JH
John Hardy — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this John Hardy across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Helen & John — first a head (b.~1911), then head of a 8-person household.
Age 29
b. ~1911
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Hardy |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Salesman |
| Industry | Milk Dealer |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 2080 |
| Highest Grade | No 6 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Salesman |
| Township / Ward | Boston City |
| Est. Birth Year | ~1911 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Esdale | Daughter | — | 12 | ~1928 |
| John Hardy | Head | — | 29 | ~1911 |
| John Esdale | Son | — | 15 | ~1925 |
| James Esdale | Son | — | 17 | ~1923 |
| Harold Esdale | Son | — | 14 | ~1926 |
| John Hardy | Son | — | 1 | ~1939 |
| Robert Esdale | Son | — | 18 | ~1922 |
| Irma Hardy | Spouse | — | 28 | ~1912 |
Census Appearances
1920
Suffolk, Massachusetts
Son, age 9
Suffolk, Massachusetts · implied b. ~1911 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hardy |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Son, age 20
Suffolk, Massachusetts · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hardy |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Truck Driver |
| Industry | Laundry |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Head, age 29
Suffolk-County, Massachusetts · implied b. ~1911 — 8 household members
| Surname | Hardy |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Occupation | Salesman |
| Industry | Milk Dealer |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 2080 |
| Highest Grade | No 6 |
| 1935 Residence | Same Place |
| 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 John Hardy across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Helen Hardy (~0.92 confidence) and father John Hardy (~0.92 confidence) and mother Helen Hardy (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Helen Hardy
b. ~1885
Source mother
● Household
· direct · ~0.92
Father
John Hardy
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Helen Hardy
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Hardy
Head · 1940 · age 29 · b. ~1911 · Massachusetts
★ 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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01672-00084)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Patrick Keefe | 46 | Head | Truckman | Massachusetts |
| 42 | Ruth Keefe | 37 | Wife | — | New Hampshire |
| 43 | Paul Keefe | 19 | Son | — | Massachusetts |
| 44 | Pauline Keefe | 17 | Daughter | New Worker | Maine |
| 45 | William Keefe | 16 | Son | New Worker | Maine |
| 46 | Eva Keefe | 15 | Daughter | — | Maine |
| 47 | Patricia Keefe | 2 | Daughter | — | Massachusetts |
| 48 | John Ryan | 36 | Head | Dish Cutter | Massachusetts |
| 49 | Catherine Ryan | 32 | Wife | — | Scotland |
| 50 | Richard Ryan | 13 | Son | — | Massachusetts |
| 51 | Jean Ryan | 6 | Daughter | — | Massachusetts |
| 52 | Barbara Ryan | 3 | Daughter | — | Massachusetts |
| 53 | Myer Heller | 71 | Head | — | Russia |
| 54 | Ida Heller | 68 | Wife | — | Russia |
| 55 | Jacob Heller | 42 | Son | School Teacher | Massachusetts |
| 56 | Anna Heller | 38 | Daughter | Stenographer | Massachusetts |
| 57 | Max Heller | 37 | Son | Delivery Man | Massachusetts |
| 58 | Arin Heller | 35 | Son | Civil Engineer | Massachusetts |
| 59 | Merym Heller | 33 | Daughter | Typist | Massachusetts |
| 60 | John H. Hardy THIS PERSON | 29 | Head | Salesman | Massachusetts |
| 61 | Irma Hardy | 28 | Wife | — | Massachusetts |
| 62 | John Hardy | 1 | Son | — | Massachusetts |
| 63 | Robert Esdale | 18 | Son | New Worker | Massachusetts |
| 64 | James Esdale | 17 | Son | New Worker | Massachusetts |
| 65 | John Esdale | 15 | Son | — | Massachusetts |
| 66 | Harold Esdale | 14 | Son | — | Massachusetts |
| 67 | Dorothy Esdale | 12 | Daughter | — | Massachusetts |
| 68 | Rubin Corman | 27 | Head | Lumber Dealer | Massachusetts |
| 69 | Barbara Corman | 24 | Wife | — | Massachusetts |
| 70 | Janet Corman | 4 | Daughter | — | Massachusetts |
| 71 | Stephen Corman | 2 | Son | — | Massachusetts |
| 72 | Max Becker | 51 | Head | Laborer | Russia |
| 73 | Annie Becker | 40 | Wife | — | Poland |
| 74 | Bessie Becker | 15 | Daughter | — | Massachusetts |
| 75 | Harold Becker | 11 | Son | — | Massachusetts |
| 76 | John L. Mckinnon | 39 | Head | Asst. Supervisor | Massachusetts |
| 77 | Mary Mckinnon | 34 | Wife | — | Massachusetts |
| 78 | John Mckinnon | 5 | Son | — | Massachusetts |
| 79 | Patricia Mckinnon | 3 | Daughter | — | Massachusetts |
| 80 | Ann Mckinnon | 1 | Daughter | — | Massachusetts |
Pedigree Summary
John
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)