MH
Mary Hardy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Washington-County, Maryland
Our Model Tree links this Mary Hardy across the 1920, 1930 and 1940 US Censuses in Washington-County, Maryland (XGBoost, ~Confirmed) — first a spouse (b.~1891), then head of a 5-person household.
Age 49
b. ~1891
Female
Spouse
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Maryland |
| Surname | Hardy |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 2 |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Occupation | Housekeeper |
| Industry | Own Family |
| Class of Worker | NP |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Housekeeper |
| Township / Ward | Election District 2 |
| Est. Birth Year | ~1891 |
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 |
|---|---|---|---|---|
| Imogene Hardy | Daughter | — | 8 | ~1932 |
| Irene Hardy | Daughter | — | 15 | ~1925 |
| Bruce Hardy | Head | — | 54 | ~1886 |
| Wm Hardy | Son | — | 5 | ~1935 |
| Mary Hardy | Spouse | — | 49 | ~1891 |
Census Appearances
1920
Washington, Maryland
Spouse, age 28
Washington, Maryland · implied b. ~1892 — 3 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 | 28 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Virginia |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Washington, Maryland
Spouse, age 39
Washington, Maryland · implied b. ~1891 — 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 | 39 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 20 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Virginia |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Washington-County, Maryland
Spouse, age 49
Washington-County, Maryland · implied b. ~1891 — 5 household members
| Surname | Hardy |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 2 |
| 1935 Residence (County) | Washington |
| Occupation | Housekeeper |
| Industry | Own Family |
| Class of Worker | NP |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Hardy
Spouse · 1940 · age 49 · b. ~1891 · Maryland
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Washington-County, Maryland
Open full size
1940 US Federal Census — Washington-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01562-00224)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lester F. Marshall | 26 | Head | Laborer | Maryland |
| 2 | Naomi G. Marshall | 24 | Wife | Housekeeper | Maryland |
| 3 | Lester W. Marshall | 2 | Son | — | Maryland |
| 4 | Alvey T. Homes | 60 | Head | Laborer | Maryland |
| 5 | Cora S. Homes | 52 | Wife | Housekeeper | Maryland |
| 6 | Russel P. Homes | 16 | Son | Laborer | Maryland |
| 7 | Harry Homes | 14 | Son | — | Maryland |
| 8 | Melvin M. Smith | 33 | Head | Laborer | Maryland |
| 9 | Elna D. Smith | 32 | Wife | Housekeeper | Maryland |
| 10 | Catherine V. Smith | 16 | Daughter | House Keeper | Virginia |
| 11 | Melvin L. Smith | 14 | Son | — | Maryland |
| 12 | Betty L. Smith | 13 | Daughter | — | Maryland |
| 13 | Edward Smith | 9 | Son | — | Maryland |
| 14 | Charles Smith | 6 | Son | — | Maryland |
| 15 | Lester Smith | 2 | Son | — | Maryland |
| 16 | Louis A. Strike | 38 | Head | Clerk | Maryland |
| 17 | Manda C. Strike | 57 | Wife | Housekeeper | Maryland |
| 18 | Floyd A. Strike | 21 | Son | Driver | Maryland |
| 19 | Joseph F. Nick | 49 | Head | Laborer | Maryland |
| 20 | Maude Nick | 45 | Wife | House Keeper | Maryland |
| 21 | Thristen F. Nick | 20 | Son | Laborer | Maryland |
| 22 | Elizabeth M. Nick | 18 | Daughter | Laborer | Maryland |
| 23 | Gilbert L. Nick | 16 | Son | — | Maryland |
| 24 | Deloris M. Nick | 12 | Daughter | — | Maryland |
| 25 | Willis Myers | 21 | Son-in-law | Laborer | Maryland |
| 26 | Aleshia M. Myers | 21 | Daughter | House Keeper | Maryland |
| 27 | Charles E. Metz | 35 | Head | Laborer | Maryland |
| 28 | Catherine V. Metz | 22 | Wife | House Keeper | Maryland |
| 29 | Charles W. Metz | 8 | Son | — | Maryland |
| 30 | Mary L. Metz | 2 | Daughter | — | Maryland |
| 31 | Elworth F. Elworth | 25 | Head | — | Maryland |
| 32 | Audrey M. Elworth | 24 | Wife | House Keeper | Maryland |
| 33 | George S. Elworth | 6 | Son | — | Maryland |
| 34 | Robert A. Elworth | 3 | Son | — | Maryland |
| 35 | Jerome E. Elworth | 2 | Son | — | Maryland |
| 36 | Bruce W. Hardy | 54 | Head | Laborer | Maryland |
| 37 | Mary E. Hardy THIS PERSON | 49 | Wife | Housekeeper | Maryland |
| 38 | Irene Hardy | 15 | Daughter | — | Maryland |
| 39 | Imogene B. Hardy | 8 | Daughter | — | Maryland |
| 40 | Wm S. Hardy | 5 | Son | — | Maryland |
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)