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John Roach — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this John Roach across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1892), then head of a 9-person household.
Age 48
b. ~1892
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Roach |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Tree surgeon |
| Industry | Tree preservation |
| Class of Worker | GW |
| Hours Worked | 2 |
| Income (1939) | 1000 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Tree Surgeon |
| Township / Ward | Boston |
| Est. Birth Year | ~1892 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Roach | Daughter | — | 9 | ~1931 |
| Irene Roach | Daughter | — | 13 | ~1927 |
| Barbara Roach | Daughter | — | 6 | ~1934 |
| John Roach | Head | — | 48 | ~1892 |
| Albert Roach | Son | — | 24 | ~1916 |
| Robert Roach | Son | — | 15 | ~1925 |
| Edward Roach | Son | — | 17 | ~1923 |
| Thomas Roach | Son | — | 12 | ~1928 |
| Hazel Roach | Spouse | — | 46 | ~1894 |
Census Appearances
1930
Suffolk, Massachusetts
Head, age 38
Suffolk, Massachusetts · implied b. ~1892 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Roche |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 27 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | Lineman |
| Industry | Telephone Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 38 |
| Radio Set | R |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Head, age 48
Suffolk-County, Massachusetts · implied b. ~1892 — 9 household members
| Surname | Roach |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Occupation | Tree surgeon |
| Industry | Tree preservation |
| Class of Worker | GW |
| Hours Worked | 2 |
| Income (1939) | 1000 |
| 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 John Roach across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Roach
Head · 1940 · age 48 · b. ~1892 · Massachusetts
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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-t0627-01682-00222)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary L. Contel | 39 | Daughter | Packer | Massachusetts |
| 42 | Sarah H. Contel | 34 | Daughter | Typist | Massachusetts |
| 43 | Ulysses S. Query | 29 | Head | Counter Man | Massachusetts |
| 44 | Hilda Query | 35 | Wife | — | Canada French |
| 45 | Jeannette Query | 6 | Daughter | — | Massachusetts |
| 46 | James J. Mitton | 37 | Head | Fireman | Canada English |
| 47 | Mary Mitton | 35 | Wife | — | Canada English |
| 48 | Geraldine Mitton | 12 | Daughter | — | Massachusetts |
| 49 | Jacqueline Mitton | 11 | Daughter | — | Massachusetts |
| 50 | Irene Mitton | 10 | Daughter | — | Massachusetts |
| 51 | John Mitton | 4 | Son | — | Massachusetts |
| 52 | Lawrence R. Newton | 28 | Head | Counter Man | Massachusetts |
| 53 | Jeannette Newton | 27 | Wife | — | Massachusetts |
| 54 | Patricia Newton | 3 | Daughter | — | Massachusetts |
| 55 | Lawrence R. Newton | 2 | Son | — | Massachusetts |
| 56 | Arthur Newton | 0 | Son | — | Massachusetts |
| 57 | John J. Roach THIS PERSON | 48 | Head | Tree Surgeon | Massachusetts |
| 58 | Hazel M. Roach | 46 | Wife | — | Canada English |
| 59 | Albert Roach | 24 | Son | Chauffeur | Massachusetts |
| 60 | Edward Roach | 17 | Son | Carpenter | Massachusetts |
| 61 | Robert Roach | 15 | Son | New Worker | Massachusetts |
| 62 | Irene Roach | 13 | Daughter | — | Massachusetts |
| 63 | Thomas Roach | 12 | Son | — | Massachusetts |
| 64 | Elizabeth Roach | 9 | Daughter | — | Massachusetts |
| 65 | Barbara Roach | 6 | Daughter | — | Massachusetts |
| 67 | Daniel J. Mcpartland | 25 | Head | Milkman | Massachusetts |
| 68 | Raffaella Mcpartland | 27 | Wife | — | Massachusetts |
| 69 | Michael J. Mcdonald | 40 | Head | Auto Mechanic | Canada English |
| 70 | Mary Mcdonald | 45 | Wife | — | Canada English |
| 71 | John J. Mcdonald | 11 | Son | — | Massachusetts |
| 72 | Gerard A. Mcdonald | 8 | Son | — | Massachusetts |
| 73 | Mary E. Mcdonald | 1 | Daughter | — | Massachusetts |
| 74 | Gardner S. Learney | 44 | Head | Fireman | Massachusetts |
| 75 | Grace S. Learney | 44 | Wife | — | Massachusetts |
| 76 | Walter Learney | 22 | Son | Delivery Boy | Massachusetts |
| 77 | Clifton G. Learney | 20 | Son | Attendant | Massachusetts |
| 78 | Mary R. Learney | 16 | Daughter | — | Massachusetts |
| 79 | Pauline Learney | 14 | Daughter | — | Massachusetts |
| 80 | Priscilla Learney | 11 | Daughter | — | 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)