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Mary Costa — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Bristol-County, Massachusetts

Our Model Tree links this Mary Costa across the 1920, 1930 and 1940 US Censuses in Bristol-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1881), then head of a 5-person household.

Age 59 b. ~1881 Female Spouse Born: Azores Married

1940 Census Record Details

Census Year1940
LocationBristol-County, Massachusetts
SurnameCosta
Given NameMary
Relationship to HeadWife
SexF
Color / RaceWhite
Age59
Marital StatusMarried
BirthplaceAzores
1935 Residence (City)Fall River
1935 Residence (County)Bristol
Naturalization StatusNaturalized
Additional Details
Highest GradeNo 0
1935 ResidenceSame Place
Birth CountryPortugal
Birthplace (normalized)azores
Township / WardFall River
Est. Birth Year~1881

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.

5 people recorded at the same address in the 1940 census.

Name Relation to head Relative to Mary Age Birth yr
Joseph Costa Son — 26 ~1914
Mary Costa Other — 29 ~1911
Mary Costa Spouse — 59 ~1881
Antone Costa Head — 61 ~1879
Antone Costa Son — 31 ~1909

Census Appearances

1920
Bristol, Massachusetts
Spouse, age 37
Bristol, Massachusetts · implied b. ~1883 — 6 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Costa
Given Name Mary G.
Relationship to Head Wife
Sex F
Color / Race White
Age 37
Marital Status Married
Birthplace Azores
Year of Immigration 1902
Naturalization Status Alien
Father's Birthplace Azores
Mother's Birthplace Azores
Occupation Housewife
Can Read No
Can Write No
Speaks English No
Mother Tongue Portuguese
Birth Country Portugal
Birthplace (normalized) azores
1930
Plymouth, Massachusetts
Spouse, age 48
Plymouth, Massachusetts · implied b. ~1882 — 14 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Costa
Given Name Mary
Relationship to Head Wife
Sex F
Color / Race White
Age 48
Marital Status Married
Birthplace Azores
Naturalization Status Alien
Year of Immigration 1902
Age at First Marriage 18
Father's Birthplace Azores
Mother's Birthplace Azores
Can Read/Write Yes
Mother Tongue Portuguese
Birth Country Portugal
Birthplace (normalized) azores
1940
Bristol-County, Massachusetts
Spouse, age 59
Bristol-County, Massachusetts · implied b. ~1881 — 5 household members
Surname Costa
Given Name Mary
Relationship to Head Wife
Sex F
Color / Race White
Age 59
Marital Status Married
Birthplace Azores
1935 Residence (City) Fall River
1935 Residence (County) Bristol
Naturalization Status Naturalized
Highest Grade No 0
1935 Residence Same Place
Birth Country Portugal
Birthplace (normalized) azores

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.
Linked across censuses
Our Model Tree links Mary Costa across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Costa
Spouse · 1940 · age 59 · b. ~1881 · 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 — Bristol-County, Massachusetts Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01690-00616)

Line Name Age Relation Occupation Birthplace
41 Sophie Estrella 18 Wife Sewer Mass.
42 Silvo Medeiros 32 Head Spinner Mass.
43 Gloria Medeiros 34 Wife Spinner Azores
44 George Medeiros 9 Son — Mass.
45 Gilbert Medeiros 8 Son — Mass.
46 Cecilia Medeiros 3 Dau — Mass.
47 Elmer Griffiths 30 Head Tester Mass.
48 Gertrude Griffiths 27 Wife — Azores
49 Antone Costa 61 Head — Azores
50 Mary Costa THIS PERSON 59 Wife — Azores
51 Mary Costa 29 Dau Spinner Azores
52 Joseph Costa 26 Son Laborer Azores
53 Antone Costa 31 Son Laborer Azores
54 Edward Kelly 46 Head Electrician Mass.
55 Gertrude Kelly 37 Wife — Mass.
56 John Kelly 14 Son — Mass.
57 Barbara Kelly 10 Dau. — Mass.
58 Edward Kelly 7 Son — Mass.
59 Margaret Kelly 6 Dau. — Mass.
60 Manuel Fonseca 48 Head Second-Hand Azores
61 Mary Fonseca 46 Wife — Azores
62 David Fonseca 21 Son — Mass.
63 Prispane Fonseca 19 Son Cleaner Mass.
64 Dolores Fonseca 15 Dau — Mass.
65 Olive Fonseca 25 Dau Spooler Gen Mass.
66 Antone Machado 60 Head Laborer Azores
67 Franseno Machado 60 Wife — Azores
68 Idalena Arruda 36 Head — Mass.
69 Herman Arruda 15 Son — Mass.
70 Eileen Arruda 13 Dau — Mass.
71 Rita Arruda 9 Dau — Mass.
72 John Arruda 6 Son — Mass.
73 Raymond Arruda 5 Son — Mass.
74 Manuel Rosa 54 Head Cleaner Azores
75 Theresa Rosa 57 Wife — Azores
76 Bella Rosa 23 Dau — Mass.
77 John Rosa 22 Son Battery Hand Mass.
78 Evelyn Rosa 20 Dau Sewer Mass.
79 Gilbert Rosa 18 Son Cleaner Mass.
80 Manuel Furtado 39 Head Cook & Prop Mass.

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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)

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