JC
John Curran — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this John Curran across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 8-person household.
Age 14
b. ~1926
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Curran |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Highest Grade | Hs 2 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1926 |
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 |
|---|---|---|---|---|
| Elizabeth Curran | Daughter | — | 5 | ~1935 |
| Claire Curran | Daughter | — | 11 | ~1929 |
| Robert Curran | Son | — | 15 | ~1925 |
| Louise Curran | Daughter | — | 12 | ~1928 |
| John Curran | Son | — | 14 | ~1926 |
| Louise Curran | Spouse | — | 41 | ~1899 |
| Alice Curran | Daughter | — | 17 | ~1923 |
| John Curran | Head | — | 52 | ~1888 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 4
Suffolk, Massachusetts · implied b. ~1926 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Curran |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 14
Suffolk-County, Massachusetts · implied b. ~1926 — 8 household members
| Surname | Curran |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Highest Grade | Hs 2 |
| 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 Curran across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Curran
Son · 1940 · age 14 · b. ~1926 · Massachusetts
★ You are viewing this record
Sibling
Louise Curran
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Curran
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Claire Curran
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Curran
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Curran
Sibling · 1940 · age 5
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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01664-00809)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Bond | 51 | Head | Accountant | Massachusetts |
| 2 | John J. Curran | 52 | Head | Machinist | Massachusetts |
| 3 | Louise Curran | 41 | Wife | — | Massachusetts |
| 4 | John Curran THIS PERSON | 14 | Son | — | Massachusetts |
| 5 | Alice Curran | 17 | Daughter | Truck Driver | Massachusetts |
| 6 | Robert Curran | 15 | Son | Binder | Massachusetts |
| 7 | Louise Curran | 12 | Daughter | — | Massachusetts |
| 8 | Claire Curran | 11 | Daughter | — | Massachusetts |
| 9 | Elizabeth Curran | 5 | Daughter | — | Massachusetts |
| 10 | Herbert Hagan | 68 | Head | — | Massachusetts |
| 11 | Genevieve Hagan | 45 | Wife | — | Massachusetts |
| 12 | Genevieve Hagan | 8 | Daughter | — | Massachusetts |
| 13 | Walter Regan | 67 | Head | — | Massachusetts |
| 14 | Alice Regan | 64 | Wife | — | Massachusetts |
| 15 | George Regan | 22 | Son | Laborer | Massachusetts |
| 16 | Walter Regan | 26 | Son | Apprentice Electrician'S Helper | Massachusetts |
| 17 | Ann G. Mulhern | 43 | Head | Helper | Massachusetts |
| 18 | Edna Mulhern | 17 | Daughter | Cleaner | Massachusetts |
| 19 | Robert Mulhern | 12 | Son | — | Massachusetts |
| 20 | Frederick S. Roddis | 83 | Head | — | Maine |
| 21 | Alma Roddis | 67 | Wife | — | Massachusetts |
| 22 | Matilda Haufler | 61 | Head | — | Germany |
| 23 | William Haufler | 20 | Son | — | Massachusetts |
| 24 | Nora G. Bowen | 81 | Head | Laborer | Eire |
| 25 | John J. O'Donnell | 64 | Head | — | Eire |
| 26 | Annie G. O'Donnell | 42 | Wife | — | Massachusetts |
| 27 | John J. Jr. O'Donnell | 22 | Son | — | Massachusetts |
| 28 | Mary O'Donnell | 19 | Daughter | Clerk | Massachusetts |
| 29 | Delia O'Donnell | 17 | Daughter | Mimeograph Operator | Massachusetts |
| 30 | Michael O'Donnell | 15 | Son | — | Massachusetts |
| 31 | Charles Smolinski | 45 | Head | — | Poland |
| 32 | Blanche Smolinski | 44 | Wife | — | Poland |
| 33 | Joseph Smolinski | 25 | Son | — | Massachusetts |
| 34 | Priscilla Smolinski | 14 | Daughter | Laborer | Massachusetts |
| 35 | Genevieve Smolinski | 16 | Daughter | — | Massachusetts |
| 36 | Henry Smolinski | 14 | Son | — | Massachusetts |
| 37 | Stanley Smolinski | 6 | Son | — | Massachusetts |
| 38 | Thomas J. Coyne | 44 | Head | Truck Driver | Massachusetts |
| 39 | Mary Coyne | 35 | Wife | — | Eire |
Related Census Records
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)