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Mary Butler — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Los-Angeles-County, California

Our Model Tree links this Mary Butler across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a spouse (b.~1884), then head of a 3-person household.

Age 56 b. ~1884 Female Spouse Born: Ireland Married

1940 Census Record Details

Census Year1940
LocationLos-Angeles-County, California
SurnameButler
Given NameMary
Relationship to HeadWife
SexF
Color / RaceWhite
Age56
Marital StatusMarried
BirthplaceIreland
1935 Residence (City)Los Angeles
1935 Residence (County)Los Angeles
Naturalization StatusNaturalized
Additional Details
Highest GradeNo 8
1935 ResidenceSame place
Birth CountryIreland
Birthplace (normalized)ireland
Township / WardLos Angeles
Est. Birth Year~1884

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.

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

Name Relation to head Relative to Mary Age Birth yr
George Butler Head — 57 ~1883
George Butler Son — 20 ~1920
Mary Butler Spouse — 56 ~1884

Census Appearances

1920
Los Angeles, …
Spouse, age 36
Los Angeles, California · implied b. ~1884 — 6 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Butler
Given Name Mary M.
Relationship to Head Wife
Sex F
Color / Race White
Age 36
Marital Status Married
Birthplace Ireland
Year of Immigration 1899
Naturalization Status Naturalized
Father's Birthplace Ireland
Mother's Birthplace Ireland
Can Read Yes
Can Write Yes
Speaks English Yes
Mother Tongue Ireland
Birth Country Ireland
Year of Naturalization 1910
Birthplace (normalized) ireland
1930
Los Angeles, …
Spouse, age 47
Los Angeles, California · implied b. ~1883 — 7 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Butler
Given Name Mary
Relationship to Head Wife
Sex F
Color / Race White
Age 47
Marital Status Married
Birthplace Ireland
Naturalization Status Naturalized
Year of Immigration 1897
Age at First Marriage 27
Father's Birthplace Ireland
Mother's Birthplace Ireland
Can Read/Write Yes
Mother Tongue English
Birth Country Ireland
Birthplace (normalized) ireland
1940
Los-Angeles-County, California
Spouse, age 56
Los-Angeles-County, California · implied b. ~1884 — 3 household members
Surname Butler
Given Name Mary
Relationship to Head Wife
Sex F
Color / Race White
Age 56
Marital Status Married
Birthplace Ireland
1935 Residence (City) Los Angeles
1935 Residence (County) Los Angeles
Naturalization Status Naturalized
Highest Grade No 8
1935 Residence Same place
Birth Country Ireland
Birthplace (normalized) ireland

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 Butler across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Butler
Spouse · 1940 · age 56 · b. ~1884 · California
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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 — Los-Angeles-County, California Open full size

Page Contents

36 people indexed on this census page (nara:1940:m-t0627-00375-00896)

Line Name Age Relation Occupation Birthplace
1 George H Butler 57 Head Line Foreman Kansas
2 Mary Butler THIS PERSON 56 Wife — Ireland
3 George H Jr Butler 20 Son — California
5 Constantino Da Silva 34 Head Organizer New York
6 Catherine Da Silva 28 Wife Bakery Clerk New York
7 William H Thomas 25 Head Painter Contractor Canada English
8 Lesley Thomas 20 Wife — Oregon
9 Robert Johnson 25 Head Time Checker South Dakota
10 Ruth Johnson 24 Wife — Wisconsin
11 Robert Jr Johnson 3 Son — California
12 Daniel P Stewart 29 Head Building Inspector Texas
13 Merry Ruth Stewart 28 Wife Secretary Iowa
14 Theodore C Daebuble 30 Head Auditor Kansas
15 Marian Daebuble 28 Wife — New Mexico
16 Mary E Daebuble 3 Daughter — California
18 Carlyle L Edwards 39 Head Liquor Store Manager Utah
19 Elizabeth Edwards 41 Wife Liquor Store Helper Oregon
20 Lincoln A Williams 29 Head Property Clerk California
21 Jean H Williams 29 Wife — Canada English
22 William S Harkness 34 Head Stock Clerk Kansas
23 Barbara Harkness 31 Wife — Germany
24 Julianna Medve 71 Mother — Germany
26 Joseph W Mathewson 44 Head Salesman Kansas
27 Mary E Mathewson 29 Wife — California
28 W. Curtis O'Mera 10 Stepson — California
29 Nicola A Vitale 34 Head Presser Italy
30 Margaret Vitale 29 Wife — New York
31 Frank Vitale 9 Son — New York
32 Clarence Thoren 28 Head Civil Engineer California
33 Bernice Thoren 25 Sister Secretary California
34 Clara Thoren 56 Mother — Sweden
35 George Aveney 25 Head Carpet Layer New York
36 Margaret Aveney 23 Wife — California
37 Margaret Aveney 2 Daughter — California
38 Emily Aveney 55 Mother — England
40 Eyman Mead Dunn 35 Head Oil Tool Machinist Denmark

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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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