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Mary Tierney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Union-County, New Jersey
Our Model Tree links this Mary Tierney across the 1930 and 1940 US Censuses in Union-County, New Jersey (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 13-person household.
Age 19
b. ~1921
Female
Daughter
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Union-County, New Jersey |
| Surname | Tierney |
| Given Name | Mary Elizabeth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Elizabeth City |
| 1935 Residence (County) | Union |
| Additional Details | |
| Occupation | Bookkeeper |
| Industry | Mfg Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 624 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Bookkeeper |
| Township / Ward | Elizabeth City |
| Est. Birth Year | ~1921 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Joseph Tierney | Head | — | 43 | ~1897 |
| Alice Tierney | Spouse | — | 42 | ~1898 |
| Joseph Tierney | Son | — | 16 | ~1924 |
| Ann Tierney | Daughter | — | 8 | ~1932 |
| William Tierney | Son | — | 11 | ~1929 |
| James Tierney | Son | — | 15 | ~1925 |
| Edward Tierney | Son | — | 13 | ~1927 |
| Patricia Tierney | Daughter | — | 1 | ~1939 |
| Alice Tierney | Daughter | — | 10 | ~1930 |
| John Tierney | Son | — | 14 | ~1926 |
| Mary Tierney | Daughter | — | 19 | ~1921 |
| Margaret Tierney | Daughter | — | 6 | ~1934 |
| Richard Tierney | Son | — | 3 | ~1937 |
Census Appearances
1930
Union, New …
Daughter, age 9
Union, New Jersey · implied b. ~1921 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Tierney |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Union-County, New …
Daughter, age 19
Union-County, New Jersey · implied b. ~1921 — 13 household members
| Surname | Tierney |
| Given Name | Mary Elizabeth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Elizabeth City |
| 1935 Residence (County) | Union |
| Occupation | Bookkeeper |
| Industry | Mfg Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 624 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 Tierney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Tierney
Daughter · 1940 · age 19 · b. ~1921 · New Jersey
★ You are viewing this record
Sibling
William Tierney
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Tierney
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Tierney
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Tierney
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Tierney
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ann Tierney
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Tierney
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Tierney
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Tierney
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Tierney
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Union-County, New Jersey
Open full size
1940 US Federal Census — Union-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02400-00635)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph Tierney | 43 | Head | County Policeman | New Jersey |
| 2 | Alice Tierney | 42 | Wife | — | New Jersey |
| 3 | Mary Elizabeth Tierney THIS PERSON | 19 | Daughter | Bookkeeper | New Jersey |
| 4 | Joseph M Tierney | 16 | Son | — | New Jersey |
| 5 | James Tierney | 15 | Son | — | New Jersey |
| 6 | John Tierney | 14 | Son | — | New Jersey |
| 7 | Edward Tierney | 13 | Son | — | New Jersey |
| 8 | William Tierney | 11 | Son | — | New Jersey |
| 9 | Alice Tierney | 10 | Daughter | — | New Jersey |
| 10 | Ann C Tierney | 8 | Daughter | — | New Jersey |
| 11 | Margaret Tierney | 6 | Daughter | — | New Jersey |
| 12 | Richard Tierney | 3 | Son | — | New Jersey |
| 13 | Patricia Tierney | 1 | Daughter | — | New Jersey |
| 14 | William E Darling | 57 | Head | Route Mgr | New Jersey |
| 15 | Catherine R Darling | 53 | Wife | — | New Jersey |
| 16 | Gloria Osborne | 30 | Daughter | Beauty O. | New Jersey |
| 17 | Donald H Osborne | 32 | Son-in-law | — | New Jersey |
| 18 | Herbert A Osborne | 3 | Grandson | — | New Jersey |
| 19 | Charles C Murphy | 66 | Head | Salesman | Ireland |
| 20 | Mary A Murphy | 58 | Wife | Pattern Clk | Ireland |
| 21 | Charles W Murphy | 28 | Son | Housekeeper | New Jersey |
| 22 | Oliver Mader | 59 | Head | Assembly Clk | Penn |
| 23 | Ellen Mader | 83 | Mother | Ship. Clk | Penn |
| 24 | William Mader | 65 | Son | — | Penn |
| 25 | Fred Mader | 53 | Son | Barber | Penn |
| 26 | Emil Lesler | 60 | Head | Cooker | Germany |
| 27 | Caroline Lesler | 58 | Wife | Heater | Germany |
| 28 | John Gooditis | 53 | Head | Housekeeper | Lithuania |
| 29 | Emma Gooditis | 41 | Wife | Pipefitter | Lithuania |
| 30 | Ruth Gooditis | 13 | Daughter | Cigar Maker | New Jersey |
| 31 | Emil Gooditis | 21 | Son | — | New Jersey |
| 32 | Olga Pochkus | 17 | Niece | File Cutter | New Jersey |
| 33 | Helen Hoehler | 50 | Head | — | New Jersey |
| 34 | Francis M Adams | 76 | Head | Dress Fitter | Maryland |
| 35 | Louisa A Adams | 69 | Wife | — | England |
| 36 | Stanley J Borkowski | 43 | Son-in-law | — | New York |
| 37 | Aletta Borkowski | 21 | Daughter | Ticket Seller | New Jersey |
| 38 | Doris Borkowski | 11 | Granddaughter | Teacher | New Jersey |
| 39 | Francis A Plowshay | 22 | Head | — | New Jersey |
| 40 | Anna Plowshay | 47 | Mother | Stenographer | Poland |
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)