Charles Chapman — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Lucas-County, Ohio

Our Model Tree links this Charles Chapman across the 1920, 1930 and 1940 US Censuses in Lucas-County, Ohio (XGBoost, ~Confirmed) — first a head (b.~1883), then head of a 4-person household.

Age 57 b. ~1883 Male Head Born: Ohio Married

1940 Census Record Details

Census Year	1940
Location	Lucas-County, Ohio
Surname	Chapman
Given Name	Charles
Relationship to Head	Head
Sex	M
Color / Race	White
Age	57
Marital Status	Married
Birthplace	Ohio
1935 Residence (City)	Toledo
1935 Residence (County)	Lucas
Additional Details
Occupation	Machinist
Industry	Pressed engine mfg.
Class of Worker	PW
Hours Worked	40
Income (1939)	1500
Highest Grade	8
1935 Residence	Same house
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio
Occupation	Machinist
Township / Ward	Toledo
Est. Birth Year	~1883

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 Charles	Age	Birth yr
Amanda Pfeifer	Other	—	84	~1856
Cora Chapman	Spouse	—	57	~1883
Harry Chapman	Son	—	34	~1906
Charles Chapman	Head	—	57	~1883

Census Appearances

1920

Lucas, Ohio

Head, age 37

Lucas, Ohio · implied b. ~1883 — 6 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Chapman
Given Name	Charles A
Relationship to Head	head
Sex	M
Color / Race	White
Age	37
Marital Status	Married
Birthplace	Ohio
Father's Birthplace	un
Mother's Birthplace	Ohio
Occupation	Watchman
Industry	Manufacturing Co
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Home Owned/Rented	O
Home Free/Mortgaged	M
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

1930

Lucas, Ohio

Head, age 47

Lucas, Ohio · implied b. ~1883

● Primary link · ~Confirmed · 1 source

XGBoost

Surname	Chapman
Given Name	Charles H
Relationship to Head	Head
Sex	M
Color / Race	White
Age	47
Marital Status	Married
Birthplace	Ohio
Age at First Marriage	19
Father's Birthplace	Ohio
Mother's Birthplace	Ohio
Occupation	machinist
Industry	engineering
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	O
Home Value / Rent	6000
Radio Set	R
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

1940

Lucas-County, Ohio

Head, age 57

Lucas-County, Ohio · implied b. ~1883 — 4 household members

Surname	Chapman
Given Name	Charles
Relationship to Head	Head
Sex	M
Color / Race	White
Age	57
Marital Status	Married
Birthplace	Ohio
1935 Residence (City)	Toledo
1935 Residence (County)	Lucas
Occupation	Machinist
Industry	Pressed engine mfg.
Class of Worker	PW
Hours Worked	40
Income (1939)	1500
Highest Grade	8
1935 Residence	Same house
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

Model Tree

Linked across censuses

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

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This person

Anchor record

Charles Chapman

Head · 1940 · age 57 · b. ~1883 · 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 — Lucas-County, Ohio Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-03264-00582)

Line	Name	Age	Relation	Occupation	Birthplace
1	Mae E Donohue	29	Wife	—	Ohio
2	Carol M Donohue	7	Daughter	—	Ohio
3	Doris A Donohue	6	Daughter	—	Ohio
4	John S Donohue	4	Son	—	Ohio
5	Thomas E Donohue	3	Son	—	Ohio
6	Janet L Donohue	1	Daughter	—	Ohio
7	Allen Donahue	45	Head	—	Michigan
8	John E Davis	34	Head	Attendant	Italy
9	Violet B Davis	30	Wife	—	Illinois
10	Josephine Davis	6	Daughter	—	Ohio
11	Mary Davis	4	Daughter	—	Ohio
12	Rosemary Decarlo	8	Lodger	—	Illinois
13	Charles Chapman THIS PERSON	57	Head	Machinist	Ohio
14	Cora L Chapman	57	Wife	—	Ohio
15	Harry Chapman	34	Son	Chauffeur	Ohio
16	Amanda Pfeifer	84	Mother-in-law	—	Ohio
17	Wyatt Ebola	60	Head	Electrician	Ohio
18	Bertha B Ebola	60	Wife	—	Ohio
19	Hazel V Ebola	18	Daughter	Clerk	Ohio
20	Pearl Nehlan	64	Baby-s	—	Ohio
21	John O'Connell	49	Head	Policeman	Eire
22	John Jr O'Connell	14	Son	—	Ohio
23	Joseph O'Connell	11	Son	—	Ohio
24	Mary Swinehart	63	Servant	House Keeper	New York
25	Milton P Marohn	39	Head	Meat Inspector	Germany
26	Josephine S Marohn	41	Wife	—	Ohio
27	Bertha S Emmel	60	Head	—	Germany
28	Ruth C Emmel	37	Daughter	Stenographer	Ohio
29	George W Lighthizer	51	Head	Brakeman	Ohio
30	Edna Lighthizer	49	Wife	—	Indiana
31	Patricia J Lighthizer	2	Daughter	—	Ohio
32	Charles H Pierce	55	Head	Conductor	Indiana
33	Edward W Pierce	16	Son	—	Ohio
34	Donald J Pierce	14	Son	—	Ohio
35	Mamie Bauer	48	Servant	House Keeper	Ohio
36	Bayard Douglas	41	Head	Clerk	Ohio
37	Lila Douglas	41	Wife	Clerk	Indiana
38	Marilyn Douglas	18	Daughter	—	Ohio
39	James Douglas	17	Son	—	Ohio
40	Fred N Slavin	61	Head	Locomotive Engineer	Ohio

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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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