Elizabeth Martin — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Polk-County, Iowa

Our Model Tree links this Elizabeth Martin across the 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed), with identified parents John — first a daughter (b.~1885), then head of a 4-person household.

Age 55 b. ~1885 Female Daughter Born: Iowa Single

1940 Census Record Details

Census Year	1940
Location	Polk-County, Iowa
Surname	Martin
Given Name	Elizabeth
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	55
Marital Status	Single
Birthplace	Iowa
1935 Residence (City)	Des Moines City
1935 Residence (County)	Polk
Additional Details
Highest Grade	C 4
1935 Residence	Same place
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa
Township / Ward	Des Moines City
Est. Birth Year	~1885

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 Elizabeth	Age	Birth yr
Elizabeth Martin	Daughter	—	55	~1885
John Martin	Head	—	53	~1887
John Martin	Son	—	22	~1918
Nicholas Martin	Son	—	19	~1921

Census Appearances

1920

Polk, Iowa

Spouse, age 36

Polk, Iowa · implied b. ~1884 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Martin
Given Name	Elizabeth G
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	36
Marital Status	Married
Birthplace	Iowa
Father's Birthplace	Ohio
Mother's Birthplace	Iowa
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1930

Polk, Iowa

Spouse, age 45

Polk, Iowa · implied b. ~1885 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Martin
Given Name	Elizabeth J
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	45
Marital Status	Married
Birthplace	Iowa
Age at First Marriage	29
Father's Birthplace	Ohio
Mother's Birthplace	Iowa
Can Read/Write	Yes
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1940

Polk-County, Iowa

Daughter, age 55

Polk-County, Iowa · implied b. ~1885 — 4 household members

Surname	Martin
Given Name	Elizabeth
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	55
Marital Status	Single
Birthplace	Iowa
1935 Residence (City)	Des Moines City
1935 Residence (County)	Polk
Highest Grade	C 4
1935 Residence	Same place
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

Model Tree

Model Tree available

Our Model Tree links Elizabeth Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Martin (~0.50 confidence). The pedigree spans 1 generation with 1 identified ancestor.

Show:

Gen 1 Parents confidence ≈ 0.5

Father

John Martin

b. ~1887

Source father

● Household · direct · ~0.5

This person

Anchor record

Elizabeth Martin

Daughter · 1940 · age 55 · b. ~1885 · Iowa

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Sibling

John Martin

Sibling · 1940 · age 22

Source co-child of head (derived)

● Co-child · derived · ~0.88

Sibling

Nicholas Martin

Sibling · 1940 · age 19

Source co-child of head (derived)

● Co-child · derived · ~0.88

Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1940 US Federal Census — Polk-County, Iowa Open full size

Page Contents

36 people indexed on this census page (nara:1940:m-t0627-01193-00815)

Line	Name	Age	Relation	Occupation	Birthplace
1	Russell Wilson	33	Head	Repairer	Iowa
2	Lucile Wilson	29	Wife	—	Illinois
3	Patricia Wilson	10	Daughter	—	New Mexico
4	Rudolph Elman	39	Head	Theater Manager	Iowa
5	Harriett Elman	36	Wife	—	Illinois
6	John Elman	5	Son	—	Iowa
7	Nancy Elman	1	Daughter	—	Iowa
8	Clementina Bohlman	18	Housekeeper	Housework	Iowa
9	Shannon S. Batte	52	Head	Dept Manager	Missouri
10	Lucille P. Batte	50	Wife	—	Missouri
11	Lucille J. Batte	21	Daughter	—	Missouri
12	John G. Martin	53	Head	Dentist	Iowa
13	Elizabeth Martin THIS PERSON	55	Daughter	—	Iowa
14	John Jr. Martin	22	Son	Paper Route	Iowa
15	Nicholas Martin	19	Son	Paper Route	Iowa
16	Adriette Neal	45	Head	Personnel Director	New Jersey
17	Geyer Neal	18	Son	Auditor	New York
18	Richard Hillrich	51	Head	—	New York
19	Dorothy Hillrich	47	Wife	—	New York
20	Thomas Charles Dalbey	61	Head	Executive	Iowa
21	Rose Dalbey	57	Wife	—	Czechoslovakia
22	Robert P. Dalbey	26	Son	Lumber Sales	Iowa
23	Harris Rivers	68	Head	Executive	New York
24	Frances G. Rivers	61	Wife	—	New York
25	Sarah Craig Brady	73	Mother	—	N. Carolina
26	Laban J. Brady	49	Son	Salesman	N. Carolina
27	Charles D. Prouty	55	Head	—	Ohio
28	Millie Benson	55	Servant	Housekeeper	Iowa
29	Theodore Aulmann	None	—	—	—
30	Daisy L. Aulmann	None	—	—	—
31	Ralph L. Aulmann	None	—	—	—
32	Ruth Ann Aulmann	None	—	—	—
33	Edith W. Albert	54	Head	—	Iowa
34	Jerome Tratchel	41	Head	Merchandise Mgr.	Indiana
35	William E. Carlson	36	Head	Salesman	Illinois
36	Kathryn E. Carlson	35	Wife	—	Illinois

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Pedigree Summary

Elizabeth + 2 siblings

Gen 1 · 1 parents ~0.5

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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