JD
James Day — 1940 US Census Record
Model Tree available1940 United States Federal Census · Union-County, New Jersey
Our Model Tree links this James Day across the 1920, 1930 and 1940 US Censuses in Union-County, New Jersey (XGBoost, ~Confirmed), with identified parents William & Catherine — first a son (b.~1915), then head of a 3-person household.
Age 25
b. ~1915
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Union-County, New Jersey |
| Surname | Day |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Elizabeth City |
| 1935 Residence (County) | Union |
| Additional Details | |
| Occupation | Tool Maker |
| Industry | Sewing Machine Factory |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 1206 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Tool Maker |
| Township / Ward | Elizabeth City |
| Est. Birth Year | ~1915 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| William Day | Head | — | 58 | ~1882 |
| James Day | Son | — | 25 | ~1915 |
| Ada Day | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Monmouth, New …
Son, age 4
Monmouth, New Jersey · implied b. ~1916 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Day |
| Given Name | James E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Union, New …
Son, age 15
Union, New Jersey · implied b. ~1915 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Day |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Union-County, New …
Son, age 25
Union-County, New Jersey · implied b. ~1915 — 3 household members
| Surname | Day |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Elizabeth City |
| 1935 Residence (County) | Union |
| Occupation | Tool Maker |
| Industry | Sewing Machine Factory |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 1206 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 James Day across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father William Day (~0.92 confidence) and mother Catherine Day (~0.92 confidence) and father James Day (~0.92 confidence) and mother Ada Day (~0.92 confidence) and father Walter Day (~0.92 confidence) and mother Jennie Day (~0.92 confidence) and mother Rose Salinardo (~0.92 confidence). The pedigree spans 1 generation with 7 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Day
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Catherine Day
b. ~1883
Source mother
● Household
· direct · ~0.92
Father
James Day
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Ada Day
b. ~1885
Source mother
● Household
· direct · ~0.92
Father
Walter Day
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Jennie Day
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Rose Salinardo
b. ~1900
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Day
Son · 1940 · age 25 · b. ~1915 · New Jersey
★ 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 — Union-County, New Jersey
Open full size
1940 US Federal Census — Union-County, New Jersey
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-02400-00388)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Carol Howard | 2 | Daughter | — | New Jersey |
| 2 | Raymond Gehl | 26 | Head | Bench Worker | New Jersey |
| 3 | Mary Gehl | 28 | Wife | — | New Jersey |
| 4 | Raymond Jr. Gehl | 5 | Son | — | New Jersey |
| 5 | Samuel C. Irwin | 53 | Head | Night Watchman | Northern Ireland |
| 6 | Susan Irwin | 53 | Wife | — | Irish Free State |
| 7 | John J. Rescor | 26 | Head | Sprayer | New York |
| 8 | Mildred Rescor | 24 | Wife | — | New Jersey |
| 9 | John E. Rescor | 1 | Son | — | New Jersey |
| 10 | Herbert Thompson | 45 | Head | — | Scotland |
| 11 | Agnes Thompson | 39 | Wife | Needle Inspector | Scotland |
| 12 | George Gangler | 43 | Head | Laborer | Lithuania |
| 13 | Myrtle Gangler | 31 | Wife | — | New Jersey |
| 14 | John Munn | 25 | Head | Lecturer-Preacher | Pennsylvania |
| 15 | Justin E. Hartman | 21 | Partner | Lecturer-Preacher | Pennsylvania |
| 16 | William Day | 58 | Head | Mechanist | New Jersey |
| 17 | Ada Day | 55 | Wife | — | New Jersey |
| 18 | James Day THIS PERSON | 25 | Son | Tool Maker | New Jersey |
| 19 | Luca Prosseda | 28 | Head | Truck Driver | Pennsylvania |
| 20 | Anna Prosseda | 30 | Wife | — | Connecticut |
| 21 | Patricia A. Prosseda | 4 | Daughter | — | New Jersey |
| 22 | Mary Prosseda | 26 | Sister | Sales Girl | Pennsylvania |
| 23 | Charles R. Coburn | 80 | Head | — | New Jersey |
| 24 | Ada Coburn | 70 | Wife | — | Virginia |
| 25 | Charles Jr. Coburn | 49 | Son | Gardener | New Jersey |
| 26 | Herman Coburn | 40 | Son | Junior Clerk-Mail | New Jersey |
| 27 | Josephine Bruce | 68 | Sister-in-law | — | Virginia |
| 28 | Andrew R. Marrow | 76 | Head | — | N. Carolina |
| 29 | Clara Bryant | 50 | Daughter | Domestic | N. Carolina |
| 30 | Lydia Watson | 30 | Daughter | Presser | S. Carolina |
| 31 | Julia R. Serious | 12 | Daughter | — | Pennsylvania |
| 32 | Frank Cordone | 50 | Head | Tailor | Italy |
| 33 | Anna Cordone | 83 | Mother | — | Italy |
| 34 | Oscar Raves | 62 | Head | Brakeman | New Jersey |
| 35 | Elizabeth A. Raves | 54 | Wife | — | New Jersey |
| 36 | Edythe Raves | 16 | Daughter | — | New Jersey |
| 37 | Marion Mcnulty | 32 | Head | Store Keeper | New York |
| 38 | Marilyn Mcnulty | 4 | Daughter | — | New Jersey |
| 39 | Mildred Farrell | 39 | Head | Beautician | Connecticut |
Pedigree Summary
James
Gen 1 · 7 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)