MH
Mary Hardy — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Middlesex, New Jersey
Our Model Tree links this Mary Hardy across the 1900, 1910 and 1920 US Censuses in Middlesex, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1879), then head of a 6-person household.
Age 41
b. ~1879
Female
Head
Born: New Jersey
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | Middlesex, New Jersey |
| Surname | Hardy |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Widowed |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Additional Details | |
| Occupation | Keeper |
| Industry | Boarding House |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Keeper |
| Township / Ward | New Brunswick City |
| Est. Birth Year | ~1879 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Edith Hardy | Daughter | — | 3 | ~1917 |
| Mary Hardy | Head | — | 41 | ~1879 |
| Floyd Davis | Other | — | 21 | ~1899 |
| Henry Mahler | Other | — | 17 | ~1903 |
| Mary Smith | Other | — | 18 | ~1902 |
| Earl Hardy | Son | — | 6 | ~1914 |
Census Appearances
1900
Middlesex, New …
Spouse, age 21
Middlesex, New Jersey · implied b. ~1879 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hardy |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Birth Month | Aug |
| Birth Year | 1879 |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1910
Middlesex, New …
Spouse, age 31
Middlesex, New Jersey · implied b. ~1879 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hardy |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 31 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Years Married | 13 |
| Children Born | 4 |
| Children Living | 4 |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | Washerwoman |
| Industry | Work Out |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1920
Middlesex, New …
Head, age 41
Middlesex, New Jersey · implied b. ~1879 — 6 household members
| Surname | Hardy |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Widowed |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | Keeper |
| Industry | Boarding House |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| 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 Hardy across 3 US Census years (1900, 1910 and 1920) in Middlesex, New Jersey, using XGBoost record linkage.
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This person
Anchor record
Mary Hardy
Head · 1920 · age 41 · b. ~1879 · New Jersey
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Middlesex, New Jersey
Open full size
1920 US Federal Census — Middlesex, New Jersey
Page Contents
49 people indexed on this census page (ia:1920:14thcensusofpopu1055unit:0834)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Esther Luchman | 8 | Daughter | — | New York |
| 52 | William Nelson | 25 | Head | Painter | New Jersey |
| 53 | Laura Nelson | 23 | Sister | — | New Jersey |
| 54 | Beckie Vomero | 57 | Head | Laundress | New Jersey |
| 55 | Gertrude Smith | 28 | Grand Daughter | Machinist | New Jersey |
| 56 | Ella Smith | 24 | Grand Daughter | Machine Hand | New Jersey |
| 57 | James Donnelly | 32 | Head | Fireman | Ireland |
| 58 | Mary Donnelly | 32 | Wife | — | Ireland |
| 59 | James Donnelly | 10 | Son | — | New Jersey |
| 60 | Agnes Donnelly | 7 | Daughter | — | New Jersey |
| 61 | John Donnelly | 5 | Son | — | New Jersey |
| 62 | Meyer Frank | 28 | Head | Merchant | Russia |
| 63 | Claude D. Tallman | 51 | Head | — | New Jersey |
| 64 | Clara P. Tallman | 24 | Daughter | Bookkeeper | New Jersey |
| 65 | John P. Tallman | 21 | Boarder | Electrical | New Jersey |
| 66 | John J. Ryan | 67 | Head | Watchman | New Jersey |
| 67 | Mary Ryan | 24 | Wife | Foreman | New Jersey |
| 68 | Joseph M. Ryan | 19 | Son | Chauffeur | New Jersey |
| 69 | George E. Ryan | 61 | Brother | Yardman | New Jersey |
| 70 | Clifford Anderson | 34 | Son in law | Engineer | New Jersey |
| 71 | Helen Anderson | 31 | Daughter | — | New Jersey |
| 72 | Gerard Anderson | 11 | Grandson | — | New Jersey |
| 73 | John Anderson | 7 | Grandson | — | New Jersey |
| 74 | John Shapiro | 29 | Head | Merchant | Russia |
| 75 | Mollie Shapiro | 25 | Wife | — | Russia |
| 76 | Harry E. Bishop | 36 | Head | Clerk | New Jersey |
| 77 | Alice Bishop | 35 | Wife | — | New Jersey |
| 78 | Anna Griffin | 52 | Head | Keeper | Ireland |
| 79 | Anna Griffin | 25 | Daughter | Operator | New Jersey |
| 80 | Jenny Griffin | 22 | Daughter | Stenographer | New Jersey |
| 81 | Frederick Brown | 45 | Boarder | Shipping Clerk | England |
| 82 | Edna Griffin | 4 | Grand Daughter | — | New Jersey |
| 83 | Mary Hardy THIS PERSON | 41 | Head | Keeper | New Jersey |
| 84 | Earl Hardy | 6 | Son | — | New Jersey |
| 85 | Edith M. Hardy | 3 | Daughter | — | New Jersey |
| 86 | Henry J. Mahler | 17 | Boarder | Cutter | New Jersey |
| 87 | Floyd Davis | 21 | Boarder | Chauffeur | New Jersey |
| 88 | Mary Smith | 18 | Boarder | Waitress | England |
| 89 | Philip S. Friedman | 55 | Head | Merchant | Russia |
| 90 | Annie Friedman | 53 | Wife | — | Russia |
| 91 | Rose Friedman | 22 | Daughter | Stenographer | New York |
| 92 | Harry Barry | 35 | Head | Merchant | China |
| 93 | Louis Barry | 36 | Boarder | Laborer | California |
| 94 | Philip Martin | 26 | Head | Painter | Russia |
| 95 | Catherine Martin | 55 | Head | — | Italy |
| 96 | Joseph Martin | 27 | Son | Barber | Italy |
| 97 | Josephine Martin | 16 | Daughter | Wrapper | New York |
| 98 | Michael Martin | 15 | Son | — | New York |
| 99 | Antonio Martin | 25 | Boarder | Laborer | Italy |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)