MF
Mary Flaherty — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this Mary Flaherty across the 1920, 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed) — first a spouse (b.~1878), then head of a 6-person household.
Age 62
b. ~1878
Female
Spouse
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Flaherty |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Jersey City |
| Est. Birth Year | ~1878 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Flaherty | Spouse | — | 62 | ~1878 |
| Jerome Flaherty | Son | — | 22 | ~1918 |
| Paul Flaherty | Son | — | 26 | ~1914 |
| Bernard Flaherty | Son | — | 23 | ~1917 |
| Francis Flaherty | Son | — | 21 | ~1919 |
| Joseph Flaherty | Head | — | 74 | ~1866 |
Census Appearances
1920
Hudson, New …
Spouse, age 45
Hudson, New Jersey · implied b. ~1875 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flaherty |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Hudson, New …
Spouse, age 54
Hudson, New Jersey · implied b. ~1876 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flaherty |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 27 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Hudson-County, New …
Spouse, age 62
Hudson-County, New Jersey · implied b. ~1878 — 6 household members
| Surname | Flaherty |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Flaherty 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 Flaherty
Spouse · 1940 · age 62 · b. ~1878 · 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-t0627-02410-00351)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lina Lane | 43 | Sister | — | New York |
| 42 | Robert J. Ross | 48 | Head | Lighter Capt | New York |
| 43 | Mary Ross | 51 | Wife | — | New York |
| 44 | Frances Creedon | 8 | Boarder | — | New Jersey |
| 45 | Joseph F. Flaherty | 74 | Head | — | England |
| 46 | Mary Flaherty THIS PERSON | 62 | Wife | — | Pennsylvania |
| 47 | Paul J. Flaherty | 26 | Son | Machinist | New Jersey |
| 48 | Bernard R. Flaherty | 23 | Son | — | New Jersey |
| 49 | Jerome P. Flaherty | 22 | Son | Drivers Helper | New Jersey |
| 50 | Francis C. Flaherty | 21 | Son | Signal Man | New Jersey |
| 51 | Frank Phellis | 44 | Head | Clerk | New York |
| 52 | Helen Phellis | 40 | Wife | — | New York |
| 53 | Marie Phellis | 16 | Daughter | Novelty Worker | New Jersey |
| 54 | Majorie Phellis | 15 | Daughter | — | New Jersey |
| 55 | Rosemary Phellis | 12 | Daughter | — | New Jersey |
| 56 | Francis Phellis | 9 | Son | — | New Jersey |
| 57 | James Phellis | 7 | Son | — | New Jersey |
| 58 | Lawrence Phellis | 5 | Son | — | New Jersey |
| 59 | Janet Phellis | 2 | Daughter | — | New Jersey |
| 60 | Joan Phellis | 2 | Daughter | — | New Jersey |
| 61 | Anna Haverty | 50 | Head | Clerk | New Jersey |
| 62 | Norbert Haverty | 32 | Son | Salesman | New Jersey |
| 63 | Virginia Haverty | 28 | Daughter | Typist | New Jersey |
| 64 | Michael De Ceglie | 33 | Head | Longshoreman | New Jersey |
| 65 | Mildred De Ceglie | 32 | Wife | — | New Jersey |
| 66 | Anna De Ceglie | 12 | Daughter | — | New Jersey |
| 67 | Mary De Ceglie | 11 | Daughter | — | New Jersey |
| 68 | Michael De Ceglie | 10 | Son | — | New Jersey |
| 69 | Joseph De Ceglie | 7 | Son | — | New Jersey |
| 70 | Dolores De Ceglie | 5 | Daughter | — | New Jersey |
| 71 | Mildred De Ceglie | 1 | Daughter | — | New Jersey |
| 72 | Mary Perski | 49 | Head | Weigher | New Jersey |
| 73 | Henry Perski | 26 | Son | Laborer | New Jersey |
| 74 | Henry Ericsson | 31 | Head | Platform Man | New Jersey |
| 75 | Henrietta Ericsson | 58 | Mother | — | New Jersey |
| 76 | William Hawes | 60 | Lodger | Laborer | New York |
| 77 | Joseph Mulhern | 54 | Head | Roofing | New Jersey |
| 78 | Emma Mulhern | 52 | Wife | — | New Jersey |
| 79 | Anne Mulhern | 20 | Daughter | Operator | New Jersey |
| 80 | Edward Mulhern | 18 | Son | Oiler | 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)