MH
Mary Hardin — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Hudson, New Jersey
Our Model Tree links this Mary Hardin across the 1930 and 1940 US Censuses in Hudson, New Jersey (XGBoost, ~Confirmed) — first a daughter (b.~1899), then head of a 9-person household.
Age 31
b. ~1899
Female
Daughter
Born: New Jersey
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Hudson, New Jersey |
| Surname | Hardin |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Additional Details | |
| Occupation | storekeeper |
| Industry | railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Storekeeper |
| Township / Ward | Jersey City |
| Est. Birth Year | ~1899 |
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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Joseph Hardin | Son | — | 36 | ~1894 |
| Mary Hardin | Daughter | — | 31 | ~1899 |
| Ann Hardin | Head | — | 60 | ~1870 |
| Catherine Hardin | Daughter | — | 38 | ~1892 |
| John Holden | Son | — | 27 | ~1903 |
| Lucy Mcconville | Daughter | — | 22 | ~1908 |
| James Mcconville | Other | — | 25 | ~1905 |
| Mary Mcconville | Other | — | 2 | ~1928 |
| Alice Hardin | Daughter | — | 24 | ~1906 |
Census Appearances
1930
Hudson, New …
Daughter, age 31
Hudson, New Jersey · implied b. ~1899 — 9 household members
| Surname | Hardin |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | storekeeper |
| Industry | railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Hudson-County, New …
Spouse, age 41
Hudson-County, New Jersey · implied b. ~1899 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harding |
| Given Name | Mae |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| 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 Hardin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Hardin
Daughter · 1930 · age 31 · b. ~1899 · New Jersey
★ You are viewing this record
Sibling
John Holden
Sibling · 1930 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lucy Mcconville
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Hardin
Sibling · 1930 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Hardin
Sibling · 1930 · age 36
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Hardin
Sibling · 1930 · age 38
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
1930 US Federal Census — Hudson, New Jersey
Open full size
1930 US Federal Census — Hudson, New Jersey
Page Contents
50 people indexed on this census page (ia:1930:newjerseycensus00reel1355:0694)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Olga Dapola | 12 | daughter | None | New Jersey |
| 52 | Harry Reinhardt | 24 | Head | Carpenter | Poland |
| 53 | Pelichia Reinhardt | 18 | wife | None | Poland |
| 54 | Katherine Reinhardt | 3 | daughter | None | Poland |
| 55 | Mary Reinhardt | 2 | daughter | None | Poland |
| 56 | Stella Reinhardt | 0 | daughter | None | Poland |
| 57 | Margaret Pfeiffer | 50 | Head | None | New York |
| 58 | William Pfeiffer | 49 | brother | None | New York |
| 59 | Jess Pfeiffer | 35 | brother | Salesman | New York |
| 60 | Stanley Tymczak | 26 | Head | Laborer | Poland |
| 61 | Anna Tymczak | 22 | wife | Machinist Helper | Poland |
| 62 | John Tymczak | 1 | son | None | New Jersey |
| 63 | Tifil Kokosinski | 33 | Head | None | Poland |
| 64 | Anna Kokosinski | 30 | wife | Laborer | Poland |
| 65 | Eleanor Kokosinski | 5 | daughter | None | New Jersey |
| 66 | John Kokosinski | 1 | son | None | New Jersey |
| 67 | Stephen Jukowski | 48 | Head | None | Eastern Galicia |
| 68 | Paulina Jukowski | 36 | wife | Laborer | Eastern Galicia |
| 69 | Mary Jukowski | 17 | daughter | None | New Jersey |
| 70 | Anna Jukowski | 13 | daughter | Clerk | New Jersey |
| 71 | Dorothy Jukowski | 10 | daughter | None | New Jersey |
| 72 | Eugenia Jukowski | 5 | daughter | None | New Jersey |
| 73 | Patrick Brady | 39 | Head | None | New York |
| 74 | Peter Brady | 30 | brother | Driver | New Jersey |
| 75 | Bridget Brady | 65 | mother | Box Loader | Irish Free State |
| 76 | Eileen Brady | 5 | niece | None | New Jersey |
| 77 | Peter Brady | 4 | nephew | None | New Jersey |
| 78 | Margaret Frist | 22 | niece | None | New Jersey |
| 79 | James Frist | 1 | nephew | None | New Jersey |
| 80 | Harold R. Frist | 0 | nephew | None | New Jersey |
| 81 | Ann Hardin | 60 | Head | None | Irish Free State |
| 82 | Catherine Hardin | 38 | daughter | None | New York |
| 83 | Joseph Hardin | 36 | son | Clerk | New Jersey |
| 84 | Mary Hardin THIS PERSON | 31 | daughter | Storekeeper | New Jersey |
| 85 | Alice Hardin | 24 | daughter | None | New Jersey |
| 86 | James Mcconville | 25 | son-in-law | Shipper | New York |
| 87 | Lucy Mcconville | 22 | daughter | Ironworker | New Jersey |
| 88 | Mary Mcconville | 2 | granddaughter | None | New Jersey |
| 89 | John Holden | 27 | son | None | New Jersey |
| 90 | John Imet | 42 | Head | None | Galicia |
| 91 | Annie Imet | 39 | wife | Car Inspector | Galicia |
| 92 | Elizabeth Lummel | 38 | Head | None | New Jersey |
| 93 | William Lummel | 17 | son | None | New Jersey |
| 94 | Elmer Lummel | 15 | son | Typist | New Jersey |
| 95 | Walter Lummel | 13 | son | Errand Boy | New Jersey |
| 96 | Frances Lummel | 41 | Head | None | New Jersey |
| 97 | Jacob Geiger | 64 | Head | Pencils | Germany |
| 98 | Catherine Geiger | 62 | wife | Car Inspector | Germany |
| 99 | Marion Geiger | 33 | daughter | None | New Jersey |
| 100 | Frank Geiger | 25 | son | Teacher | New Jersey |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)