JH
John Healey — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this John Healey across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents William & William — first a son (b.~1916), then head of a 4-person household.
Age 24
b. ~1916
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Healey |
| Given Name | John B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Laborer |
| Industry | Shipyard |
| Class of Worker | PW |
| Hours Worked | 25 |
| Income (1939) | 432 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Laborer |
| Township / Ward | Malden City |
| Est. Birth Year | ~1916 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Leo Healey | Son | — | 22 | ~1918 |
| Mary Healey | Head | — | 45 | ~1895 |
| John Healey | Son | — | 24 | ~1916 |
| William Healey | Son | — | 25 | ~1915 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 3
Middlesex, Massachusetts · implied b. ~1917 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Healey |
| Given Name | John B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
Son, age 14
Middlesex, Massachusetts · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Healy |
| Given Name | John B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 24
Middlesex-County, Massachusetts · implied b. ~1916 — 4 household members
| Surname | Healey |
| Given Name | John B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden City |
| 1935 Residence (County) | Middlesex |
| Occupation | Laborer |
| Industry | Shipyard |
| Class of Worker | PW |
| Hours Worked | 25 |
| Income (1939) | 432 |
| Highest Grade | Hs 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 Healey across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Healey (~0.92 confidence) and father William Healy (~0.92 confidence) and mother Mary Healey (~0.92 confidence) and mother Mary Healey (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Healey
b. ~1888
Source father
● Household
· direct · ~0.92
Father
William Healy
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Mary Healey
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Mary Healey
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Healey
Son · 1940 · age 24 · b. ~1916 · Massachusetts
★ You are viewing this record
Sibling
William Healey
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Healey
Sibling · 1940 · age 22
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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01608-00671)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lucy N. Stockwell | 79 | Head | — | Massachusetts |
| 42 | Emma Stockwell | 82 | Sister | — | Massachusetts |
| 43 | Mary Healey | 45 | Head | — | Massachusetts |
| 44 | William J. Healey | 25 | Son | Truck Driver | Massachusetts |
| 45 | John B. Healey THIS PERSON | 24 | Son | Laborer | Massachusetts |
| 46 | Leo A. Healey | 22 | Son | Electricians Helper | Massachusetts |
| 47 | Margaret Slattery | 65 | Head | Lecturer | Massachusetts |
| 48 | Florence Slattery | 55 | Sister | School Teacher | Massachusetts |
| 49 | Annie Slattery | 57 | Sister | School Teacher | Massachusetts |
| 50 | Edward B. Steed | 34 | Head | Patrolman | Massachusetts |
| 51 | Kathleen M. Steed | 35 | Wife | — | Massachusetts |
| 52 | Charles T. Miller | 33 | Head | Truck Driver | Massachusetts |
| 53 | Mary M. Miller | 35 | Wife | Bookkeeper | Massachusetts |
| 54 | Edward J. Moore | 38 | Head | Salesman | Massachusetts |
| 55 | Lillian M. Moore | 38 | Wife | — | Massachusetts |
| 56 | Lillian M. Moore | 16 | Daughter | — | Massachusetts |
| 57 | Gustav Lindstrom | 35 | Head | Electrician | Sweden |
| 58 | Elvira J. Lindstrom | 37 | Wife | — | Sweden |
| 59 | Irene Lindstrom | 4 | Daughter | — | Massachusetts |
| 60 | Nettie M. Chapman | 62 | Head | — | New Hampshire |
| 61 | Terry A. Chapman | 29 | Son | Storekeeper | Massachusetts |
| 62 | Eleanor Johnson | 30 | Head | Secretary | Massachusetts |
| 63 | Howard J. Kennedy | 27 | Head | Engineering | Maine |
| 64 | Lois M. Kennedy | 20 | Wife | — | Maine |
| 65 | Joseph Freeberg | 50 | Head | Auctioneer | Russia |
| 66 | Maria M. Freeberg | 46 | Wife | Baby Bazaar | Massachusetts |
| 67 | Marcia M. Freeberg | 7 | Daughter | — | Massachusetts |
| 68 | Jennie Gartley | 33 | Housekeeper | Housekeeper | Massachusetts |
| 69 | C. Fred Folsom | 66 | Head | Coffee Roaster | Massachusetts |
| 70 | Nellie Folsom | 70 | Wife | — | Maine |
| 71 | Howard Fleering | 46 | Head | Textile Machine | Maine |
| 72 | Marie A. Fleering | 45 | Wife | — | Maine |
| 73 | Nancy M. Fleering | 15 | Daughter | — | Massachusetts |
| 74 | Edith B. Newton | 51 | Head | Clerical | Vermont |
| 75 | Ruth E. Newton | 24 | Daughter | Grad. Reg. Nurse | Massachusetts |
| 76 | R. Seth Jr. Newton | 21 | Son | Geology Dept | Massachusetts |
| 77 | Mary Belle Pease | 84 | Mother | — | Rhode Island |
| 78 | John J. Campbell | 33 | Head | Deliveryman | Massachusetts |
Related Census Records
Pedigree Summary
John + 2 siblings
Gen 1 · 4 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)