David Clark — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Ross-County, Ohio

Our Model Tree links this David Clark across the 1920, 1930 and 1940 US Censuses in Ross-County, Ohio (XGBoost, ~Confirmed) — first a head (b.~1905), then head of a 5-person household.

Age 35 b. ~1905 Male Head Born: Washington Married

1940 Census Record Details

Census Year	1940
Location	Ross-County, Ohio
Surname	Clark
Given Name	David C.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	35
Marital Status	Married
Birthplace	Washington
1935 Residence (City)	Chillicothe
1935 Residence (County)	Ross
Additional Details
Occupation	Stationary Fireman
Industry	Paper mill
Class of Worker	PW
Hours Worked	48
Income (1939)	1404
Highest Grade	No 8
1935 Residence	Same house
Birth State	Washington
Birth Country	United States
Birthplace (normalized)	washington
Occupation	Stationary Fireman
Township / Ward	Chillicothe
Est. Birth Year	~1905

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 David	Age	Birth yr
Richard Clark	Son	—	13	~1927
Peggy Clark	Daughter	—	5	~1935
David Clark	Head	—	35	~1905
John Clark	Son	—	16	~1924
Margaret Clark	Spouse	—	36	~1904

Census Appearances

1920

Ross, Ohio

Son, age 16

Ross, Ohio · implied b. ~1904

● Primary link · ~Confirmed · 1 source

XGBoost

Surname	Clark
Given Name	David
Relationship to Head	Son
Sex	M
Color / Race	White
Age	16
Marital Status	Single
Birthplace	Washington
Father's Birthplace	Tennessee
Mother's Birthplace	Tennessee
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Washington
Birth Country	United States
Birthplace (normalized)	washington

1930

Ross, Ohio

Head, age 26

Ross, Ohio · implied b. ~1904 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Clark
Given Name	David
Relationship to Head	Head
Sex	M
Color / Race	White
Age	26
Marital Status	Married
Birthplace	Washington
Age at First Marriage	18
Father's Birthplace	Tennessee
Mother's Birthplace	Tennessee
Occupation	Paper Maker
Industry	Paper mill
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	R
Home Value / Rent	18
Radio Set	R
Birth State	Washington
Birth Country	United States
Birthplace (normalized)	washington

1940

Ross-County, Ohio

Head, age 35

Ross-County, Ohio · implied b. ~1905 — 5 household members

Surname	Clark
Given Name	David C.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	35
Marital Status	Married
Birthplace	Washington
1935 Residence (City)	Chillicothe
1935 Residence (County)	Ross
Occupation	Stationary Fireman
Industry	Paper mill
Class of Worker	PW
Hours Worked	48
Income (1939)	1404
Highest Grade	No 8
1935 Residence	Same house
Birth State	Washington
Birth Country	United States
Birthplace (normalized)	washington

Model Tree

Linked across censuses

Our Model Tree links David 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

David Clark

Head · 1940 · age 35 · b. ~1905 · Ohio

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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 — Ross-County, Ohio Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-03138-00520)

Line	Name	Age	Relation	Occupation	Birthplace
1	Glenn M. Calhoun	10	Son	—	Ohio
2	Everett A. Barnett	30	Head	Pipe Fitter	Ohio
3	Frances D. Barnett	25	Wife	—	Ohio
4	Beverly A. Barnett	2	Daughter	—	Ohio
5	William F. Music	67	Head	Boiler Maker Helper	Ohio
6	Katherine Music	67	Wife	—	Ohio
7	Gerald F. Music	16	Son	New Worker	Ohio
8	Donald L. Music	15	Son	—	Ohio
9	David C. Clark THIS PERSON	35	Head	Stationary Fireman	Washington
10	Margaret M. Clark	36	Wife	—	Ohio
11	John D. Clark	16	Son	—	Ohio
12	Richard A. Clark	13	Son	—	Ohio
13	Peggy A. Clark	5	Daughter	—	Ohio
14	William Lemley	36	Head	Boiler Maker Helper	Illinois
15	Violet C. Lemley	20	Wife	—	Ohio
16	Charles L. Lemley	2	Son	—	Ohio
17	William M. Lemley	1	Son	—	Ohio
18	William D. Bean	63	Head	Plumber	Illinois
19	Helena Bean	63	Wife	—	Tennessee
20	Lorena Barnett	60	Head	—	Ohio
21	Arthur W. May	24	Head	Instrument Mechanic	Ohio
22	Virginia D. May	22	Wife	—	Ohio
23	Janette F. May	1	Daughter	—	Ohio
24	Minnie H. Valentine	80	Head	—	Virginia
25	Benj. M. E. Valentine	67	Head	Supply Man	Ohio
26	Hazel G. Valentine	50	Wife	Dietitian	Ohio
27	Clifford S. Valentine	28	Son	New Worker	Ohio
28	Herbert L. Valentine	26	Son	New Worker	Ohio
29	Donald G. Valentine	22	Son	New Worker	Ohio
30	Robert C. Valentine	19	Son	Company Clerk	Ohio
31	Glenn W. Valentine	17	Son	—	Ohio
32	Helen Helen L. Valentine	13	Daughter	—	Ohio
33	Amos C. Neff	32	Head	Clerk	Ohio
34	Ethel M. Neff	32	Wife	—	Ohio
35	Glenn L. Neff	10	Son	—	Ohio
36	Mary J. Neff	7	Daughter	—	Ohio
37	Richard L. Neff	2	Son	—	Ohio
38	Fay E. Neff	2	Daughter	—	Ohio
39	Edward L. Cotting	36	Head	Milk Salesman	Massachusetts
40	Mary E. Cotting	32	Wife	Cut Out Stitcher	West Virginia

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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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