MD
Mary Donnelly — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this Mary Donnelly across the 1920, 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed) — first a spouse (b.~1887), then head of a 5-person household.
Age 53
b. ~1887
Female
Spouse
Born: Connecticut
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Donnelly |
| Given Name | Mary A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Connecticut |
| 1935 Residence (City) | Bayonne City |
| 1935 Residence (County) | Hudson |
| Additional Details | |
| Industry | 0 |
| Highest Grade | C 2 |
| 1935 Residence | Same House |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
| Township / Ward | Bayonne City |
| Est. Birth Year | ~1887 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| William Donnelly | Head | — | 61 | ~1879 |
| George Dooley | Other | — | 50 | ~1890 |
| William Donnelly | Son | — | 21 | ~1919 |
| Robert Donnelly | Son | — | 19 | ~1921 |
| Mary Donnelly | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Hudson, New …
Spouse, age 33
Hudson, New Jersey · implied b. ~1887 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donnelly |
| Given Name | Mary S |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Connecticut |
| Father's Birthplace | Connecticut |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
1930
Hudson, New …
Other, age 43
Hudson, New Jersey · implied b. ~1887 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donnelly |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Connecticut |
| Age at First Marriage | 32 |
| Father's Birthplace | Connecticut |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
1940
Hudson-County, New …
Spouse, age 53
Hudson-County, New Jersey · implied b. ~1887 — 5 household members
| Surname | Donnelly |
| Given Name | Mary A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Connecticut |
| 1935 Residence (City) | Bayonne City |
| 1935 Residence (County) | Hudson |
| Industry | 0 |
| Highest Grade | C 2 |
| 1935 Residence | Same House |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
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 Donnelly 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 Donnelly
Spouse · 1940 · age 53 · b. ~1887 · 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-t0627-02345-00375)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ben Newell | 30 | Son | Chemist | New Jersey |
| 2 | Hannah Newell | 29 | Daughter | Clipper | New Jersey |
| 3 | Nathan Newell | 25 | Son | Dentist | New York |
| 4 | Celia Newell | 19 | Daughter | — | New Jersey |
| 5 | Meyer Newell | 17 | Son | — | New Jersey |
| 6 | William Bertagna | 42 | Head | Patrolman | New Jersey |
| 7 | Clarice Bertagna | 42 | Wife | — | New Jersey |
| 8 | Mary Bertagna | 20 | Daughter | — | New Jersey |
| 9 | William Bertagna | 13 | Son | — | New Jersey |
| 10 | Reynolds Bertagna | 8 | Son | — | New Jersey |
| 11 | Hannah Reynolds | 88 | Mother-in-law | — | Ireland North |
| 12 | John Reynolds | 62 | Brother-in-law | Laborer | Ireland North |
| 13 | William Donnelly | 61 | Head | Manager | New Jersey |
| 14 | Mary A Donnelly THIS PERSON | 53 | Wife | — | Connecticut |
| 15 | William F Donnelly | 21 | Son | — | New Jersey |
| 16 | Robert J Donnelly | 19 | Son | — | New Jersey |
| 17 | George Dooley | 50 | Boarder | Truant Officer | New Jersey |
| 18 | Louis Bell | 48 | Head | Proprietor | New York |
| 19 | Hannah Bell | 47 | Wife | Cashier | New York |
| 20 | Lorraine Bell | 21 | Daughter | — | New Jersey |
| 21 | Frederick Bell | 14 | Son | — | New Jersey |
| 22 | George H Wauters | 65 | Head | — | New Jersey |
| 23 | Mary Wauters | 63 | Wife | — | New Jersey |
| 24 | Elizabeth St. Johns | 86 | Head | — | New York |
| 25 | Matthew St. Johns | 48 | Son | — | New Jersey |
| 26 | James St. Johns | 56 | Son | — | New Jersey |
| 27 | Ambrose St. Johns | 53 | Son | Barrel Cooper | New Jersey |
| 28 | Dennis Coughlin | 42 | Head | Deputy Commissioner | New Jersey |
| 29 | Loretta Coughlin | 40 | Daughter | — | New Jersey |
| 30 | Doris Coughlin | 13 | Daughter | — | New Jersey |
| 31 | Edward Lindquist | 31 | Brother-in-law | Machinist | New Jersey |
| 32 | Vera Lindquist | 27 | Sister-in-law | Stenographer | New Jersey |
| 33 | Casper Kruger | 52 | Head | Janitor | Russia |
| 34 | Minnie Kruger | 54 | Wife | — | Russia |
| 35 | Irving Kruger | 24 | Son | Painter | New Jersey |
| 36 | Benjamin Kruger | 36 | Son | Manager | New Jersey |
| 37 | Lillian Kruger | 34 | Daughter-in-law | — | Maine |
| 38 | Jean Kruger | 11 | Daughter | — | New Jersey |
| 39 | Sandra Kruger | 6 | Daughter | — | New Jersey |
| 40 | James C Macintosh | 63 | Head | General Office | New Jersey |
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)