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Betty Martin — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Marion-County, Indiana

Our Model Tree links this Betty Martin across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents Ralph & Clara — first a daughter (b.~1920), then head of a 4-person household.

Age 20 b. ~1920 Female Daughter Born: Indiana Single

1940 Census Record Details

Census Year1940
LocationMarion-County, Indiana
SurnameMartin
Given NameBetty Rose
Relationship to HeadDaughter
SexF
Color / RaceWhite
Age20
Marital StatusSingle
BirthplaceIndiana
1935 Residence (City)Indianapolis
1935 Residence (County)Marion
Additional Details
Hours Worked6
Income (1939)0
Highest GradeC 4
1935 ResidenceSame place
Birth StateIndiana
Birth CountryUnited States
Birthplace (normalized)indiana
Township / WardIndianapolis
Est. Birth Year~1920

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 Betty Age Birth yr
Clara Martin Spouse — 49 ~1891
Betty Martin Daughter — 20 ~1920
Ralph Martin Head — 57 ~1883
Nora Armstrong Other — 65 ~1875

Census Appearances

1920
Marion, Indiana
Daughter, age
Marion, Indiana · implied b. ~1920 — 4 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Martin
Given Name Betty
Relationship to Head Daughter
Sex F
Color / Race White
Age 0
Marital Status Single
Birthplace Indiana
Father's Birthplace Ohio
Mother's Birthplace Indiana
Birth State Indiana
Birth Country United States
Birthplace (normalized) indiana
1930
Marion, Indiana
Daughter, age 10
Marion, Indiana · implied b. ~1920 — 4 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Martin
Given Name Betty R.
Relationship to Head Daughter
Sex F
Color / Race White
Age 10
Marital Status Single
Birthplace Indiana
Father's Birthplace Indiana
Mother's Birthplace Indiana
Can Read/Write Yes
Birth State Indiana
Birth Country United States
Birthplace (normalized) indiana
1940
Marion-County, Indiana
Daughter, age 20
Marion-County, Indiana · implied b. ~1920 — 4 household members
Surname Martin
Given Name Betty Rose
Relationship to Head Daughter
Sex F
Color / Race White
Age 20
Marital Status Single
Birthplace Indiana
1935 Residence (City) Indianapolis
1935 Residence (County) Marion
Hours Worked 6
Income (1939) 0
Highest Grade C 4
1935 Residence Same place
Birth State Indiana
Birth Country United States
Birthplace (normalized) indiana

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.
Model Tree available
Our Model Tree links Betty Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ralph Martin (~0.92 confidence) and mother Clara Martin (~0.92 confidence) and father Ralph Martin (~0.92 confidence) and mother Alice Martin (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1 Parents confidence ≈ 0.92
Father
Ralph Martin
b. ~1883
Source father
● Household · direct · ~0.92
Mother
Clara Martin
b. ~1891
Source mother
● Household · direct · ~0.92
Father
Ralph Martin
b. ~1896
Source father
● Household · direct · ~0.92
Mother
Alice Martin
b. ~1898
Source mother
● Household · direct · ~0.92
This person
Anchor record
Betty Martin
Daughter · 1940 · age 20 · b. ~1920 · Indiana
★ 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 — Marion-County, Indiana Open full size

Page Contents

31 people indexed on this census page (nara:1940:m-t0627-01131-00400)

Line Name Age Relation Occupation Birthplace
41 Lauraine Schuchman 19 Wife — Indiana
43 Mark De Groff 35 Head Salesman Minnesota
44 Dora De Groff 36 Wife — Iowa
45 Mark Jr De Groff 12 Son — Minnesota
47 Donald J White 35 Head Physician Indiana
48 Dorothy White 30 Wife — Michigan
49 Donald B White 2 Son — Indiana
50 Phyllis White 1 Daughter — Indiana
51 Katie Stevens 77 Head — Indiana
52 Louise Stevens 44 Daughter Stenographer Indiana
54 George E Evard 48 Head Jeweler Maryland
55 Mabel Evard 46 Wife — Indiana
56 Pat Evard 8 Son — Indiana
58 Edward D Tillman 40 Head Machine Oper Indiana
59 Mildred J Tillman 36 Wife Bookkeeper Indiana
61 David J Clark 61 Head Salesman Indiana
63 Claude A Senefeld 25 Head Draughtsman Indiana
64 Corril M Senefeld 25 Wife Clerk Stenographer Indiana
66 Kenneth E Cowles 33 Head Salesman Indiana
67 Ruth Cowles 38 Wife — Indiana
69 Ralph L Martin 57 Head Dept Mgr Ohio
70 Clara B Martin 49 Wife — Indiana
71 Betty Rose Martin THIS PERSON 20 Daughter — Indiana
72 Nora Armstrong 65 Law — Indiana
74 Gilbert E Frazier 35 Head Mgr Indiana
75 Geneva Frazier 34 Wife — Indiana
76 Nadine Frazier 13 Daughter — Florida
77 Diane Frazier 12 Daughter — Indiana
78 Jesse J Houston 54 Head Locomotive Engineer Indiana
79 Bertha Houston 53 Wife — Indiana
80 Serena Houston 30 Daughter Stenographer Indiana

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Pedigree Summary

Betty
Gen 1 · 4 parents ~0.92
Max depth 4 (1900–1950 window)

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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