MR
Mary Roche — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Mary Roche across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1895), then head of a 6-person household.
Age 45
b. ~1895
Female
Spouse
Born: England
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Roche |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Cambridge |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth Country | England |
| Birthplace (normalized) | england |
| Township / Ward | Cambridge |
| Est. Birth Year | ~1895 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Vida Roche | Daughter | — | 15 | ~1925 |
| Mary Roche | Spouse | — | 45 | ~1895 |
| Marion Roche | Daughter | — | 18 | ~1922 |
| Joseph Roche | Head | — | 55 | ~1885 |
| Winifred Roche | Daughter | — | 21 | ~1919 |
| Joseph Roche | Son | — | 11 | ~1929 |
Census Appearances
1930
Middlesex, Massachusetts
Other, age 35
Middlesex, Massachusetts · implied b. ~1895 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Roche |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1914 |
| Age at First Marriage | 22 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | England |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Middlesex-County, Massachusetts
Spouse, age 45
Middlesex-County, Massachusetts · implied b. ~1895 — 6 household members
| Surname | Roche |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Cambridge |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth Country | England |
| Birthplace (normalized) | england |
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 Mary Roche across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Roche
Spouse · 1940 · age 45 · b. ~1895 · 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-t0627-01684-00463)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frances Tarbox | 81 | Head | — | Maine |
| 2 | Marcia Mcdonald | 70 | Maid | — | P.E. Island |
| 3 | Etta R. Leonard | 60 | Head | Farmer | Mass |
| 4 | George Kourian | 38 | Son-in-law | Farmer | Mass |
| 5 | Alice M. Kourian | 38 | Daughter | Accountant | Mass |
| 6 | Evelyn Cox | 20 | Grand-dau | — | Mass |
| 7 | Alma Brown | 63 | Head | — | Vermont |
| 8 | Ralph Brown | 37 | Son | — | Mass |
| 9 | Donald Brown | 31 | Son | Teacher | Mass |
| 10 | Everett Doel | 48 | Head | Inspector | Mass |
| 11 | Georgiana Doel | 50 | Wife | Elevator Operator | New York |
| 12 | Thomas M. Hurley | 44 | Head | Street Car Operator | Mass |
| 13 | Evelyn J. Hurley | 54 | Wife | — | Maine |
| 14 | Thomas Murphy | 56 | Head | Postal Clerk | Mass |
| 15 | Bridget Murphy | 56 | Wife | — | Eire |
| 16 | Anna M. Murphy | 27 | Daughter | Comptometer Operator | Mass |
| 17 | Nellie Hurley | 74 | Head | — | Mass |
| 18 | Annie F. Hurley | 71 | Sister | — | Mass |
| 19 | Joseph Roche | 55 | Head | Superintendent | Eire |
| 20 | Winifred Roche | 21 | Daughter | Secretary | Mass |
| 21 | Mary Roche THIS PERSON | 45 | Wife | — | England |
| 22 | Marion J. Roche | 18 | Daughter | — | Mass |
| 23 | Vida L. Roche | 15 | Daughter | — | Mass |
| 24 | Joseph C. Roche | 11 | Son | — | Mass |
| 25 | Helen W. Monroe | 64 | Head | — | Mass |
| 26 | Cesar Barber | 26 | Head | Teacher | Calif |
| 27 | Elizabeth Barber | 25 | Wife | — | Washington |
| 28 | George Barber | 0 | Son | — | Mass |
| 29 | Arthur Mcmurtry | 30 | Head | Teacher | Mass |
| 30 | Erna Mcmurtry | 31 | Wife | — | Mass |
| 31 | Andrew J. Fisher | 24 | Head | Research Chem. Engineering | Mass |
| 32 | Jean Z. Fisher | 23 | Wife | Secretary | Mass |
| 33 | Carrie Eates | 81 | Head | — | Mass |
| 34 | Lawrence Leighton | 35 | Head | Teacher | Maine |
| 35 | Mary Leighton | 71 | Mother | — | Maine |
| 36 | Kenneth Cooke | 32 | Head | Architect | Washington |
| 37 | Elizabeth Cooke | 26 | Wife | Secretary | Illinois |
| 38 | Alice Cooke | 2 | Daughter | — | Mass |
| 39 | Mary L. Kelley | 52 | Head | — | Mass |
| 40 | Eleanor Caslen | 43 | Roomer | — | Mass |
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)