JH
James Healy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this James Healy across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1910), then head of a 7-person household.
Age 30
b. ~1910
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Healy |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lowell City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Salesman |
| Industry | Retail store |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 780 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Salesman |
| Township / Ward | Lowell City |
| Est. Birth Year | ~1910 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Robert Healy | Head | — | 62 | ~1878 |
| Robert Healy | Son | — | 20 | ~1920 |
| Mary Healy | Spouse | — | 57 | ~1883 |
| James Healy | Son | — | 30 | ~1910 |
| Harold Healy | Son | — | 27 | ~1913 |
| Alice Healy | Daughter | — | 30 | ~1910 |
| Clare Healy | Daughter | — | 16 | ~1924 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 18
Middlesex, Massachusetts · implied b. ~1912 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Healey |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| 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 30
Middlesex-County, Massachusetts · implied b. ~1910 — 7 household members
| Surname | Healy |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lowell City |
| 1935 Residence (County) | Middlesex |
| Occupation | Salesman |
| Industry | Retail store |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 780 |
| 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 James Healy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Healy
Son · 1940 · age 30 · b. ~1910 · Massachusetts
★ You are viewing this record
Sibling
Robert Healy
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clare Healy
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Healy
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold 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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01691-00400)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Ryan | 24 | Head | Ward Maid | Massachusetts |
| 2 | Catherine Ryan | 23 | Daughter | Stitcher | Massachusetts |
| 3 | Robert Healy | 62 | Head | — | Eire |
| 4 | Mary Healy | 57 | Wife | — | Eire |
| 5 | James Healy THIS PERSON | 30 | Son | Salesman | Massachusetts |
| 6 | Alice Healy | 30 | Daughter | Winder | Massachusetts |
| 7 | Harold Healy | 27 | Son | Truck Driver | Massachusetts |
| 8 | Robert Healy | 20 | Son | Laborer | Massachusetts |
| 9 | Clare Healy | 16 | Daughter | — | Massachusetts |
| 10 | Daniel J. Shanahan | 45 | Head | — | Massachusetts |
| 11 | Daniel Jr. Shanahan | 20 | Son | W.P.A. | Massachusetts |
| 12 | Rose Shanahan | 18 | Daughter | — | Massachusetts |
| 13 | Loretta Shanahan | 15 | Daughter | — | Massachusetts |
| 14 | John Shanahan | 13 | Son | — | Massachusetts |
| 15 | George Shanahan | 12 | Son | — | Massachusetts |
| 16 | George Korbas | 41 | Head | Wpa | Greece |
| 17 | Mary Korbas | 41 | Wife | — | Greece |
| 18 | Pauline Korbas | 21 | Daughter | Lining Maker | Massachusetts |
| 19 | John Korbas | 19 | Son | Soda Clerk | Massachusetts |
| 20 | Ernest Korbas | 17 | Son | — | Massachusetts |
| 21 | Angeline Korbas | 17 | Daughter | — | Massachusetts |
| 22 | Harry Eliacopoulos | 55 | Head | Proprietor | Greece |
| 23 | Mary Eliacopoulos | 48 | Wife | — | Greece |
| 24 | William Eliacopoulos | 24 | Son | Block Cutter | Massachusetts |
| 25 | Ethel Eliacopoulos | 20 | Daughter | Stitcher | Massachusetts |
| 26 | James Eliacopoulos | 17 | Son | — | Massachusetts |
| 27 | Virginia Limberis | 55 | Sister-in-law | Laundress | Greece |
| 28 | Ephemia Kanellas | 50 | Head | — | Greece |
| 29 | Evangelis Kanellas | 22 | Son | Counterman | Massachusetts |
| 30 | James Kanellas | 18 | Son | Newswriter | Massachusetts |
| 31 | John Kanellas | 16 | Son | — | Massachusetts |
| 32 | — | None | — | — | — |
| 33 | Gideon Roy | 61 | Head | — | Canada-French |
| 34 | Rosa Roy | 61 | Wife | — | Canada-French |
| 35 | Alfred Brousseault | 69 | Brother-in-law | — | Canada-French |
| 36 | Andrew Theokas | 45 | Head | Presser | Greece |
| 37 | Athena Theokas | 39 | Wife | — | Greece |
| 38 | John Theokas | 19 | Son | Kitchen Helper | Massachusetts |
| 39 | Stella Theokas | 18 | Daughter | Bench Work | Massachusetts |
| 40 | Daniel Theokas | 17 | 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)