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William Roach — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this William Roach across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1901), then head of a 6-person household.
Age 39
b. ~1901
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Roach |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Medford City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Bus-Operator |
| Industry | Public Transportation |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2200 |
| Highest Grade | H-3 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Bus-Operator |
| Township / Ward | Medford City |
| Est. Birth Year | ~1901 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Irene Roach | Daughter | — | 10 | ~1930 |
| William Roach | Head | — | 39 | ~1901 |
| William Roach | Son | — | 9 | ~1931 |
| Alice Roach | Daughter | — | 14 | ~1926 |
| Mary Roach | Spouse | — | 43 | ~1897 |
| Bernard Roach | Son | — | 9 | ~1931 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 27
Middlesex, Massachusetts · implied b. ~1903 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Roach |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Truck driver |
| Industry | Woolen Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Head, age 39
Middlesex-County, Massachusetts · implied b. ~1901 — 6 household members
| Surname | Roach |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Medford City |
| 1935 Residence (County) | Middlesex |
| Occupation | Bus-Operator |
| Industry | Public Transportation |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2200 |
| Highest Grade | H-3 |
| 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.
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This person
Anchor record
William Roach
Head · 1940 · age 39 · b. ~1901 · 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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01611-00141)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edna B. Church | 39 | Daughter | — | Massachusetts |
| 2 | Thelma Johnson | 37 | Daughter | Clerical | Massachusetts |
| 3 | Loretta Johnson | 23 | Granddaughter | Gen-Office | Massachusetts |
| 4 | Pearl Homer | 19 | Daughter | — | Massachusetts |
| 5 | Lorraine Homer | 0 | Granddaughter | — | Massachusetts |
| 6 | Edwin R. Homer | 24 | Son-in-law | Painter | Massachusetts |
| 7 | Thelma Church | 9 | Granddaughter | — | Massachusetts |
| 8 | Charles Van Hemme | 64 | Head | Cigar Maker | Belgium |
| 9 | Sidonie Van Hemme | 67 | Wife | — | Belgium |
| 10 | Leonard Dawson | 33 | Head | Paper Box-Maker | Maine |
| 11 | Kate R. Dawson | 31 | Wife | Machine Operator | Maine |
| 12 | Ernestine Shaw | 13 | Daughter | — | Maine |
| 13 | Frederick Maplebrook | 30 | Nephew | Laboratory Worker | Massachusetts |
| 14 | William O'Connell | 33 | Head | Beverage Salesman | Massachusetts |
| 15 | Alice B. O'Connell | 33 | Wife | — | Massachusetts |
| 16 | Arthur C. O'Connell | 2 | Son | — | Massachusetts |
| 17 | William H. Andrews | 72 | Uncle | — | Massachusetts |
| 18 | Charles Romanski | 34 | Head | Janitor | Rhode Island |
| 19 | Clementine Romanski | 32 | Wife | Clerical | New York |
| 20 | Elias Romanchyn | 61 | Head | Cleaning | Poland |
| 21 | Mary Romanchyn | 53 | Wife | — | Poland |
| 22 | Kristol Stephanie | 26 | Daughter | — | New York |
| 23 | Antoine Kristol | 25 | Son-in-law | Beef-Cutter | Maine |
| 24 | Antoine Kristol | 1 | Grandson | — | Massachusetts |
| 25 | Joanne Kristol | 0 | Granddaughter | — | Massachusetts |
| 26 | William Roach THIS PERSON | 39 | Head | Bus-Operator | Massachusetts |
| 27 | Mary Roach | 43 | Wife | — | Ireland |
| 28 | Alice Roach | 14 | Daughter | — | Massachusetts |
| 29 | Irene Roach | 10 | Daughter | — | Massachusetts |
| 30 | William Roach | 9 | Son | — | Massachusetts |
| 31 | Bernard Roach | 9 | Son | — | Massachusetts |
| 32 | Andrew Horn | 40 | Head | Hotel-Porter | Ireland |
| 33 | Mary Horn | 35 | Wife | — | Ireland |
| 34 | Kathleen Horn | 12 | Daughter | — | Massachusetts |
| 35 | Thomas Horn | 10 | Son | — | Massachusetts |
| 36 | Mary Horn | 9 | Daughter | — | Massachusetts |
| 37 | Agnes Horn | 7 | Daughter | — | Massachusetts |
| 38 | Ann Horn | 2 | Daughter | — | Massachusetts |
| 39 | Margaret Horn | 1 | Daughter | — | Massachusetts |
| 40 | Rose A. Bergeron | 64 | Wife | — | French-Canada |
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)