JG
John Grant — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this John Grant across the 1920, 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1910), then head of a 5-person household.
Age 30
b. ~1910
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Grant |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Additional Details | |
| Occupation | Bookkeeper |
| Industry | Brokerage |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 1300 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Bookkeeper |
| Township / Ward | Jersey City |
| Est. Birth Year | ~1910 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Margaret Grant | Daughter | — | 32 | ~1908 |
| John Grant | Head | — | 64 | ~1876 |
| Margaret Wilson | Other | — | 18 | ~1922 |
| John Grant | Son | — | 30 | ~1910 |
| Margaret Grant | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Hudson, New …
Son, age 9
Hudson, New Jersey · implied b. ~1911 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Grant |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Ireland |
| Mother's Birthplace | New Jersey |
| Speaks English | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Hudson, New …
Son, age 20
Hudson, New Jersey · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Grant |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Ireland |
| Mother's Birthplace | New Jersey |
| Occupation | Clerk |
| Industry | Broker Office |
| 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 30
Hudson-County, New Jersey · implied b. ~1910 — 5 household members
| Surname | Grant |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Occupation | Bookkeeper |
| Industry | Brokerage |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 1300 |
| Highest Grade | Hs 2 |
| 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 Grant across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Grant (~0.92 confidence) and father John Grant (~0.92 confidence) and mother Margaret Grant (~0.92 confidence) and mother Margaret Grant (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Grant
b. ~1875
Source father
● Household
· direct · ~0.92
Father
John Grant
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Margaret Grant
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Margaret Grant
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Grant
Son · 1940 · age 30 · b. ~1910 · New Jersey
★ You are viewing this record
Sibling
Margaret Grant
Sibling · 1940 · age 32
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-t0627-02411-00599)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clarence Segelken | 48 | Wife | — | New Jersey |
| 2 | Josephine Segelken | 15 | Daughter | — | New Jersey |
| 3 | John Grant | 64 | Head | Laborer | Eire |
| 4 | Margaret Grant | 55 | Wife | — | New Jersey |
| 5 | Margaret M. Grant | 32 | Daughter | Stenographer | New Jersey |
| 6 | John Jr. Grant THIS PERSON | 30 | Son | Bookkeeper | New Jersey |
| 7 | Margaret Wilson | 18 | Lodger | Clerical Clerk | New Jersey |
| 8 | August Spitzmiller | 61 | Head | Clerical Clerk | New Jersey |
| 9 | Frank Spitzmiller | 63 | Brother | Watchman | New Jersey |
| 10 | Nettie Henschen | 57 | Sister | — | New Jersey |
| 11 | Jacob Pilger | 58 | Head | Clerical Clerk | New York |
| 12 | Abbie Pilger | 58 | Wife | — | Pennsylvania |
| 13 | George Pilger | 29 | Son | Photographer | New Jersey |
| 14 | Ethel Pilger | 21 | Daughter | Stenographer | New Jersey |
| 15 | Marie Albrecht | 74 | Head | — | Poland |
| 16 | Absent Household | None | — | — | — |
| 17 | — | None | — | — | — |
| 18 | Frederick Henders | 47 | Head | Mason | New Jersey |
| 19 | Margaret Henders | 45 | Wife | — | New York |
| 20 | Margaret E. Henders | 16 | Daughter | — | New Jersey |
| 21 | Cyril Owen | 32 | Head | Tester | Pennsylvania |
| 22 | Mary Owen | 33 | Wife | — | New Jersey |
| 23 | Edwin Weaver | 31 | Head | Bookkeeper | New York |
| 24 | Dorothy Weaver | 32 | Wife | — | New Jersey |
| 25 | Edwin Jr. Weaver | 1 | Son | — | New Jersey |
| 26 | Engelbert Staubach | 40 | Head | Machine Operator | Germany |
| 27 | Ida Staubach | 39 | Wife | — | Germany |
| 28 | Otto Staubach | 17 | Son | — | Germany |
| 29 | Vincent Matta | 73 | Head | — | Italy |
| 30 | Angeline Matta | 67 | Wife | — | Italy |
| 31 | Mary Matta | 28 | Daughter | Machine Operator | New Jersey |
| 32 | Helen Matta | 22 | Daughter | Machine Operator | New Jersey |
| 33 | Josephine Kletzker | 32 | Daughter | — | New Jersey |
| 34 | Dorothy Kletzker | 11 | Granddaughter | — | New Jersey |
| 35 | William Kletzker | 8 | Grandson | — | New Jersey |
| 36 | Joseph Dwyer | 42 | Head | Mechanic | New York |
| 37 | Genevieve Dwyer | 38 | Wife | — | New Jersey |
| 38 | John Dwyer | 14 | Son | — | Florida |
| 39 | Mary Dwyer | 1 | Daughter | — | New Jersey |
| 40 | James Gill | 56 | Head | Butcher | New York |
Related Census Records
Pedigree Summary
John + 1 sibling
Gen 1 · 4 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)