JC
Joseph Costa — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Joseph Costa across the 1900, 1910, 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1871), then head of a 4-person household.
Age 69
b. ~1871
Male
Head
Born: Portugal
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Costa |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Widowed |
| Birthplace | Portugal |
| 1935 Residence (City) | Cambridge |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Alien |
| Additional Details | |
| Hours Worked | 0 |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
| Township / Ward | Cambridge |
| Est. Birth Year | ~1871 |
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 Joseph | Age | Birth yr |
|---|---|---|---|---|
| Ruby Costa | Daughter | — | 27 | ~1913 |
| J Costa | Daughter | — | 22 | ~1918 |
| Evelyn Costa | Daughter | — | 25 | ~1915 |
| Joseph Costa | Head | — | 69 | ~1871 |
Census Appearances
1900
Bristol, Massachusetts
Head, age 25
Bristol, Massachusetts · implied b. ~1875 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Costa |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Portugal |
| Birth Month | Dec |
| Birth Year | 1875 |
| Year of Immigration | 1892 |
| Naturalization Status | Alien |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Occupation | Day Laborer |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
1910
Bristol, Massachusetts
Head, age 37
Bristol, Massachusetts · implied b. ~1873 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Costa |
| Given Name | Jose |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Portugal |
| Years Married | 11 |
| Year of Immigration | 1890 |
| Naturalization Status | Alien |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Occupation | Laborer |
| Industry | Milk farm |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
1920
Middlesex, Massachusetts
Head, age 48
Middlesex, Massachusetts · implied b. ~1872 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Costa |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Portugal |
| Year of Immigration | 1890 |
| Naturalization Status | Alien |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Occupation | Laborer |
| Industry | Rubber Shop |
| Class of Worker | W |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Mother Tongue | Portuguese |
| Home Owned/Rented | R |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
1930
Middlesex, Massachusetts
Head, age 59
Middlesex, Massachusetts · implied b. ~1871 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Costa |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Portugal |
| Naturalization Status | Naturalized |
| Year of Immigration | 1891 |
| Age at First Marriage | 27 |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Occupation | Laborer |
| Industry | Rubber Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Portuguese |
| Home Owned/Rented | R |
| Home Value / Rent | 20 |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
1940
Middlesex-County, Massachusetts
Head, age 69
Middlesex-County, Massachusetts · implied b. ~1871 — 4 household members
| Surname | Costa |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Widowed |
| Birthplace | Portugal |
| 1935 Residence (City) | Cambridge |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Alien |
| Hours Worked | 0 |
| Highest Grade | No 3 |
| 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 Joseph Costa across 5 US Census years (1900, 1910, 1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Joseph Costa
Head · 1940 · age 69 · b. ~1871 · Massachusetts
★ You are viewing this record
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-t0627-01683-00214)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Margaret G Flynn | 30 | Daughter | — | Massachusetts |
| 42 | D. Betty Flynn | 28 | Daughter | Office Clerk | Massachusetts |
| 43 | Arthur Di Giglio | 22 | Head | Laborer | Massachusetts |
| 44 | Catherine Di Giglio | 23 | Wife | — | Massachusetts |
| 45 | Patrick Mcnulty | 49 | Head | Laborer | Massachusetts |
| 46 | Alice Mcnulty | 47 | Wife | — | Massachusetts |
| 47 | Robert Mcnulty | 14 | Son | — | Massachusetts |
| 48 | Alice O Mcnulty | 10 | Daughter | — | Massachusetts |
| 49 | Byron Baumler | 43 | Head | — | California |
| 50 | Mildred Baumler | 34 | Wife | — | Washington |
| 51 | George Simmons | 38 | Head | Baker | England |
| 52 | Catherine Simmons | 37 | Wife | — | England |
| 53 | George Simmons | 6 | Son | — | Massachusetts |
| 54 | Ardenis Packer | 28 | Head | Fruit | Massachusetts |
| 55 | Gertrude Packer | 28 | Wife | — | Scotland |
| 56 | Gertrude E Packer | 6 | Daughter | — | Massachusetts |
| 57 | Audrey Packer | 5 | Daughter | — | Massachusetts |
| 58 | Rose Mary Packer | 0 | Daughter | — | Massachusetts |
| 59 | Joseph Costa THIS PERSON | 69 | Head | — | Portugal |
| 60 | Ruby Costa | 27 | Daughter | — | Massachusetts |
| 61 | Evelyn Costa | 25 | Daughter | — | Massachusetts |
| 62 | J. Angie Costa | 22 | Daughter | — | Massachusetts |
| 63 | William Shinkwin | 47 | Head | Shipper | Massachusetts |
| 64 | Mabel Shinkwin | 39 | Wife | — | Massachusetts |
| 65 | William Shinkwin | 18 | Son | Caretaker | Massachusetts |
| 66 | Claire Shinkwin | 14 | Daughter | — | Massachusetts |
| 67 | John Shinkwin | 10 | Son | — | Massachusetts |
| 68 | Margaret Shinkwin | 8 | Daughter | — | Massachusetts |
| 69 | Manuel Costa | 58 | Head | — | Portugal |
| 70 | Adeline Costa | 53 | Wife | — | Portugal |
| 71 | Agatha Costa | 27 | Daughter | — | Massachusetts |
| 72 | Mabel Costa | 25 | Daughter | — | Massachusetts |
| 73 | Joseph Jr. Costa | 24 | Son | Salvage | Massachusetts |
| 74 | Alice Costa | 20 | Daughter | Labeler | Massachusetts |
| 75 | Mary Costa | 17 | Daughter | — | Massachusetts |
| 76 | Geraldine Costa | 12 | Daughter | — | Massachusetts |
| 77 | Joseph De Castro | 45 | Head | Manufacturer | Portugal |
| 78 | Mary De Castro | 43 | Wife | — | Rhode Island |
| 79 | Joseph Jr. De Castro | 13 | Son | — | Massachusetts |
| 80 | Manuel Carvalho | 25 | Head | Furniture | Massachusetts |
Related Census Records
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)