JH
John Healy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Worcester-County, Massachusetts
Our Model Tree links this John Healy across the 1930 and 1940 US Censuses in Worcester-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1921), then head of a 9-person household.
Age 19
b. ~1921
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Worcester-County, Massachusetts |
| Surname | Healy |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester city |
| 1935 Residence (County) | Worcester |
| Additional Details | |
| Occupation | Milkman |
| Industry | Dairy Co. |
| Class of Worker | PW |
| Hours Worked | 72 |
| Income (1939) | 624 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Milkman |
| Township / Ward | Worcester City |
| Est. Birth Year | ~1921 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Jane Healy | Daughter | — | 5 | ~1935 |
| Margaret Healy | Daughter | — | 29 | ~1911 |
| Mary Healy | Daughter | — | 3 | ~1937 |
| Dorothy Healy | Daughter | — | 21 | ~1919 |
| Francis Healy | Daughter | — | 24 | ~1916 |
| Edward Healy | Head | — | 56 | ~1884 |
| George Healy | Son | — | 27 | ~1913 |
| John Healy | Son | — | 19 | ~1921 |
| Adelaide Healy | Spouse | — | 52 | ~1888 |
Census Appearances
1930
Worcester, Massachusetts
Son, age 8
Worcester, Massachusetts · implied b. ~1922 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Healley |
| Given Name | John H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Worcester-County, Massachusetts
Son, age 19
Worcester-County, Massachusetts · implied b. ~1921 — 9 household members
| Surname | Healy |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester city |
| 1935 Residence (County) | Worcester |
| Occupation | Milkman |
| Industry | Dairy Co. |
| Class of Worker | PW |
| Hours Worked | 72 |
| Income (1939) | 624 |
| Highest Grade | H 4 |
| 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 Healy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Healy
Son · 1940 · age 19 · b. ~1921 · Massachusetts
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Sibling
Dorothy Healy
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Healy
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Healy
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Healy
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jane Healy
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Healy
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Worcester-County, Massachusetts
Open full size
1940 US Federal Census — Worcester-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01717-00166)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Chester Kamecki | 46 | Head | Cost Clerk | Massachusetts |
| 42 | Joseph Kamecki | 20 | Son | Orderly Nurse | Massachusetts |
| 43 | Victor Kamecki | 59 | Cousin | Laborer | Poland |
| 44 | Alex Krzynowek | 65 | Lodger | Machinist | Poland |
| 45 | Bernard A. Redican | 65 | Head | Plumber | Massachusetts |
| 46 | Margaret Redican | 61 | Wife | — | Massachusetts |
| 47 | Morris White | 47 | Head | Salesman | Russia |
| 48 | Rebecca B. White | 43 | Wife | — | Austria |
| 49 | Jack E. White | 21 | Son | Salesman | New Jersey |
| 50 | Yale White | 19 | Son | Salesman | New Jersey |
| 51 | Morton White | 18 | Son | — | New Jersey |
| 52 | Theodore White | 10 | Son | — | Massachusetts |
| 53 | Harold White | 4 | Son | — | Massachusetts |
| 54 | Joseph Davidonis | 46 | Head | Grocer | Lithuania |
| 55 | Elizabeth Davidonis | 45 | Wife | — | Lithuania |
| 56 | Aldona Davidonis | 13 | Daughter | — | Massachusetts |
| 57 | Edward Healy | 56 | Head | Special Police | Massachusetts |
| 58 | Adelaide A. Healy | 52 | Wife | — | Massachusetts |
| 59 | Margaret Healy | 29 | Daughter | Heel Packer | Massachusetts |
| 60 | George Healy | 27 | Son | Trimmer | Massachusetts |
| 61 | Francis Healy | 24 | Daughter | Clerk | Massachusetts |
| 62 | Dorothy Healy | 21 | Daughter | At Home | Massachusetts |
| 63 | John Healy THIS PERSON | 19 | Son | Milkman | Massachusetts |
| 64 | Jane Healy | 5 | Daughter | — | Massachusetts |
| 65 | Mary Healy | 3 | Daughter | — | Massachusetts |
| 66 | Francis P. Dolan | 35 | Head | Steel Foreman | Massachusetts |
| 67 | Anna J. Dolan | 35 | Wife | — | Massachusetts |
| 68 | Dorothy Dolan | 11 | Daughter | — | Massachusetts |
| 69 | Anna Frances Dolan | 7 | Daughter | — | Massachusetts |
| 70 | Francis T. Dolan | 5 | Son | — | Massachusetts |
| 71 | Maurice Mcgrath | 77 | Father-in-law | — | Irish Free State |
| 72 | J. Thomas | 23 | Boarder | Shipping Clerk | Massachusetts |
| 73 | Joseph Lewandosk | 54 | Head | Molder | Poland |
| 74 | Josephine Lewandosk | 47 | Wife | — | Poland |
| 75 | Thaddeus Lewandosk | 24 | Son | — | Massachusetts |
| 76 | Sophia Lewandosk | 20 | Daughter | — | Massachusetts |
| 77 | Raymond Lewandosk | 13 | Son | — | Massachusetts |
| 78 | Frank Szczepucha | 33 | Head | Meat Salesman | Poland |
| 79 | Mary E. Szczepucha | 28 | Wife | — | Massachusetts |
| 80 | Frank Szczepucha | 8 | Son | — | Massachusetts |
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)