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Mary Long — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Union-County, New Jersey
Our Model Tree links this Mary Long across the 1920, 1930 and 1940 US Censuses in Union-County, New Jersey (XGBoost, ~Confirmed) — first a spouse (b.~1884), then head of a 4-person household.
Age 56
b. ~1884
Female
Spouse
Born: New Jersey
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Union-County, New Jersey |
| Surname | Long |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Scotch Plains Village |
| 1935 Residence (County) | Union |
| Additional Details | |
| Occupation | House Cleaner |
| Industry | Private Home |
| Class of Worker | PW |
| Hours Worked | 17 |
| Income (1939) | 200 |
| Highest Grade | H-2 |
| 1935 Residence | Same House |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | House Cleaner |
| Township / Ward | Scotch Plains Village |
| Est. Birth Year | ~1884 |
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 |
|---|---|---|---|---|
| Margaret Long | Daughter | — | 20 | ~1920 |
| Herbert Long | Head | — | 61 | ~1879 |
| George Long | Other | — | 84 | ~1856 |
| Mary Long | Spouse | — | 56 | ~1884 |
Census Appearances
1920
Union, New …
Spouse, age 35
Union, New Jersey · implied b. ~1885 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | Mary E |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Father's Birthplace | Scotland |
| Mother's Birthplace | England |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Union, New …
Spouse, age 46
Union, New Jersey · implied b. ~1884 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | Mary U |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Age at First Marriage | 17 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | New Jersey |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Union-County, New …
Spouse, age 56
Union-County, New Jersey · implied b. ~1884 — 4 household members
| Surname | Long |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Scotch Plains Village |
| 1935 Residence (County) | Union |
| Occupation | House Cleaner |
| Industry | Private Home |
| Class of Worker | PW |
| Hours Worked | 17 |
| Income (1939) | 200 |
| Highest Grade | H-2 |
| 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 Mary Long across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Long
Spouse · 1940 · age 56 · b. ~1884 · 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
40 people indexed on this census page (nara:1940:m-t0627-02389-00280)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Louis Mabrey | 33 | Head | Metal Inspector | Pennsylvania |
| 2 | Elizabeth Mabrey | 27 | Wife | — | Pennsylvania |
| 3 | Louis Mabrey | 2 | Son | — | Pennsylvania |
| 4 | Ralph Karr | 45 | Head | Salesman | Michigan |
| 5 | Arline Karr | 32 | Wife | — | Michigan |
| 6 | Richard Karr | 21 | Son | Clerk | North Dakota |
| 7 | Margaret Karr | 20 | Daughter | Bookkeeper | Michigan |
| 8 | Douglas Karr | 8 | Son | — | Minnesota |
| 9 | Dana Lou Karr | 10 | Daughter | — | North Dakota |
| 10 | Herbert Long | 61 | Head | Teamster | New Jersey |
| 11 | Mary Long THIS PERSON | 56 | Wife | House Cleaner | New Jersey |
| 12 | Margaret Long | 20 | Daughter | House Cleaner | New Jersey |
| 13 | George B. Long | 84 | Father | — | New Jersey |
| 14 | John R. Haberle | 35 | Head | Chauffeur | New Jersey |
| 15 | Hazel Haberle | 37 | Wife | — | New Jersey |
| 16 | John Haberle | 7 | Son | — | New Jersey |
| 17 | Hazel Haberle | 5 | Daughter | — | New Jersey |
| 18 | Louis Prezzato | 43 | Head | Gardener | Italy |
| 19 | Mary Prezzato | 37 | Wife | — | Italy |
| 20 | John D'Addario | 49 | Head | Tailor | Italy |
| 21 | Leona D'Addario | 39 | Wife | — | New Jersey |
| 22 | Laura D'Addario | 19 | Daughter | Secretary | New Jersey |
| 23 | Nicholas D'Addario | 16 | Son | — | New Jersey |
| 24 | Henry Suriano | 54 | Head | Laborer | Italy |
| 25 | Clara Suriano | 44 | Wife | — | New Jersey |
| 26 | Leora Suriano | 26 | Daughter | — | New Jersey |
| 27 | Anthony Suriano | 21 | Son | Mechanic | New Jersey |
| 28 | Rose Suriano | 17 | Daughter | — | New Jersey |
| 29 | John Suriano | 15 | Son | — | New Jersey |
| 30 | Mauro Maranzano | 43 | Head | Laborer | Italy |
| 31 | Josephine Maranzano | 32 | Wife | — | New Jersey |
| 32 | Joseph Maranzano | 12 | Son | — | New Jersey |
| 33 | Evelyn Maranzano | 3 | Daughter | — | New Jersey |
| 34 | Benjamin Maranzano | 1 | Son | — | New Jersey |
| 35 | Felix Castaldo | 46 | Head | Mason | Italy |
| 36 | Clementine Castaldo | 32 | Wife | — | Italy |
| 37 | Mary Castaldo | 15 | Daughter | — | New Jersey |
| 38 | Anthony Castaldo | 13 | Son | — | New Jersey |
| 39 | Joseph Castaldo | 12 | Son | — | New Jersey |
| 40 | Frances Castaldo | 10 | Daughter | — | New Jersey |
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)