MC
Mary Carr — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Essex-County, New Jersey
Our Model Tree links this Mary Carr across the 1920, 1930 and 1940 US Censuses in Essex-County, New Jersey (XGBoost, ~Confirmed) — first a spouse (b.~1871), then head of a 4-person household.
Age 69
b. ~1871
Female
Spouse
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, New Jersey |
| Surname | Carr |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Newark |
| 1935 Residence (County) | Essex |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 3 |
| 1935 Residence | Same House |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Newark |
| Est. Birth Year | ~1871 |
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 |
|---|---|---|---|---|
| James Carr | Head | — | 67 | ~1873 |
| Edward Carr | Other | — | 44 | ~1896 |
| James Carr | Son | — | 27 | ~1913 |
| Mary Carr | Spouse | — | 69 | ~1871 |
Census Appearances
1920
Essex, New …
Spouse, age 46
Essex, New Jersey · implied b. ~1874 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carr |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1886 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Essex, New …
Other, age 58
Essex, New Jersey · implied b. ~1872 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carr |
| Given Name | Mary |
| Relationship to Head | Mother-in-law |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Ireland |
| Age at First Marriage | 25 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Essex-County, New …
Spouse, age 69
Essex-County, New Jersey · implied b. ~1871 — 4 household members
| Surname | Carr |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Newark |
| 1935 Residence (County) | Essex |
| Naturalization Status | Naturalized |
| Highest Grade | No 3 |
| 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 Carr 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 Carr
Spouse · 1940 · age 69 · b. ~1871 · 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-t0627-02414-00747)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Dorothy Mcmahon | 22 | Daughter | — | New Jersey |
| 42 | Myrtle Mcmahon | 21 | Daughter | Marker | New Jersey |
| 43 | Gladys Mcmahon | 16 | Daughter | — | New Jersey |
| 44 | Margaret Boylan | 63 | Head | — | Ireland |
| 45 | Catherine Boylan | 37 | Daughter | Clerical | New Jersey |
| 46 | Margaret Boylan | 26 | Daughter | Clerk | New Jersey |
| 47 | Edward Brennan | 32 | Head | Patrolman | New Jersey |
| 48 | Anne Brennan | 32 | Wife | — | New Jersey |
| 49 | John Brennan | 6 | Son | — | New Jersey |
| 50 | Daughter Barbera | 3 | Daughter | — | New Jersey |
| 51 | Arthur Knoell | 31 | Head | Teller | New Jersey |
| 52 | Cecily Knoell | 28 | Wife | — | New Jersey |
| 53 | Anna Runke | 63 | Head | — | New Jersey |
| 54 | Marie Runke | 29 | Daughter | Laborer Assist | New Jersey |
| 55 | Ferdinand Adams | 28 | Head | Estimator | New Jersey |
| 56 | Frances Adams | 31 | Wife | — | New Jersey |
| 57 | Laura Adams | 0 | Daughter | — | New Jersey |
| 58 | James Carr | 67 | Head | Sitter Out | Ireland |
| 59 | Mary Carr THIS PERSON | 69 | Wife | — | Ireland |
| 60 | James Carr | 27 | Son | Machinist | New Jersey |
| 61 | Edward Carr | 44 | Stepson | Laborer | New Jersey |
| 62 | Frank Solpha | 32 | Head | Fireman | Pennsylvania |
| 63 | Mary Solpha | 33 | Wife | Feeder | New Jersey |
| 64 | Frances Solpha | 8 | Daughter | — | New Jersey |
| 65 | Frank Perry | 34 | Head | Fireman | New Jersey |
| 66 | Minnie Perry | 35 | Wife | Sorter | New Jersey |
| 67 | Ethel Perry | 17 | Daughter | Sorter | New Jersey |
| 68 | Franklin Perry | 16 | Son | — | New Jersey |
| 69 | Charlotte Perry | 14 | Daughter | — | New Jersey |
| 70 | Romolo Giacobbe | 37 | Head | Tailor | Italy |
| 71 | Rose Giacobbe | 41 | Wife | — | New Jersey |
| 72 | Doris Giacobbe | 8 | Daughter | — | New Jersey |
| 73 | Marion Giacobbe | 5 | Daughter | — | New Jersey |
| 74 | Vincent Castencione | 60 | Head | — | Italy |
| 75 | Vito Castencione | 30 | Son | Draftsman | New Jersey |
| 76 | Catherine Castencione | 34 | Daughter | Operator | New Jersey |
| 77 | Benjamin Castencione | 26 | Son | Cutter | New Jersey |
| 78 | Mae Byrne | 48 | Head | Dept Head | New Jersey |
| 79 | Joseph Rase | 40 | Head | Electrician | New Jersey |
| 80 | Bridget Rase | 82 | Mother | — | Ireland |
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)