MJ
Mary Jackson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this Mary Jackson across the 1920, 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed), with identified parents John & John — first a daughter (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Female
Daughter
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Jackson |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Additional Details | |
| Occupation | comptometer |
| Industry | carbon factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1092 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Comptometer |
| Township / Ward | Jersey City |
| Est. Birth Year | ~1918 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Jackson | Daughter | — | 22 | ~1918 |
| Margaret Jackson | Daughter | — | 26 | ~1914 |
| Mary Jackson | Head | — | 57 | ~1883 |
| Edward Jackson | Son | — | 25 | ~1915 |
Census Appearances
1920
Hudson, New …
Daughter, age 2
Hudson, New Jersey · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jackson |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | none |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Hudson, New …
Daughter, age 12
Hudson, New Jersey · implied b. ~1918 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jackson |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| 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
Hudson-County, New …
Daughter, age 22
Hudson-County, New Jersey · implied b. ~1918 — 4 household members
| Surname | Jackson |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Occupation | comptometer |
| Industry | carbon factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1092 |
| Highest Grade | Hs 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 Mary Jackson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Jackson (~0.92 confidence) and father John Jackson (~0.92 confidence) and mother Mary Jackson (~0.92 confidence) and mother Mary Jackson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Jackson
b. ~1881
Source father
● Household
· direct · ~0.92
Father
John Jackson
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Mary Jackson
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Mary Jackson
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Jackson
Daughter · 1940 · age 22 · b. ~1918 · New Jersey
★ You are viewing this record
Sibling
Edward Jackson
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Jackson
Sibling · 1940 · age 26
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-t0627-02402-00620)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank Dalessio | 35 | Head | Proprietor | Italy |
| 2 | Rose Dalessio | 29 | Wife | — | New Jersey |
| 3 | Marie Dalessio | 10 | daughter | — | New Jersey |
| 4 | Ruth Dalessio | 2 | daughter | — | New Jersey |
| 5 | Lester Cross | 59 | Head | Machinist | New Jersey |
| 6 | Pauline Cross | 49 | Wife | — | New Jersey |
| 7 | Frank Callandriello | 49 | Head | Bartender | New Jersey |
| 8 | Catherine Callandriello | 45 | Wife | — | New Jersey |
| 9 | Joseph Callandriello | 26 | son | Manager | New Jersey |
| 10 | Mabel Callandriello | 24 | daughter | Machine Operator | New Jersey |
| 11 | Ann Callandriello | 21 | daughter | Packer | New Jersey |
| 12 | John Callandriello | 19 | son | Rod-Maker | New Jersey |
| 13 | Anthony Callandriello | 18 | son | — | New Jersey |
| 14 | Louise Callandriello | 17 | daughter | — | New Jersey |
| 15 | George Callandriello | 15 | son | — | New Jersey |
| 16 | Thomas Ryan | 41 | Head | Utility Man | New Jersey |
| 17 | Beatrice Ryan | 40 | Wife | Cleaner | New Jersey |
| 18 | Beatrice Ryan | 18 | daughter | — | New Jersey |
| 19 | Harold Beaver | 20 | nephew | Truck Helper | New Jersey |
| 20 | Peter Minarick | 23 | Head | Pressman | New Jersey |
| 21 | Adam Minarick | 65 | father | — | Austria |
| 22 | Nettie Minarick | 39 | sister | Clerk | New Jersey |
| 23 | Helen Minarick | 21 | sister | Machine Operator | New Jersey |
| 24 | Adam, Jr Minarick | 19 | brother | Carpenter | New Jersey |
| 25 | Julian Lanno | 31 | Head | Helper | New Jersey |
| 26 | Marie Lanno | 25 | Wife | — | New Jersey |
| 27 | John Cinquegrano | 27 | Head | Lifter | New Jersey |
| 28 | Irene Cinquegrano | 23 | Wife | — | New Jersey |
| 29 | Teresa Cinquegrano | 3 | daughter | — | New Jersey |
| 30 | William Guarini | 44 | Head | Superintendent | New Jersey |
| 31 | Rose Guarini | 42 | Wife | Clerk | New Jersey |
| 32 | Clementine Guarini | 16 | daughter | New Worker | New Jersey |
| 33 | William, Jr Guarini | 13 | son | — | New Jersey |
| 34 | Anna Guarini | 2 | daughter | — | New Jersey |
| 35 | Bruno Lazzaro | 25 | Head | Turner | New Jersey |
| 36 | Caroline Lazzaro | 24 | Wife | — | New York |
| 37 | Mary Jackson | 57 | Head | — | New Jersey |
| 38 | Margaret Jackson | 26 | daughter | Comptometer | New Jersey |
| 39 | Edward Jackson | 25 | son | Fly Man | New Jersey |
| 40 | Mary Jackson THIS PERSON | 22 | daughter | Comptometer | New Jersey |
Pedigree Summary
Mary + 2 siblings
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)