MC
Mary Cavanaugh — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Essex-County, New Jersey
Our Model Tree links this Mary Cavanaugh across the 1920, 1930 and 1940 US Censuses in Essex-County, New Jersey (XGBoost, ~Confirmed) — first a spouse (b.~1875), then head of a 4-person household.
Age 65
b. ~1875
Female
Spouse
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, New Jersey |
| Surname | Cavanaugh |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Newark |
| 1935 Residence (County) | Essex |
| Naturalization Status | Naturalized |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same house |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Newark |
| Est. Birth Year | ~1875 |
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 |
|---|---|---|---|---|
| Peter Cavanaugh | Head | — | 66 | ~1874 |
| Mary Cavanaugh | Spouse | — | 65 | ~1875 |
| Nora Cavanaugh | Daughter | — | 32 | ~1908 |
| Margaret Cavanaugh | Daughter | — | 30 | ~1910 |
Census Appearances
1920
Hudson, New …
Spouse, age 52
Hudson, New Jersey · implied b. ~1868 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cavanaugh |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1890 |
| Naturalization Status | Alien |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Hudson, New …
Spouse, age 60
Hudson, New Jersey · implied b. ~1870 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cavanagh |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1890 |
| Age at First Marriage | 20 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Police Officer |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Veteran | No |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Essex-County, New …
Spouse, age 65
Essex-County, New Jersey · implied b. ~1875 — 4 household members
| Surname | Cavanaugh |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Newark |
| 1935 Residence (County) | Essex |
| Naturalization Status | Naturalized |
| Class of Worker | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same house |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Cavanaugh 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 Cavanaugh
Spouse · 1940 · age 65 · b. ~1875 · 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
40 people indexed on this census page (nara:1940:m-t0627-02416-00484)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | M. Hale | M. Hall Costa | 10 | Son | — | New Jersey |
| 42 | Joseph Costa | 8 | Son | — | New Jersey |
| 43 | John Costa | 6 | Son | — | New Jersey |
| 44 | Peter Cavanaugh | 66 | Head | Laborer | Ireland |
| 45 | Mary Cavanaugh THIS PERSON | 65 | Wife | — | Ireland |
| 46 | Nora Cavanaugh | 32 | Daughter | Stenographer | New Jersey |
| 47 | Margaret Cavanaugh | 30 | Daughter | Teacher | New Jersey |
| 48 | Leo Reilly | 49 | Head | Auditor | New Jersey |
| 49 | Mary Reilly | 44 | Wife | — | New Jersey |
| 50 | Frances Reilly | 15 | Daughter | Clerk (New) | New Jersey |
| 51 | Mary Reilly | 14 | Daughter | — | New Jersey |
| 52 | Jeanne Reilly | 13 | Daughter | — | New Jersey |
| 53 | Doris Reilly | 10 | Daughter | — | New Jersey |
| 54 | Peter Toole | 45 | Brother-in-law | News Writer | New Jersey |
| 55 | James Mccann | 44 | Head | Traffic Manager | New Jersey |
| 56 | Irene Mccann | 42 | Wife | — | New Jersey |
| 57 | Irene Mccann | 18 | Daughter | Clerk (Work) | New Jersey |
| 58 | Veronica Mccann | 16 | Daughter | — | New Jersey |
| 59 | Margaret Lynch | 36 | Sister-in-law | Clerk | New Jersey |
| 60 | Rebecca Garity | 35 | Head | Stenographer | New Jersey |
| 61 | Marie Cavanaugh | 68 | Mother | — | New Jersey |
| 62 | Joseph Battin | 56 | Head | Salesman | New Jersey |
| 63 | Loretta Battin | 58 | Wife | — | New Jersey |
| 64 | Mary Harris | 61 | Sister | — | New Jersey |
| 65 | Elmer Harris | 50 | Brother-in-law | Bondman | New Jersey |
| 66 | Robert Bogle | 65 | Head | — | New Jersey |
| 67 | Mary Bogle | 63 | Wife | — | New Jersey |
| 68 | Robert Jr. Bogle | 32 | Son | Salesman | New Jersey |
| 69 | Helen Bogle | 30 | Daughter | — | New Jersey |
| 70 | Walter Bogle | 24 | Son | Manager | New Jersey |
| 71 | Edward Bogle | 21 | Son | Hatter Helper | New Jersey |
| 72 | Elizabeth Zimmerman | 87 | Mother-in-law | — | New Jersey |
| 73 | Mary Feeley | 59 | Head | — | Ireland |
| 74 | Margaret Mary Feeley | 18 | Daughter | — | New Jersey |
| 75 | Elizabeth Reilly | 39 | Head | Wrapper | New Jersey |
| 76 | Frederick Reilly | 20 | Son | Chauffer | New Jersey |
| 77 | Mary Cavanaugh | 79 | Mother | — | Scotland |
| 78 | Grace Pycraft | 61 | Head | Clerk | Ohio |
| 79 | Irma Pycraft | 34 | Daughter | Teacher | New Jersey |
| 80 | Lorenzo Van Aken | 68 | Head | Bookkeeper | 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)