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William Roach — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this William Roach across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1918), then head of a 7-person household.
Age 22
b. ~1918
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Roach |
| Given Name | William J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Pressman |
| Industry | Printing Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 972 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Pressman |
| Township / Ward | Boston |
| Est. Birth Year | ~1918 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Nora Roach | Other | — | 55 | ~1885 |
| Joseph Roach | Son | — | 4 | ~1936 |
| William Roach | Son | — | 22 | ~1918 |
| Mary Roach | Head | — | 57 | ~1883 |
| Susan Roach | Daughter | — | 6 | ~1934 |
| Joseph Roach | Son | — | 34 | ~1906 |
| Leo Roach | Son | — | 37 | ~1903 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 11
Suffolk, Massachusetts · implied b. ~1919 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Roache |
| Given Name | William J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 22
Suffolk-County, Massachusetts · implied b. ~1918 — 7 household members
| Surname | Roach |
| Given Name | William J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Occupation | Pressman |
| Industry | Printing Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 972 |
| 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 William Roach across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Roach
Son · 1940 · age 22 · b. ~1918 · Massachusetts
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Sibling
Joseph Roach
Sibling · 1940 · age 34
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Susan Roach
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Roach
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Roach
Sibling · 1940 · age 37
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-t0627-01664-00184)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Harris | 11 | Son | — | Massachusetts |
| 2 | Claire Harris | 5 | Daughter | — | Massachusetts |
| 3 | Patricia Harris | 2 | Daughter | — | Massachusetts |
| 4 | Robert Cole | 39 | Head | Laborer | Massachusetts |
| 5 | Ann A. Cole | 37 | Wife | — | Massachusetts |
| 6 | Timothy Sullivan | 30 | Head | Taxi Driver | Massachusetts |
| 7 | Zoe A. Sullivan | 25 | Wife | — | Canada-English |
| 8 | James Sullivan | 5 | Son | — | Massachusetts |
| 9 | Gerald Sullivan | 1 | Son | — | Massachusetts |
| 10 | Josephine Pozarka | 27 | Head | — | California |
| 11 | Delores Pozarka | 10 | Daughter | — | Massachusetts |
| 12 | John R. Pozarka | 6 | Son | — | Massachusetts |
| 13 | Viola Zable | 44 | Mother | Stitcher | Lithuania |
| 14 | Philip Davis | 12 | Lodger | — | Massachusetts |
| 15 | Constantine Antonelli | 52 | Head | Laborer | Italy |
| 16 | Mary Antonelli | 49 | Wife | — | Canada-English |
| 17 | Joseph Antonelli | 21 | Son | New Worker | Massachusetts |
| 18 | Anthony Antonelli | 19 | Son | New Worker | Massachusetts |
| 19 | Margaret Antonelli | 16 | Daughter | — | Massachusetts |
| 20 | George Antonelli | 14 | Son | — | Massachusetts |
| 21 | Anna Antonelli | 12 | Daughter | — | Massachusetts |
| 22 | Alfred Antonelli | 11 | Son | — | Massachusetts |
| 23 | Mary Antonelli | 9 | Daughter | — | Massachusetts |
| 24 | John Smith | 54 | Head | — | Eire |
| 25 | Katherine Smith | 61 | Wife | — | Eire |
| 26 | James Stack | 48 | Head | Elevator Operator | Eire |
| 27 | Hannah Stack | 40 | Wife | — | Eire |
| 28 | Michael Stack | 21 | Son | Selling Newspapers | Eire |
| 29 | Mary K. Stack | 16 | Daughter | — | Massachusetts |
| 30 | James J. Stack | 15 | Son | — | Massachusetts |
| 31 | John J. Stack | 13 | Son | — | Massachusetts |
| 32 | Thomas R. Stack | 3 | Son | — | Massachusetts |
| 33 | Mary Roach | 57 | Head | — | Eire |
| 34 | Leo Roach | 37 | Son | Rubber Step Maker | Massachusetts |
| 35 | Joseph Roach | 34 | Son | Longshoreman | Massachusetts |
| 36 | William J. Roach THIS PERSON | 22 | Son | Pressman | Massachusetts |
| 37 | Nora Roach | 55 | Sister | — | Eire |
| 38 | Susan Roach | 6 | Daughter | — | Massachusetts |
| 39 | Joseph Roach | 4 | Son | — | Massachusetts |
| 40 | George E. Moylan | 63 | Head | — | 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)