Lillian Clark — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Marion-County, Indiana

Our Model Tree links this Lillian Clark across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed) — first a spouse (b.~1901), then head of a 4-person household.

Age 39 b. ~1901 Female Spouse Born: Indiana Married

1940 Census Record Details

Census Year	1940
Location	Marion-County, Indiana
Surname	Clark
Given Name	Lillian
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	39
Marital Status	Married
Birthplace	Indiana
1935 Residence (City)	Indianapolis City
1935 Residence (County)	Marion
Additional Details
Income (1939)	0
Highest Grade	H-4
1935 Residence	Same place
Birth State	Indiana
Birth Country	United States
Birthplace (normalized)	indiana
Township / Ward	Indianapolis City
Est. Birth Year	~1901

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 Lillian	Age	Birth yr
Lillian Clark	Spouse	—	39	~1901
Vester Clark	Head	—	40	~1900
Shirley Clark	Daughter	—	5	~1935
Barbara Clark	Daughter	—	9	~1931

Census Appearances

1920

Marion, Indiana

Spouse, age 20

Marion, Indiana · implied b. ~1900 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Clark
Given Name	Lillian
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	20
Marital Status	Married
Birthplace	Indiana
Father's Birthplace	Indiana
Mother's Birthplace	Ohio
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Indiana
Birth Country	United States
Birthplace (normalized)	indiana

1930

Marion, Indiana

Spouse, age 29

Marion, Indiana · implied b. ~1901 — 2 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Clark
Given Name	Lillian E.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	29
Marital Status	Married
Birthplace	Indiana
Age at First Marriage	21
Father's Birthplace	Indiana
Mother's Birthplace	Indiana
Occupation	none
Can Read/Write	Yes
Birth State	Indiana
Birth Country	United States
Birthplace (normalized)	indiana

1940

Marion-County, Indiana

Spouse, age 39

Marion-County, Indiana · implied b. ~1901 — 4 household members

Surname	Clark
Given Name	Lillian
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	39
Marital Status	Married
Birthplace	Indiana
1935 Residence (City)	Indianapolis City
1935 Residence (County)	Marion
Income (1939)	0
Highest Grade	H-4
1935 Residence	Same place
Birth State	Indiana
Birth Country	United States
Birthplace (normalized)	indiana

Model Tree

Linked across censuses

Our Model Tree links Lillian Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.

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This person

Anchor record

Lillian Clark

Spouse · 1940 · age 39 · b. ~1901 · Indiana

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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 — Marion-County, Indiana Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01125-00630)

Line	Name	Age	Relation	Occupation	Birthplace
1	Vester Clark	40	Head	Price Clerk	Kentucky
2	Lillian Clark THIS PERSON	39	Wife	—	Indiana
3	Barbara Clark	9	Daughter	—	Indiana
4	Shirley Clark	5	Daughter	—	Indiana
5	Elmer J. Ulrich	40	Head	Pipe Fitter	Indiana
6	Annie Ulrich	37	Wife	—	Wisconsin
7	Lloyd Siddons	62	Head	Brakeman	Indiana
8	Nedude Siddons	57	Wife	—	Indiana
9	Florence L. Siddons	40	Daughter	Timekeeper	Indiana
10	Kathryn Ashbaugh	58	Head	—	Indiana
11	Harry Hartnett	55	Brother	Storekeeper	Indiana
12	Raymond H. Christman	51	Head	Accountant	Indiana
13	Eloise Christman	53	Wife	—	Indiana
14	Eloise Christman	18	Daughter	—	Indiana
15	Ethel Forsyth	58	Head	—	Indiana
16	John R. Wood	54	Lodger	Bartender	Indiana
17	Hattie Wood	53	Lodger	—	Indiana
18	Daniel Kobac	27	Head	Electrical Engineer	New York
19	Mildred Kobac	26	Wife	—	New York
20	Altus Cooley	39	Head	Probation Officer	Indiana
21	Mary Cooley	37	Wife	—	Indiana
22	James Cooley	3	Son	—	Indiana
23	Clyde L. Klinger	49	Head	Supervisor	Indiana
24	Helen E. Klinger	45	Wife	—	Indiana
25	Thomas E. Klinger	14	Son	—	Indiana
26	Leo Masse	44	Head	Salesman	Illinois
27	Anna Masse	44	Wife	—	Illinois
28	Mary Catherine Masse	22	Daughter	Order Clerk	Indiana
29	Margaret Masse	20	Daughter	Stenographer	Indiana
30	Elmer J. Pritchard	52	Head	Restaurant Mgr.	Indiana
31	Lelard Pritchard	46	Wife	—	Indiana
32	Almeda Pritchard	70	Mother	—	Indiana
33	Albert Bottin	46	Head	Pressman	Indiana
34	Maydene Bottin	40	Wife	—	Indiana
35	Leonard Parsell	32	Head	Asst. Office Mgr.	Indiana
36	Esther Parsell	32	Wife	—	Indiana
37	Alfred Parsell	11	Son	—	Indiana
38	Edward Parsell	8	Son	—	Indiana
39	David Parsell	2	Son	—	Indiana
40	Leonard Parsell	0	Son	—	Indiana

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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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