MC
Mary Carroll — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this Mary Carroll across the 1920, 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed) — first a spouse (b.~1877), then head of a 4-person household.
Age 63
b. ~1877
Female
Spouse
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Carroll |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Bayonne |
| 1935 Residence (County) | Hudson |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | New Jersey |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Jersey City |
| Est. Birth Year | ~1877 |
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 |
|---|---|---|---|---|
| Irene Carroll | Daughter | — | 27 | ~1913 |
| Herbert Carroll | Head | — | 62 | ~1878 |
| Edward Carroll | Son | — | 29 | ~1911 |
| Mary Carroll | Spouse | — | 63 | ~1877 |
Census Appearances
1920
Hudson, New …
Spouse, age 40
Hudson, New Jersey · implied b. ~1880 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carroll |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Ireland |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Hudson, New …
Spouse, age 48
Hudson, New Jersey · implied b. ~1882 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carrol |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1902 |
| Age at First Marriage | 26 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Housework |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Hudson-County, New …
Spouse, age 63
Hudson-County, New Jersey · implied b. ~1877 — 4 household members
| Surname | Carroll |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Bayonne |
| 1935 Residence (County) | Hudson |
| Naturalization Status | Naturalized |
| Highest Grade | No 8 |
| 1935 Residence | New Jersey |
| 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 Carroll 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 Carroll
Spouse · 1940 · age 63 · b. ~1877 · 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 — 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-t0627-02404-00788)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | George Mckenzie | 31 | Son | Truck Driver | New Jersey |
| 42 | Robert Mckenzie | 19 | Son | Foreman | New Jersey |
| 43 | John Mckenzie | 17 | Son | Driver'S Helper | New Jersey |
| 44 | Hugh Mccomb | 64 | Uncle | — | New Jersey |
| 45 | Ralph Capp | 24 | Head | Stock Chaser | New Jersey |
| 46 | Charlotte Capp | 25 | Wife | Utility Maid | New Jersey |
| 47 | Ralph Capp | 3 | Son | — | New Jersey |
| 48 | Lillian Capp | 2 | Daughter | — | New Jersey |
| 49 | Frank Fitzpatrick | 40 | Head | Electrician | New Jersey |
| 50 | Helen Fitzpatrick | 36 | Wife | O.R. | New Jersey |
| 51 | Helen Fitzpatrick | 8 | Daughter | — | New Jersey |
| 52 | Timothy M. Bowler | 39 | Head | Mech. Draftsman | Ireland |
| 53 | Anne Bowler | 38 | Wife | — | Ireland |
| 54 | John P. Bowler | 10 | Son | — | New Jersey |
| 55 | Joseph Rinaldi | 72 | Head | Barber | Italy |
| 56 | Mary Rinaldi | 70 | Wife | — | Italy |
| 57 | Joseph Jr. Rinaldi | 42 | Son | New Worker | New Jersey |
| 58 | Thomas Rinaldi | 38 | Son | Bookkeeper | New Jersey |
| 59 | Herbert J. Carroll | 62 | Head | Rate Clerk | Michigan |
| 60 | Mary Carroll THIS PERSON | 63 | Wife | — | Ireland |
| 61 | Edward Carroll | 29 | Son | Attendant | New Jersey |
| 62 | Irene Carroll | 27 | Daughter | Comptometer Operator | New Jersey |
| 63 | John Anderson | 46 | Head | Landscape Contractor | Sweden |
| 64 | Laura Anderson | 42 | Wife | — | New Jersey |
| 65 | Arthur C. Gallagher | 21 | Step-son | Wireman | New Jersey |
| 66 | Harold F. Gallagher | 18 | Step-son | Clerk | New Jersey |
| 67 | Frank Cornelius | 48 | Boarder | Peddler | New Jersey |
| 68 | Catherine O'Neill | 58 | Head | Seamstress | Ireland |
| 69 | Mary O'Neill | 56 | Sister | Clerk | Ireland |
| 70 | James N. Russell | 40 | Head | Painter | No. Ireland |
| 71 | Hannah B. Russell | 39 | Wife | — | Scotland |
| 72 | Yvonne C. Russell | 11 | Daughter | — | No. Ireland |
| 73 | Martin Bena | 53 | Head | Fireman | Ireland |
| 74 | Mary J. Bena | 52 | Wife | — | Ireland |
| 75 | John A. Schefer | 60 | Head | Policeman | New Jersey |
| 76 | Bertha Schefer | 52 | Wife | — | New Jersey |
| 77 | Charles Schefer | 21 | Son | Lawyer | New Jersey |
| 78 | Fred Curade | 65 | Head | Laborer | New York |
| 79 | Nellie O'Connor | 55 | Head | Admitter | Ireland |
| 80 | Ciro A. Lals | 25 | Head | Accountant | Massachusetts |
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)