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Mary Mccormick — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this Mary Mccormick across the 1920, 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1880), then head of a 2-person household.
Age 60
b. ~1880
Female
Head
Born: New Jersey
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | McCormick |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Widowed |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Jersey City |
| Est. Birth Year | ~1880 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Marie Mccormick | Daughter | — | 32 | ~1908 |
| Mary Mccormick | Head | — | 60 | ~1880 |
Census Appearances
1920
Hudson, New …
Spouse, age 37
Hudson, New Jersey · implied b. ~1883 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCormack |
| Given Name | Mary A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Hudson, New …
Spouse, age 48
Hudson, New Jersey · implied b. ~1882 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCormack |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Age at First Marriage | 29 |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Hudson-County, New …
Head, age 60
Hudson-County, New Jersey · implied b. ~1880 — 2 household members
| Surname | McCormick |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Widowed |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Highest Grade | No 6 |
| 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 Mccormick 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 Mccormick
Head · 1940 · age 60 · b. ~1880 · 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 — 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-t0627-02408-00443)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alfred Meyer | 47 | Lodger | Chauffeur | New York |
| 2 | Dominic Lambergano | 26 | Head | Finisher | Italy |
| 3 | Eugene Lambergano | 28 | Brother | Manager | Italy |
| 4 | Michael Lambergano | 63 | Father | Mechanic | Italy |
| 5 | Almerinda Lambergano | 46 | Mother | Finisher | Italy |
| 6 | Prudence Lambergano | 10 | Sister | — | New Jersey |
| 7 | Gertrude Dwyer | 46 | Head | Typist | New Jersey |
| 8 | Anthony Dwyer | 20 | Son | Operator | New Jersey |
| 9 | James Dwyer | 16 | Son | — | New Jersey |
| 10 | Theodore Dwyer | 14 | Son | — | New Jersey |
| 11 | Mary G. Purcell | 59 | Head | Sewing | New Jersey |
| 12 | Patrick Lazarus | 42 | Head | Mate | New Jersey |
| 13 | Elizabeth Lazarus | 46 | Wife | — | New Jersey |
| 14 | Wilfrid Abrahamson | 60 | Head | Oiler | Sweden |
| 15 | Christina Abrahamson | 58 | Wife | Cook | Sweden |
| 16 | Lillian Cassidy | 41 | Head | Typist | New Jersey |
| 17 | Adama Lillian Cassidy | 17 | Niece | — | New Jersey |
| 18 | Lottie Kurnatkowski | 36 | Head | Supervisor | New Jersey |
| 19 | Mary Kurnatkowski | 11 | Niece | — | New Jersey |
| 20 | George Cullen | 34 | Head | Compositor | New Jersey |
| 21 | Agnes Cullen | 33 | Wife | — | New Jersey |
| 22 | George Cullen | 10 | Son | — | New Jersey |
| 23 | Thelma Cullen | 6 | Daughter | — | New Jersey |
| 24 | Helen Cullen | 4 | Daughter | — | New Jersey |
| 25 | Mary Mccormick THIS PERSON | 60 | Head | — | New Jersey |
| 26 | Marie Mccormick | 32 | Daughter | Comptometer Operator | New Jersey |
| 27 | Anne Hanrahan | 65 | Head | — | New Jersey |
| 28 | James Ryan | 30 | Head | Utility Man | New Jersey |
| 29 | Veronica Ryan | 35 | Wife | — | New Jersey |
| 30 | Mary Ryan | 4 | Daughter | — | New Jersey |
| 31 | James Ryan | 2 | Son | — | New Jersey |
| 32 | Thomas Seybold | 26 | Head | Timekeeper | Virginia |
| 33 | Margaret Seybold | 25 | Wife | Packer | Massachusetts |
| 34 | Joseph Fincken | 37 | Head | Salesman | New Jersey |
| 35 | Gertrude Fincken | 34 | Wife | — | New Jersey |
| 36 | Joan Fincken | 12 | Daughter | — | New Jersey |
| 37 | Joseph Fincken | 7 | Son | — | New Jersey |
| 38 | Woodrow Wills | 20 | Head | Soda-Clerk | New Jersey |
| 39 | Jane Wills | 17 | Wife | Typist | New Jersey |
| 40 | Howard Neumann | 34 | Head | Elec. Eng. | New York |
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)