Elizabeth Clark — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Linn-County, Iowa

Our Model Tree links this Elizabeth Clark across the 1920, 1930 and 1940 US Censuses in Linn-County, Iowa (XGBoost, ~Confirmed), with identified parents Atherton & Helen — first a daughter (b.~1918), then head of a 5-person household.

Age 22 b. ~1918 Female Daughter Born: Iowa Single

1940 Census Record Details

Census Year	1940
Location	Linn-County, Iowa
Surname	Clark
Given Name	Elizabeth
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	22
Marital Status	Single
Birthplace	Iowa
1935 Residence (City)	Cedar Rapids
1935 Residence (County)	Linn
Additional Details
Income (1939)	0
Highest Grade	No 4
1935 Residence	Same place
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa
Township / Ward	Cedar Rapids
Est. Birth Year	~1918

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 Elizabeth	Age	Birth yr
Elizabeth Clark	Daughter	—	22	~1918
Helen Clark	Head	—	53	~1887
Sara Clark	Other	—	1	~1939
Helen Clark	Other	—	25	~1915
James Clark	Son	—	27	~1913

Census Appearances

1920

Linn, Iowa

Daughter, age 2

Linn, Iowa · implied b. ~1918 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Clark
Given Name	Elizabeth
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	2
Marital Status	Single
Birthplace	Iowa
Father's Birthplace	Iowa
Mother's Birthplace	Iowa
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1930

Linn, Iowa

Daughter, age 12

Linn, Iowa · implied b. ~1918 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Clark
Given Name	Elizabeth A.
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	12
Marital Status	Single
Birthplace	Iowa
Father's Birthplace	Iowa
Mother's Birthplace	Iowa
Can Read/Write	Yes
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1940

Linn-County, Iowa

Daughter, age 22

Linn-County, Iowa · implied b. ~1918 — 5 household members

Surname	Clark
Given Name	Elizabeth
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	22
Marital Status	Single
Birthplace	Iowa
1935 Residence (City)	Cedar Rapids
1935 Residence (County)	Linn
Income (1939)	0
Highest Grade	No 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 Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Atherton Clark (~0.92 confidence) and mother Helen Clark (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.

Show:

Gen 1 Parents confidence ≈ 0.92

Father

Atherton Clark

b. ~1887

Source father

● Household · direct · ~0.92

Mother

Helen Clark

b. ~1887

Source mother

● Household · direct · ~0.92

This person

Anchor record

Elizabeth Clark

Daughter · 1940 · age 22 · b. ~1918 · Iowa

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Sibling

James Clark

Sibling · 1940 · age 27

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 — Linn-County, Iowa Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01176-00196)

Line	Name	Age	Relation	Occupation	Birthplace
1	Edith S. Duren	77	Head	—	Iowa
2	Jennie Little	62	Sister	Partner	Iowa
3	Don C. Lasky	63	Roomer	Agent	Ill.
4	Helen M. Clark	53	Head	—	Iowa
5	Elizabeth Clark THIS PERSON	22	Daughter	—	Iowa
6	James S. Clark	27	Son	Lieutenant J.G.	Iowa
7	Helen A. Clark	25	Daughter-in-law	—	Penn.
8	Sara Helen Clark	1	Granddaughter	—	Conn.
9	Clair Marshall	47	Head	Treasurer	Iowa
10	Myrna Marshall	45	Wife	—	Iowa
11	Hal Marshall	15	Son	—	Iowa
12	Diane Marshall	8	Daughter	—	Iowa
13	Thomas Marshall	6	Son	—	Iowa
14	Florence Bena	16	Servant	Maid	Iowa
15	Katherine Ford	45	Head	—	Iowa
16	Robert M. Ford	17	Son	—	Iowa
17	Elizabeth Ford	15	Daughter	—	Iowa
18	Rita Mills	24	Maid	Maid	Iowa
19	Joe L. Konecny	52	Head	Proprietor	Iowa
20	Anna Konecny	41	Wife	—	Iowa
21	L. Valena Konecny	22	Daughter	Clerk	Iowa
22	Allayne Konecny	19	Daughter	Clerk	Iowa
23	Henry Rustine	52	Head	Owner	Iowa
24	Gertrude Rustine	40	Wife	—	So. Dak.
25	Mary Ann Rustine	12	Daughter	—	Iowa
26	Katherine Rinehamer	28	Servant	Maid	Iowa
27	Wayne Ives	55	Head	Owner	Iowa
28	Edith Ives	55	Wife	—	Iowa
29	Vivian Ives	25	Daughter	Interior Decorator	Iowa
30	Anton Matyk	82	Head	Owner	Czech
31	William Matyk	42	Son	Mgr	Iowa
32	H. E. Boisen	49	Head	Traveling Salesman	Iowa
33	Lillian Boisen	46	Wife	—	Iowa
34	Dorothy Jane Boisen	19	Daughter	—	Iowa
35	Max Chapman	71	Head	Owner	Russia
36	Irving Baum	39	Son-in-law	Clerk	Missouri
37	Lena Baum	39	Daughter	—	Iowa
38	Herschel Baum	7	Grandson	—	Minn.
39	Marie Schissel	23	Servant	Maid	Iowa
40	Jessie Harrison	60	Head	—	Iowa

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Pedigree Summary

Elizabeth + 1 sibling

Gen 1 · 2 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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