Charles Leonard — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Miami-County, Ohio

Our Model Tree links this Charles Leonard across the 1920, 1930 and 1940 US Censuses in Miami-County, Ohio (XGBoost, ~Confirmed) — first a head (b.~1900), then head of a 6-person household.

Age 40 b. ~1900 Male Head Born: Ohio Married

1940 Census Record Details

Census Year	1940
Location	Miami-County, Ohio
Surname	Leonard
Given Name	Charles
Relationship to Head	Head
Sex	M
Color / Race	White
Age	40
Marital Status	Married
Birthplace	Ohio
1935 Residence (City)	Piqua
1935 Residence (County)	Miami
Additional Details
Occupation	Finisher
Industry	Metal
Class of Worker	PW
Hours Worked	32
Income (1939)	1000
Highest Grade	No 8
1935 Residence	Ohio
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio
Occupation	Finisher
Township / Ward	Covington Village
Est. Birth Year	~1900

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.

6 people recorded at the same address in the 1940 census.

Name	Relation to head	Relative to Charles	Age	Birth yr
Margaret Leonard	Spouse	—	34	~1906
Charles Leonard	Head	—	40	~1900
Minnie Moyer	Other	—	56	~1884
Jack Leonard	Son	—	7	~1933
Joan Leonard	Daughter	—	10	~1930
Charles Leonard	Son	—	5	~1935

Census Appearances

1920

Miami, Ohio

Other, age 20

Miami, Ohio · implied b. ~1900 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Leonard
Given Name	Chas A
Relationship to Head	step son
Sex	M
Color / Race	White
Age	20
Marital Status	Single
Birthplace	Ohio
Father's Birthplace	Ohio
Mother's Birthplace	Ohio
Occupation	Laborer
Industry	veneer factory
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

1930

Miami, Ohio

Head, age 30

Miami, Ohio · implied b. ~1900 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Leonard
Given Name	Charles
Relationship to Head	Head
Sex	M
Color / Race	White
Age	30
Marital Status	Married
Birthplace	Ohio
Age at First Marriage	28
Father's Birthplace	Ohio
Mother's Birthplace	Ohio
Occupation	Furnace installer
Industry	Furnace Co.
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	O
Home Value / Rent	2850
Veteran	No
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

1940

Miami-County, Ohio

Head, age 40

Miami-County, Ohio · implied b. ~1900 — 6 household members

Surname	Leonard
Given Name	Charles
Relationship to Head	Head
Sex	M
Color / Race	White
Age	40
Marital Status	Married
Birthplace	Ohio
1935 Residence (City)	Piqua
1935 Residence (County)	Miami
Occupation	Finisher
Industry	Metal
Class of Worker	PW
Hours Worked	32
Income (1939)	1000
Highest Grade	No 8
1935 Residence	Ohio
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

Model Tree

Linked across censuses

Our Model Tree links Charles Leonard 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 Leonard

Head · 1940 · age 40 · b. ~1900 · 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 — Miami-County, Ohio Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-03115-00635)

Line	Name	Age	Relation	Occupation	Birthplace
1	Loretta Worley	76	Head	—	Ohio
2	J. E. Kelsey	60	Head	Postal Clerk	Ohio
3	Vretie Kelsey	57	Wife	—	Ohio
4	Roscoe Sanse	51	Boarder	Carpenter	Ohio
5	P. L. Long	56	Head	Postal Clerk	Ohio
6	Nellie Long	51	Wife	—	Ohio
7	Frank W. Tyler	47	Head	Milkman	Indiana
8	Mabel Tyler	45	Wife	—	Ohio
9	Charles Tyler	23	Son	Assembler	Ohio
10	Kyragene Tyler	21	Daughter	Stenographer	Ohio
11	James Tyler	18	Son	—	Ohio
12	William Tyler	14	Son	—	Ohio
13	Joyce Tyler	11	Daughter	—	Ohio
14	John Tyler	11	Son	—	Ohio
15	Clyde O'Roark	50	Head	Foreman	Virginia
16	Blanche O'Roark	48	Wife	—	Ohio
17	Hilda O'Roark	25	Daughter	Reporter	Ohio
18	Richard O'Roark	23	Son	Engineer	Ohio
19	Charles Manning	43	Head	Electrician	Ohio
20	Iva Manning	44	Wife	—	Ohio
21	J. William Manning	23	Son	Electrician	Ohio
22	Marjorie Manning	19	Daughter in Law	—	Ohio
23	Jack Manning	20	Son	Attendant	Ohio
24	Elizabeth Manning	11	Daughter	—	Ohio
25	Clara Beard	63	Head	House Keeping	Ohio
26	Beard	None	—	—	—
27	—	None	—	—	—
28	Charles Leonard THIS PERSON	40	Head	Finisher	Ohio
29	Margaret Leonard	34	Wife	—	Ohio
30	Joan Leonard	10	Daughter	—	Ohio
31	Jack Leonard	7	Son	—	Ohio
32	Charles Jr Leonard	5	Son	—	Ohio
33	Minnie Moyer	56	Mother	—	Ohio
34	Joseph Bragg	43	Head	Machinist	Ohio
35	Florence Bragg	40	Wife	—	Ohio
36	Beatrice Bragg	18	Daughter	—	Ohio
37	Mary Bragg	17	Daughter	—	Ohio
38	Douglas Bragg	2	Son	—	Ohio
39	Agnes Boehringer	70	Head	—	Ohio
40	Christ Goerckelmann	70	Head	—	Germany

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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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