MS
Mary Silva — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Mary Silva across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1868), then head of a 4-person household.
Age 72
b. ~1868
Female
Head
Born: Portugal
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Silva |
| Given Name | Mary C. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 72 |
| Marital Status | Widowed |
| Birthplace | Portugal |
| 1935 Residence (City) | Lowell |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | First papers filed |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 2 |
| 1935 Residence | Same place |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
| Township / Ward | Lowell |
| Est. Birth Year | ~1868 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Phebe Silva | Daughter | — | 41 | ~1899 |
| Mary Silva | Head | — | 72 | ~1868 |
| Jacklin Silva | Son | — | 38 | ~1902 |
| Louis Silva | Son | — | 42 | ~1898 |
Census Appearances
1920
Middlesex, Massachusetts
Head, age 48
Middlesex, Massachusetts · implied b. ~1872 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Silva |
| Given Name | Mary C |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Widowed |
| Birthplace | Portugal |
| Year of Immigration | 1911 |
| Naturalization Status | Alien |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Occupation | Weaver |
| Industry | Cotton mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Portuguese |
| Home Owned/Rented | R |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
1930
Middlesex, Massachusetts
Other, age 61
Middlesex, Massachusetts · implied b. ~1869 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Silva |
| Given Name | Mary C. |
| Relationship to Head | Mother |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Widowed |
| Birthplace | Portugal |
| Age at First Marriage | 20 |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Occupation | none |
| Can Read/Write | No |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
1940
Middlesex-County, Massachusetts
Head, age 72
Middlesex-County, Massachusetts · implied b. ~1868 — 4 household members
| Surname | Silva |
| Given Name | Mary C. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 72 |
| Marital Status | Widowed |
| Birthplace | Portugal |
| 1935 Residence (City) | Lowell |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | First papers filed |
| Class of Worker | 0 |
| Highest Grade | No 2 |
| 1935 Residence | Same place |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
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 Silva across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Silva
Head · 1940 · age 72 · b. ~1868 · 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-t0627-01694-00366)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John Sager | 24 | Head | Laborer | Massachusetts |
| 42 | George Sager | 5 | Son | — | — |
| 43 | Molly Tavares | 53 | Head | Examiner | Portugal |
| 44 | Evangeline Tavares | 25 | Daughter | Mender | Massachusetts |
| 45 | Mary C. Silva THIS PERSON | 72 | Head | — | Portugal |
| 46 | Jacklin Silva | 38 | Son | Doffer | Portugal |
| 47 | Louis Silva | 42 | Son | Laborer | Portugal |
| 48 | Phebe Silva | 41 | Daughter | Spinner | Massachusetts |
| 49 | Andrew Wilkins | 60 | Head | Clerk | Lithuania |
| 50 | Antoinette Wilkins | 49 | Wife | — | Lithuania |
| 51 | Antoinette Wilkins | 22 | Daughter | Assembler | Massachusetts |
| 52 | Veronica Wilkins | 20 | Daughter | Box Stitcher | Massachusetts |
| 53 | Helen Wilkins | 18 | Daughter | Packer | Massachusetts |
| 54 | Rita Wilkins | 10 | Daughter | — | Massachusetts |
| 55 | Francis Wilkins | 8 | Son | — | Massachusetts |
| 56 | Thomas Varsockas | 51 | Head | Bleacher | Lithuania |
| 57 | Caroline Varsockas | 46 | Wife | — | Lithuania |
| 58 | Joseph Varsockas | 19 | Son | Brusher | Massachusetts |
| 59 | Peter A. Saulnier | 36 | Head | Treer | Massachusetts |
| 60 | Anna Saulnier | 30 | Wife | Stitcher | Massachusetts |
| 61 | Anna Saulnier | 11 | Daughter | — | Massachusetts |
| 62 | Peter Jr. Saulnier | 7 | Son | — | Massachusetts |
| 63 | Elinor Saulnier | 5 | Daughter | — | — |
| 64 | Theodore Andreoli | 63 | Head | — | Italy |
| 65 | Christina Andreoli | 56 | Wife | — | Italy |
| 66 | Richard Andreoli | 45 | Son | Dyer | Massachusetts |
| 67 | Theodore Jr. Andreoli | 38 | Son | Shoe Maker | Massachusetts |
| 68 | Frank Racicot | 62 | Head | Packer | Massachusetts |
| 69 | Nellie E. Racicot | 62 | Wife | — | Massachusetts |
| 70 | Morris E. Racicot | 38 | Son | Tacker | Massachusetts |
| 71 | Dorothy Racicot | 32 | Daughter | Twister | Massachusetts |
| 72 | Rita J. Racicot | 23 | Daughter | Twister | Massachusetts |
| 73 | Thomas Mcnamara | 22 | Nephew | — | New York |
| 74 | Aileen H. Mcnamara | 16 | Niece | — | Massachusetts |
| 75 | George Lowe | 42 | Head | Dyer | Massachusetts |
| 76 | Elizabeth Lowe | 42 | Wife | — | Newfoundland |
| 77 | Ruth Lowe | 19 | Daughter | Pin Boy | Massachusetts |
| 78 | Phyllis Lowe | 18 | Son | Pin Boy | Massachusetts |
| 79 | Lorraine Lowe | 15 | Daughter | — | Massachusetts |
| 80 | Earl Lowe | 13 | Son | — | 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)