MH
Mary Hardy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Delaware-County, Pennsylvania
Our Model Tree links this Mary Hardy across the 1920, 1930 and 1940 US Censuses in Delaware-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1878), then head of a 5-person household.
Age 62
b. ~1878
Female
Head
Born: Newfoundland
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Delaware-County, Pennsylvania |
| Surname | Hardy |
| Given Name | Mary E. |
| Relationship to Head | head |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Widowed |
| Birthplace | Newfoundland |
| 1935 Residence (City) | Westview |
| 1935 Residence (County) | Chester |
| Naturalization Status | Naturalized |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 3 |
| 1935 Residence | Pennsylvania |
| Birth Country | Canada |
| Birthplace (normalized) | newfoundland |
| Township / Ward | Folcroft Boro |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Walters | Daughter | — | 29 | ~1911 |
| Mary Hardy | Head | — | 62 | ~1878 |
| Cannon Walters | Other | — | 35 | ~1905 |
| Joseph Walters | Other | — | 6 | ~1934 |
| Edward Hardy | Son | — | 19 | ~1921 |
Census Appearances
1920
Philadelphia, Pennsylvania
Spouse, age 45
Philadelphia, Pennsylvania · implied b. ~1875 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hardy |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Newfoundland |
| Year of Immigration | 1899 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Newfoundland |
| Mother's Birthplace | Newfoundland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Canada |
| Year of Naturalization | 1919 |
| Birthplace (normalized) | newfoundland |
1930
Delaware, Pennsylvania
Spouse, age 56
Delaware, Pennsylvania · implied b. ~1874 — 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 | 56 |
| Marital Status | Married |
| Birthplace | Newfoundland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1897 |
| Age at First Marriage | 22 |
| Father's Birthplace | Newfoundland |
| Mother's Birthplace | Newfoundland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Canada |
| Birthplace (normalized) | newfoundland |
1940
Delaware-County, Pennsylvania
Head, age 62
Delaware-County, Pennsylvania · implied b. ~1878 — 5 household members
| Surname | Hardy |
| Given Name | Mary E. |
| Relationship to Head | head |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Widowed |
| Birthplace | Newfoundland |
| 1935 Residence (City) | Westview |
| 1935 Residence (County) | Chester |
| Naturalization Status | Naturalized |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 3 |
| 1935 Residence | Pennsylvania |
| Birth Country | Canada |
| Birthplace (normalized) | newfoundland |
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 (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Hardy
Head · 1940 · age 62 · b. ~1878 · Pennsylvania
★ 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 — Delaware-County, Pennsylvania
Open full size
1940 US Federal Census — Delaware-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03491-00308)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary E. Hardy THIS PERSON | 62 | head | — | Newfoundland |
| 2 | Edward J. Hardy | 19 | son | — | Pennsylvania |
| 3 | Cannon J. Walters | 35 | son-in-law | Electrician | Maryland |
| 4 | Mary H. Walters | 29 | daughter | — | Pennsylvania |
| 5 | Joseph E. Walters | 6 | grandson | — | Pennsylvania |
| 6 | Ellis Benson | 29 | head | Mill Hand | Pennsylvania |
| 7 | Ella Harris | 52 | mother | — | Pennsylvania |
| 8 | Willetta Harris | 21 | sister | Housekeeper | Pennsylvania |
| 9 | Henry Harris | 14 | brother | Housekeeper | Maryland |
| 10 | Mary Mcconnell | 75 | aunt | — | Pennsylvania |
| 11 | Harold F. Dent | 30 | head | Truck Driver | Pennsylvania |
| 12 | Beatrice Dent | 29 | wife | — | Pennsylvania |
| 13 | Corrine Dent | 12 | daughter | — | Pennsylvania |
| 14 | Beverly Dent | 8 | daughter | — | Pennsylvania |
| 15 | Jacqueline Dent | 6 | daughter | — | Pennsylvania |
| 16 | Sheldon Dent | 4 | son | — | Pennsylvania |
| 17 | Patricia Dent | 1 | daughter | — | Pennsylvania |
| 18 | Joseph A. Lose | 49 | head | Odd Jobs | England |
| 19 | Annie M. Lose | 47 | wife | — | England |
| 20 | Margaret C. Lose | 16 | daughter | — | Pennsylvania |
| 21 | Joseph A. Lose | 14 | son | — | Pennsylvania |
| 22 | Patricia T. Lose | 12 | daughter | — | New Jersey |
| 23 | George B. Lose | 4 | son | — | Pennsylvania |
| 24 | John F. Lose | 3 | son | — | Pennsylvania |
| 25 | Edward Frank | 35 | head | Farmer | Pennsylvania |
| 26 | Gladys Frank | 30 | wife | — | Pennsylvania |
| 27 | Edward Frank | 3 | son | — | Pennsylvania |
| 28 | Albert Frank | 32 | brother | Farmer | Pennsylvania |
| 29 | Elizabeth Frank | 23 | sister-in-law | — | Pennsylvania |
| 30 | Albert Frank | 3 | nephew | — | Pennsylvania |
| 31 | Charles Frank | 2 | nephew | — | Pennsylvania |
| 32 | Marie Frank | 1 | niece | — | Pennsylvania |
| 33 | James Mcvey | 59 | head | Pasteurizer | Pennsylvania |
| 34 | Victorine Mcvey | 57 | wife | — | Pennsylvania |
| 35 | John Mcvey | 22 | son | — | Pennsylvania |
| 36 | Julia Mcvey | 19 | daughter | — | Pennsylvania |
| 37 | Charles Mcvey | 18 | son | Waiter | Pennsylvania |
| 38 | George Mcvey | 14 | son | — | Pennsylvania |
| 39 | William Singley | 61 | head | Hauling | Pennsylvania |
| 40 | Mary L. Singley | 56 | wife | — | Pennsylvania |
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)