Charles Leonard — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Polk-County, Iowa

Our Model Tree links this Charles Leonard across the 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed), with identified parents Frank & Caroline — first a head (b.~1898), then head of a 4-person household.

Age 42 b. ~1898 Male Head Born: Iowa Married

1940 Census Record Details

Census Year	1940
Location	Polk-County, Iowa
Surname	Leonard
Given Name	Charles
Relationship to Head	Head
Sex	M
Color / Race	White
Age	42
Marital Status	Married
Birthplace	Iowa
1935 Residence (City)	Des Moines
1935 Residence (County)	Polk
Additional Details
Occupation	Owner
Industry	Upholstering
Class of Worker	OA
Hours Worked	48
Income (1939)	0
Highest Grade	G 8
1935 Residence	Iowa
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa
Occupation	Owner
Township / Ward	Des Moines
Est. Birth Year	~1898

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
Charles Leonard	Son	—	16	~1924
Charles Leonard	Head	—	42	~1898
Augusta Leonard	Spouse	—	39	~1901
Ellen Leonard	Daughter	—	18	~1922

Census Appearances

1920

Polk, Iowa

Son, age 22

Polk, Iowa · implied b. ~1898 — 11 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Leonard
Given Name	Chas
Relationship to Head	Son
Sex	M
Color / Race	White
Age	22
Marital Status	Single
Birthplace	Iowa
Father's Birthplace	Italy
Mother's Birthplace	Italy
Occupation	none
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Italian
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1930

Polk, Iowa

Head, age 32

Polk, Iowa · implied b. ~1898 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Leonard
Given Name	Charles A.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	32
Marital Status	Married
Birthplace	Iowa
Age at First Marriage	22
Father's Birthplace	Italy
Mother's Birthplace	Italy
Occupation	Upholsterer
Industry	Own business
Class of Worker	OA
Can Read/Write	Yes
Home Owned/Rented	O
Home Value / Rent	6000
Radio Set	R
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1940

Polk-County, Iowa

Head, age 42

Polk-County, Iowa · implied b. ~1898 — 4 household members

Surname	Leonard
Given Name	Charles
Relationship to Head	Head
Sex	M
Color / Race	White
Age	42
Marital Status	Married
Birthplace	Iowa
1935 Residence (City)	Des Moines
1935 Residence (County)	Polk
Occupation	Owner
Industry	Upholstering
Class of Worker	OA
Hours Worked	48
Income (1939)	0
Highest Grade	G 8
1935 Residence	Iowa
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

Model Tree

Model Tree available

Our Model Tree links Charles Leonard across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Leonard (~0.92 confidence) and mother Caroline Leonard (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.

Show:

Gen 1 Parents confidence ≈ 0.92

Father

Frank Leonard

b. ~1870

Source father

● Household · direct · ~0.92

Mother

Caroline Leonard

b. ~1875

Source mother

● Household · direct · ~0.92

This person

Anchor record

Charles Leonard

Head · 1940 · age 42 · b. ~1898 · Iowa

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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 — Polk-County, Iowa Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01193-00309)

Line	Name	Age	Relation	Occupation	Birthplace
1	Mauritina Grady	72	Head	—	Iowa
2	Carl Hougham	53	Head	Owner	Iowa
3	Leela Hougham	50	Wife	—	Iowa
4	Wyne Wilson	37	Head	Supervisor	Iowa
5	Marian Wilson	32	Wife	—	Iowa
6	Thomas Wilson	8	Son	—	Iowa
7	Charles Wilson	4	Son	—	Iowa
8	Charles Leonard THIS PERSON	42	Head	Owner	Iowa
9	Augusta Leonard	39	Wife	—	Iowa
10	Ellen Leonard	18	Daughter	Comptometer	Iowa
11	Charles Leonard	16	Son	—	Iowa
12	August Conradi	80	Head	Own Business	Germany
13	Elizabeth Conradi	78	Wife	—	Germany
14	Harold Nims	41	Head	Mechanic	Iowa
15	Alice Nims	37	Wife	—	Iowa
16	Daryl Nims	14	Son	Handy Boy	Iowa
17	Jean Nims	11	Daughter	—	Iowa
18	Dean Nims	8	Son	—	Iowa
19	Margaret Wiedeman	34	Head	—	Iowa
20	Norman Wiedeman	13	Son	—	Iowa
21	Herman Wiedeman	8	Son	—	Iowa
22	Jane Dahl	29	Sister	Waitress	Iowa
23	William Wilson	41	Head	Owner	Iowa
24	Ruth Wilson	37	Wife	—	Iowa
25	Jeanett Wilson	18	Daughter	—	Iowa
26	Ernest Wilson	14	Son	—	Iowa
27	William Charles Wilson	4	Son	—	Iowa
28	Ralph J. Olsen	43	Head	Superintendent	Minnesota
29	Marjorie Olsen	38	Wife	—	Minnesota
30	Dean Ralph Olsen	10	Son	—	North Dakota
31	William H. Brickley	41	Head	Carpenter	Germany
32	Mae R. Brickley	41	Wife	—	Illinois
33	Alma G. Brickley	20	Daughter	—	Iowa
34	Erma Brickley	19	Daughter	Inspector	Iowa
35	Russell Hoffman	37	Head	Own Business	Iowa
36	Vivienne Hoffman	37	Wife	—	Iowa
37	Dennis Hoffman	3	Son	—	Iowa
38	Edgar Hoffman	62	Head	Salesman	Iowa
39	Fay Pearl Hoffman	55	Wife	—	Iowa
40	R. Paul Md Morder	34	Head	Medical Doctor	Iowa

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Pedigree Summary

Charles

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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