MH
Mary Hardy — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Mary Hardy across the 1920 and 1930 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1886), then head of a 10-person household.
Age 44
b. ~1886
Female
Spouse
Born: Massachusetts
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | Hardy |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 31 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Framingham Town |
| Est. Birth Year | ~1886 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Hardy | Daughter | — | 13 | ~1917 |
| Kathleen Hardy | Daughter | — | 10 | ~1920 |
| Francis Hardy | Head | — | 43 | ~1887 |
| Catherine Hardy | Other | — | 25 | ~1905 |
| Michael Hardy | Son | — | 8 | ~1922 |
| Thomas Hardy | Son | — | 5 | ~1925 |
| James Hardy | Son | — | 6 | ~1924 |
| John Hardy | Son | — | 11 | ~1919 |
| Brendan Hardy | Son | — | 3 | ~1927 |
| Mary Hardy | Spouse | — | 44 | ~1886 |
Census Appearances
1920
Middlesex, Massachusetts
Spouse, age 35
Middlesex, Massachusetts · implied b. ~1885 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hardy |
| Given Name | Mary F. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Spouse, age 44
Middlesex, Massachusetts · implied b. ~1886 — 10 household members
| Surname | Hardy |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 31 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 2 US Census years (1920 and 1930) in Middlesex, Massachusetts, using XGBoost record linkage.
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This person
Anchor record
Mary Hardy
Spouse · 1930 · age 44 · b. ~1886 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Middlesex, Massachusetts
Open full size
1930 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel919:0457)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Kowalko | 48 | Head | Moulder | Poland |
| 2 | Annie Kowalko | 41 | Wife | — | Poland |
| 3 | Stanley Kowalko | 20 | Son | Printer | Massachusetts |
| 4 | Alexander Kowalko | 16 | Son | Baker | Massachusetts |
| 5 | Albert Kowalko | 13 | Son | — | Massachusetts |
| 6 | Josephine Corretti | 46 | Head | — | Italy |
| 7 | Alice Corretti | 17 | Daughter | Box Maker | Massachusetts |
| 8 | Alfonso Corretti | 15 | Son | — | Massachusetts |
| 9 | Joseph Corretti | 10 | Son | — | Massachusetts |
| 10 | Victoria Grzyboska | 38 | Head | Moulder | Poland |
| 11 | Leo Grzyboska | 16 | Son | — | Massachusetts |
| 12 | Francis Grzyboska | 11 | Son | — | Massachusetts |
| 13 | Dora Grzyboska | 9 | Daughter | — | Massachusetts |
| 14 | Hazel Grzyboska | 7 | Daughter | — | Massachusetts |
| 15 | Frank Grzyboska | 6 | Son | — | Massachusetts |
| 16 | Jennie Grzyboska | 4 | Daughter | — | Massachusetts |
| 17 | Austin R. Berry | 29 | Head | Brakeman | Irish Free State |
| 18 | Thelma R. Berry | 21 | Wife | Stitcher | Massachusetts |
| 19 | Lawrence Eldridge | 46 | Head | Shipper | Nova Scotia |
| 20 | Bridget Eldridge | 46 | Wife | — | Irish Free State |
| 21 | John Eldridge | 15 | Son | — | Massachusetts |
| 22 | Robert Eldridge | 14 | Son | — | Massachusetts |
| 23 | Dora Eldridge | 12 | Daughter | — | Massachusetts |
| 24 | Austin Eldridge | 10 | Son | — | Massachusetts |
| 25 | Gertrude Eldridge | 8 | Daughter | — | Massachusetts |
| 26 | Mary A. Berry | 60 | Head | — | Irish Free State |
| 27 | Katherine Berry | 32 | Daughter | Superintendent | Massachusetts |
| 28 | William T. Berry | 26 | Son | Printer | Massachusetts |
| 29 | Elizabeth Sullivan | 55 | Head | Teacher | Massachusetts |
| 30 | Ellen Sullivan | 49 | Sister | Stenographer | Massachusetts |
| 31 | Francis J. Hardy | 43 | Head | Laborer | Massachusetts |
| 32 | Mary Hardy THIS PERSON | 44 | Wife | — | Massachusetts |
| 33 | Elizabeth M. Hardy | 13 | Daughter | — | Massachusetts |
| 34 | John E. Hardy | 11 | Son | — | Massachusetts |
| 35 | Kathleen Hardy | 10 | Daughter | — | Massachusetts |
| 36 | Michael Hardy | 8 | Son | — | Massachusetts |
| 37 | James D. Hardy | 6 | Son | — | Massachusetts |
| 38 | Thomas J. Hardy | 5 | Son | — | Massachusetts |
| 39 | Brendan Hardy | 3 | Son | — | Massachusetts |
| 40 | Catherine Hardy | 25 | Sister | — | Massachusetts |
| 41 | Francis Stone | 27 | Head | Stock Clerk | Massachusetts |
| 42 | Louise Stone | 23 | Sister | Stitcher | Massachusetts |
| 43 | Alfred Baudet | 37 | Head | Weaver | Canada French |
| 44 | Rose Baudet | 31 | Wife | — | Irish Free State |
| 45 | Vivian Baudet | 10 | Daughter | — | Canada French |
| 46 | Fidelio Beatrice | 50 | Head | Roller | Italy |
| 47 | Lucia Beatrice | 40 | Wife | — | Italy |
| 48 | Rose Beatrice | 10 | Daughter | — | Massachusetts |
| 49 | Louise Beatrice | 9 | Daughter | — | Massachusetts |
| 50 | Angelina Beatrice | 6 | Daughter | — | Massachusetts |
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)