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John Roche — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this John Roche across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 7-person household.
Age 11
b. ~1929
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Roche |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1929 |
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 |
|---|---|---|---|---|
| James Roche | Son | — | 5 | ~1935 |
| Gerald Roche | Son | — | 7 | ~1933 |
| Mary Roche | Daughter | — | 9 | ~1931 |
| George Roche | Son | — | 3 | ~1937 |
| John Roche | Son | — | 11 | ~1929 |
| Margaret Roche | Spouse | — | 37 | ~1903 |
| Michael Roche | Head | — | 40 | ~1900 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 1
Suffolk, Massachusetts · implied b. ~1929 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Roache |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 11
Suffolk-County, Massachusetts · implied b. ~1929 — 7 household members
| Surname | Roche |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Income (1939) | 0 |
| Highest Grade | No 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 Roche across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Roche
Son · 1940 · age 11 · b. ~1929 · Massachusetts
★ You are viewing this record
Sibling
George Roche
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gerald Roche
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Roche
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Roche
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
40 people indexed on this census page (nara:1940:m-t0627-01668-00290)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elizabeth Flannery | 64 | Head | — | Eire |
| 2 | Mary E. Flannery | 40 | Daughter | Clerk-Teller | Massachusetts |
| 3 | John F. Flannery | 41 | Son | Salesman | Massachusetts |
| 4 | John F. Cass | 67 | Head | Printer | Massachusetts |
| 5 | Mary F. Cass | 66 | Wife | — | England |
| 6 | Mae Cass | 38 | Daughter | Shoe Stitcher | Massachusetts |
| 7 | Mildred Cass | 37 | Daughter | Packer | Massachusetts |
| 8 | Edward Cass | 25 | Son | Helper | Massachusetts |
| 9 | John Jr. Johns | 30 | Head | Truck Driver | Massachusetts |
| 10 | Bernice Johns | 29 | Wife | — | Massachusetts |
| 11 | William E. Johns | 1 | Son | — | Massachusetts |
| 12 | William J. Crosby | 40 | Head | Cook | Massachusetts |
| 13 | Helen Crosby | 38 | Wife | — | Massachusetts |
| 14 | Thomas Corbett | 25 | Head | Foreman | Massachusetts |
| 15 | Adelaide Corbett | 24 | Wife | — | Massachusetts |
| 16 | Joan Corbett | 5 | Daughter | — | Massachusetts |
| 17 | Mary Corbett | 4 | Daughter | — | Massachusetts |
| 18 | John Corbett | 2 | Son | — | Massachusetts |
| 19 | James Corbett | 1 | Son | — | Massachusetts |
| 20 | Michael Roche | 40 | Head | Laborer | Eire |
| 21 | Margaret Roche | 37 | Wife | — | Eire |
| 22 | John Roche THIS PERSON | 11 | Son | — | Massachusetts |
| 23 | Mary Roche | 9 | Daughter | — | Massachusetts |
| 24 | Gerald Roche | 7 | Son | — | Massachusetts |
| 25 | James Roche | 5 | Son | — | Massachusetts |
| 26 | George Roche | 3 | Son | — | Massachusetts |
| 27 | John Conway | 37 | Head | Engineer | Montana |
| 28 | Anne M. Conway | 39 | Wife | — | Canada English |
| 29 | Anne M. Conway | 4 | Daughter | — | Massachusetts |
| 30 | Theodore Bernard | 23 | Head | Auto Mechanic | Massachusetts |
| 31 | Theresa Bernard | 22 | Wife | — | Massachusetts |
| 32 | Theodore Jr. Bernard | 0 | Son | — | Massachusetts |
| 33 | Arnold P. Driscoll | 51 | Head | Steamfitter | Massachusetts |
| 34 | Arnold P. Jr. Driscoll | 21 | Son | Clerk | Massachusetts |
| 35 | George Driscoll | 19 | Son | Clerk | Massachusetts |
| 36 | Dorothy Driscoll | 16 | Daughter | — | Massachusetts |
| 37 | Daniel Driscoll | 15 | Son | — | Massachusetts |
| 38 | Helen Driscoll | 12 | Daughter | — | Massachusetts |
| 39 | Martin J. Bennett | 33 | Head | Utility Man | Eire |
| 40 | Celia Bennett | 32 | Wife | — | Eire |
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)