JW
John Wallace — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this John Wallace across the 1920, 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed), with identified parents Eugene & Patrick — first a son (b.~1900), then head of a 8-person household.
Age 40
b. ~1900
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Wallace |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Additional Details | |
| Occupation | Fireman |
| Industry | Railroad |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1200 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Fireman |
| Township / Ward | Jersey City |
| Est. Birth Year | ~1900 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Margaret Wallace | Daughter | — | 24 | ~1916 |
| Elizabeth Wallace | Daughter | — | 32 | ~1908 |
| Marion Wallace | Daughter | — | 30 | ~1910 |
| Ellen Wallace | Head | — | 63 | ~1877 |
| William Wallace | Son | — | 35 | ~1905 |
| John Wallace | Son | — | 40 | ~1900 |
| Eugene Wallace | Son | — | 25 | ~1915 |
| James Wallace | Son | — | 28 | ~1912 |
Census Appearances
1920
Hudson, New …
Son, age 19
Hudson, New Jersey · implied b. ~1901 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wallace |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Ireland |
| Mother's Birthplace | New York |
| Occupation | Stenographer |
| Industry | Wholesale Grocery |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Hudson, New …
Son, age 30
Hudson, New Jersey · implied b. ~1900 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wallace |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Pennsylvania |
| Occupation | Fireman |
| Industry | Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Hudson-County, New …
Son, age 40
Hudson-County, New Jersey · implied b. ~1900 — 8 household members
| Surname | Wallace |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Occupation | Fireman |
| Industry | Railroad |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1200 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| 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 John Wallace across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Eugene Wallace (~0.92 confidence) and father Patrick Wallace (~0.92 confidence) and mother Catherine Wallace (~0.92 confidence) and mother Ellen Wallace (~0.92 confidence) and mother Mary Wallace (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Eugene Wallace
b. ~1864
Source father
● Household
· direct · ~0.92
Father
Patrick Wallace
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Catherine Wallace
b. ~1872
Source mother
● Household
· direct · ~0.92
Mother
Ellen Wallace
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Mary Wallace
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Wallace
Son · 1940 · age 40 · b. ~1900 · New Jersey
★ You are viewing this record
Sibling
Margaret Wallace
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Wallace
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Wallace
Sibling · 1940 · age 32
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Wallace
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marion Wallace
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Wallace
Sibling · 1940 · age 35
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 — Hudson-County, New Jersey
Open full size
1940 US Federal Census — Hudson-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02401-00519)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Patrick Mcmahon | 65 | Head | Attendant | New York |
| 2 | Hannah Mcmahon | 65 | Wife | — | New Jersey |
| 3 | John Mcmahon | 37 | Son | Clerk | New Jersey |
| 4 | Catherine Mckenna | 56 | Head | — | England |
| 5 | Margaret Mckenna | 29 | Daughter | Clerk | New Jersey |
| 6 | James Mckenna | 23 | Son | Helper | New Jersey |
| 7 | Catherine Mckenna | 22 | Daughter | Clerk | New Jersey |
| 8 | Ellen Wallace | 63 | Head | — | Pennsylvania |
| 9 | John Wallace THIS PERSON | 40 | Son | Fireman | New Jersey |
| 10 | William Wallace | 35 | Son | Clerk | New Jersey |
| 11 | Elizabeth Wallace | 32 | Daughter | Helper | New Jersey |
| 12 | Marion Wallace | 30 | Daughter | Operator | New Jersey |
| 13 | James Wallace | 28 | Son | Clerk | New Jersey |
| 14 | Eugene Wallace | 25 | Son | Clerk | New Jersey |
| 15 | Margaret Wallace | 24 | Daughter | Stenographer | New Jersey |
| 16 | William O'Keefe | 38 | Head | Policeman | New Jersey |
| 17 | Mary O'Keefe | 36 | Wife | — | New Jersey |
| 18 | William O'Keefe | 9 | Son | — | New Jersey |
| 19 | Thomas O'Keefe | 3 | Son | — | New Jersey |
| 20 | Daniel Downey | 65 | Head | — | Eire |
| 21 | Mary Downey | 38 | Daughter | Dictaphone Operator | New Jersey |
| 22 | Josephine Downey | 34 | Daughter | Clerk | New Jersey |
| 23 | Anna Downey | 32 | Daughter | Clerk | New Jersey |
| 24 | Margaret Downey | 30 | Daughter | Clerk | New Jersey |
| 25 | John Downey | 22 | Son | Chauffeur | New Jersey |
| 26 | John Mcgrath | 42 | Head | Chauffeur | New Jersey |
| 27 | Anna Mcgrath | 40 | Wife | — | New Jersey |
| 28 | John Mcgrath | 13 | Son | — | New Jersey |
| 29 | Joseph Mcgrath | 10 | Son | — | New Jersey |
| 30 | Anna Mcgrath | 7 | Daughter | — | New Jersey |
| 31 | Dorothy Mcgrath | 4 | Daughter | — | New Jersey |
| 32 | Ella Gilson | 60 | Head | — | New York |
| 33 | Louis Scerbo | 28 | Head | Chauffeur | Italy |
| 34 | Rose Scerbo | 25 | Wife | — | New Jersey |
| 35 | Louis Massa | 48 | Head | Assorter | Italy |
| 36 | Mary Massa | 45 | Wife | — | New Jersey |
| 37 | Rose Massa | 23 | Daughter | Typist | New Jersey |
| 38 | Peter Massa | 21 | Son | Porter | New Jersey |
| 39 | Joseph Massa | 17 | Son | New Worker | New Jersey |
| 40 | Harry Bodner | 61 | Head | Baker | Poland |
Related Census Records
Pedigree Summary
John + 6 siblings
Gen 1 · 5 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)