | Head | — | 77 | ~1863 |
| David Day | Son | — | 31 | ~1909 |
| John Day | Son | — | 32 | ~1908 |
| Margaret Day | Spouse | — | 75 | ~1865 |
Census Appearances
1920
New York, …
Son, age 10
New York, New York · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Day |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
New York, …
Son, age 21
New York, New York · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Day |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Helper |
| Industry | Shipping |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
New-York-County, New …
Son, age 32
New-York-County, New York · implied b. ~1908 — 4 household members
| Surname | Day |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Divorced |
| Birthplace | New York |
| 1935 Residence (City) | New York |
| 1935 Residence (County) | New York |
| Class of Worker | No |
| Hours Worked | 0 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 John Day (~0.92 confidence) and mother Margaret Day (~0.92 confidence) and father Thomas Day (~0.92 confidence) and mother Kate Day (~0.92 confidence) and mother Mary Day (~0.92 confidence) and father John Day (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Day
b. ~1863
Source father
● Household
· direct · ~0.92
Mother
Margaret Day
b. ~1865
Source mother
● Household
· direct · ~0.92
Father
Thomas Day
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Kate Day
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Mary Day
b. ~1885
Source mother
● Household
· direct · ~0.92
Father
John Day
b. ~1886
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Day
Son · 1940 · age 32 · b. ~1908 · New York
★ You are viewing this record
Sibling
David Day
Sibling · 1940 · age 31
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 — New-York-County, New York
Open full size
1940 US Federal Census — New-York-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02647-00782)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Patrick Kelly | 57 | Head | Workchecker | Eire |
| 2 | Katherine Kelly | 45 | Wife | — | Eire |
| 3 | Martin Kelly | 10 | Son | — | New York |
| 4 | Joseph Lussmeyer | 41 | Head | Wire Walker | Germany |
| 5 | Theresa Dudenhoffer | 39 | Lodger | Homework | Austria |
| 6 | William Cadell | 60 | Head | Odd Jobs | Eire |
| 7 | Josephine Cadell | 50 | Wife | — | Eire |
| 8 | Thomas Claskey | 39 | Head | Bldg Service | England |
| 9 | Margaret Claskey | 40 | Wife | — | England |
| 10 | John Claskey | 11 | Son | — | New York |
| 11 | James Wall | 41 | Head | Trackman | Eire |
| 12 | Lucilla Wall | 36 | Wife | — | England |
| 13 | James Wall | 5 | Son | — | New York |
| 14 | Helen Wall | 3 | Daughter | — | New York |
| 15 | Madeline Vorburger | 62 | Head | — | Germany |
| 16 | Maude Eaton | 66 | Head | — | New York |
| 17 | Eva Eaton | 63 | Sister | Clerical Work | New York |
| 18 | Mary V Keenan | 52 | Head | Nurse | New York |
| 19 | James Farrell | 50 | Head | Odd Jobs | Eire |
| 20 | Julia Farrell | 47 | Wife | Chambermaid | Eire |
| 21 | Thomas Farrell | 18 | Son | — | New York |
| 22 | Mauro De Leo | 37 | Head | Barber | Italy |
| 23 | Ida De Leo | 38 | Wife | Housework | Massachusetts |
| 24 | Margaret Morin | 74 | Mother-in-law | — | Canada-French |
| 25 | William Kennedy | 52 | Head | Truck Driver | New York |
| 26 | Lillian Kennedy | 49 | Wife | — | New York |
| 27 | Walter Kennedy | 22 | Son | Typing-Steno | New York |
| 28 | Irene Kennedy | 14 | Daughter | — | New York |
| 29 | Mary T Meagher | 70 | Head | — | New York |
| 30 | John E Meagher | 45 | Son | 207 | New York |
| 31 | Albert Alexander | 25 | Head | Superintendent | Massachusetts |
| 32 | Grace Alexander | 22 | Wife | — | Pennsylvania |
| 33 | Gene Alexander | 2 | Son | — | New York |
| 34 | Sarah Seaburn | 83 | Head | — | Pennsylvania |
| 35 | Hughes Seaburn | 29 | Lodger | Clerk | New York |
| 36 | Edla Johnson | 66 | Lodger | Housework | Sweden |
| 37 | John Day | 77 | Head | — | England |
| 38 | Margaret Day | 75 | Wife | — | Wales |
| 39 | John Day THIS PERSON | 32 | Son | — | New York |
| 40 | David Day | 31 | Son | Switchman | New York |
Pedigree Summary
John + 1 sibling
Gen 1 · 6 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)