JH
John Harrington — 1940 US Census Record
Model Tree available1940 United States Federal Census · Norfolk-County, Massachusetts
Our Model Tree links this John Harrington across the 1920, 1930 and 1940 US Censuses in Norfolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Mary & William — first a son (b.~1915), then head of a 7-person household.
Age 25
b. ~1915
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Norfolk-County, Massachusetts |
| Surname | Harrington |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | East Weymouth - Lovells Corner - Mayflower Park |
| 1935 Residence (County) | Norfolk |
| Additional Details | |
| Occupation | Electrician helper |
| Industry | Ship yard |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1250 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Electrician Helper |
| Township / Ward | East Weymouth Lovells Corner Mayflower Park |
| Est. Birth Year | ~1915 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Mary Harrington | Head | — | 53 | ~1887 |
| William Harrington | Son | — | 33 | ~1907 |
| Thomas Harrington | Son | — | 32 | ~1908 |
| Robert Harrington | Son | — | 30 | ~1910 |
| James Harrington | Son | — | 20 | ~1920 |
| George Harrington | Son | — | 21 | ~1919 |
| John Harrington | Son | — | 25 | ~1915 |
Census Appearances
1920
Norfolk, Massachusetts
Son, age 5
Norfolk, Massachusetts · implied b. ~1915 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harrington |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Norfolk, Massachusetts
Son, age 15
Norfolk, Massachusetts · implied b. ~1915 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harrington |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| 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
Norfolk-County, Massachusetts
Son, age 25
Norfolk-County, Massachusetts · implied b. ~1915 — 7 household members
| Surname | Harrington |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | East Weymouth - Lovells Corner - Mayflower Park |
| 1935 Residence (County) | Norfolk |
| Occupation | Electrician helper |
| Industry | Ship yard |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1250 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| 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 Harrington across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Harrington (~0.92 confidence) and father William Harrington (~0.92 confidence) and mother Rose Harrington (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Harrington
b. ~1887
Source mother
● Household
· direct · ~0.92
Father
William Harrington
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Rose Harrington
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Harrington
Son · 1940 · age 25 · b. ~1915 · Massachusetts
★ You are viewing this record
Sibling
William Harrington
Sibling · 1940 · age 33
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Harrington
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Harrington
Sibling · 1940 · age 32
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Harrington
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Harrington
Sibling · 1940 · age 21
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 — Norfolk-County, Massachusetts
Open full size
1940 US Federal Census — Norfolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01634-00433)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William Thurston | 11 | Grandson | — | Massachusetts |
| 42 | Anna Thurston | 9 | Granddaughter | — | Massachusetts |
| 43 | Stanley Worland | 27 | Head | Chipper + Caulker | Massachusetts |
| 44 | Velma Worland | 25 | Wife | — | Massachusetts |
| 45 | Janet Worland | 6 | Daughter | — | Massachusetts |
| 46 | Shirley Worland | 4 | Daughter | — | Massachusetts |
| 47 | Beatrice Peterson | 62 | Head | — | England |
| 48 | Edward T. Peterson | 24 | Son | Electrician Helper | Massachusetts |
| 49 | John J. Smith | 49 | Head | General Office | Massachusetts |
| 50 | Corinne E. Smith | 51 | Wife | Bookkeeper | Massachusetts |
| 51 | Willard Smith | 47 | Head | Sheet Maker | Massachusetts |
| 52 | Catherine Smith | 45 | Wife | Ironer | Sweden |
| 53 | Wrong In Formation From Neighbor | None | — | — | — |
| 54 | Gerald Sullivan | 34 | Head | Elec. Light Operator | Massachusetts |
| 55 | Alice Sullivan | 35 | Wife | — | Massachusetts |
| 56 | Gerald Sullivan | 10 | Son | — | Massachusetts |
| 57 | Edward Sullivan | 7 | Son | — | Massachusetts |
| 58 | William Sullivan | 4 | Son | — | Massachusetts |
| 59 | James Sullivan | 2 | Son | — | Massachusetts |
| 60 | Mary A. Harrington | 53 | Head | — | Massachusetts |
| 61 | William J. Harrington | 33 | Son | Clerk | Massachusetts |
| 62 | Thomas Harrington | 32 | Son | Time Keeper | Massachusetts |
| 63 | Robert J. Harrington | 30 | Son | Salesman | Massachusetts |
| 64 | John Harrington THIS PERSON | 25 | Son | Electrician Helper | Massachusetts |
| 65 | George Ab. Harrington | 21 | Son | Caddy | Massachusetts |
| 66 | James Harrington | 20 | Son | Delivery Boy | Massachusetts |
| 67 | Margaret Healy | 58 | Head | — | Massachusetts |
| 68 | Raymond Healy | 28 | Son | Salesman | Massachusetts |
| 69 | Paul Healy | 16 | Son | Laborer | Massachusetts |
| 70 | Madeline Healy | 15 | Daughter | Machine Operator | Massachusetts |
| 71 | Gerald Healy | 29 | Son | Tester | Massachusetts |
| 72 | Gerald Jr. Healy | 7 | Grandson | — | Massachusetts |
| 73 | Harold Strick | 44 | Head | Laborer | Massachusetts |
| 74 | Alice Strick | 41 | Wife | — | Massachusetts |
| 75 | Edward Strick | 13 | Son | Clerk | Massachusetts |
| 76 | Helen Strick | 11 | Daughter | Secretary | Massachusetts |
| 77 | Donald Strick | 3 | Son | — | Massachusetts |
| 78 | Raymond Bennett | 50 | Head | Executive | Massachusetts |
| 79 | Carl E. Pratt | 47 | Head | Chauffeur | Massachusetts |
| 80 | Elizabeth Pratt | 43 | Wife | Laundry Worker | Massachusetts |
Related Census Records
Pedigree Summary
John + 5 siblings
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)