MH
Mary Hayden — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Essex-County, New Jersey
Our Model Tree links this Mary Hayden across the 1930 and 1940 US Censuses in Essex-County, New Jersey (XGBoost, ~Confirmed) — first a spouse (b.~1882), then head of a 8-person household.
Age 58
b. ~1882
Female
Spouse
Born: New Jersey
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, New Jersey |
| Surname | Hayden |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Newark City |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Newark City |
| Est. Birth Year | ~1882 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| John Hayden | Head | — | 63 | ~1877 |
| John Hayden | Son | — | 31 | ~1909 |
| Mary Hayden | Spouse | — | 58 | ~1882 |
| Esther Murray | Other | — | 45 | ~1895 |
| James Hayden | Son | — | 27 | ~1913 |
| Joseph Hayden | Son | — | 25 | ~1915 |
| Francis Hayden | Son | — | 29 | ~1911 |
| Francis Murray | Other | — | 80 | ~1860 |
Census Appearances
1930
Essex, New …
Other, age 49
Essex, New Jersey · implied b. ~1881 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hayden |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Age at First Marriage | 26 |
| 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
Essex-County, New …
Spouse, age 58
Essex-County, New Jersey · implied b. ~1882 — 8 household members
| Surname | Hayden |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Newark City |
| 1935 Residence (County) | Essex |
| Highest Grade | No 8 |
| 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 Hayden across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Hayden
Spouse · 1940 · age 58 · b. ~1882 · New Jersey
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Essex-County, New Jersey
Open full size
1940 US Federal Census — Essex-County, New Jersey
Page Contents
8 people indexed on this census page (nara:1940:m-t0627-02422-00076)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 42 | John J. Hayden | 63 | Head | Court Clerk | New Jersey |
| 43 | Mary Hayden THIS PERSON | 58 | Wife | — | New Jersey |
| 44 | John J. Hayden | 31 | Son | Clerk | New Jersey |
| 45 | Francis Hayden | 29 | Son | Clerk | New Jersey |
| 46 | James Hayden | 27 | Son | Checker | New Jersey |
| 47 | Joseph Hayden | 25 | Son | Lawyer | New Jersey |
| 48 | Francis Murray | 80 | Lodger | — | New Jersey |
| 49 | Esther Murray | 45 | Lodger | — | New Jersey |
Related Census Records
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)