John Chapman — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Polk-County, Iowa

Our Model Tree links this John Chapman across the 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed), with identified parents John & Willie — first a head (b.~1912), then head of a 4-person household.

Age 28 b. ~1912 Male Head Born: Iowa Married

1940 Census Record Details

Census Year	1940
Location	Polk-County, Iowa
Surname	Chapman
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	Black
Age	28
Marital Status	Married
Birthplace	Iowa
1935 Residence (City)	Des Moines City
1935 Residence (County)	Polk
Additional Details
Occupation	waiter
Industry	Hotel
Class of Worker	PW
Hours Worked	48
Income (1939)	364
Highest Grade	Hs 2
1935 Residence	Same place
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa
Occupation	Waiter
Township / Ward	Des Moines City
Est. Birth Year	~1912

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 John	Age	Birth yr
Janice Chapman	Daughter	—	3	~1937
John Chapman	Head	—	28	~1912
Raymond Chapman	Son	—	4	~1936
Lillian Chapman	Spouse	—	29	~1911

Census Appearances

1920

Polk, Iowa

Son, age 7

Polk, Iowa · implied b. ~1913 — 9 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Chapman
Given Name	John
Relationship to Head	Son
Sex	M
Color / Race	Black
Age	7
Marital Status	Single
Birthplace	Iowa
Father's Birthplace	Virginia
Mother's Birthplace	Virginia
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1930

Polk, Iowa

Son, age 18

Polk, Iowa · implied b. ~1912 — 7 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Chapman
Given Name	John
Relationship to Head	Son
Sex	M
Color / Race	Black
Age	18
Marital Status	Single
Birthplace	Iowa
Father's Birthplace	Virginia
Mother's Birthplace	Virginia
Can Read/Write	Yes
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1940

Polk-County, Iowa

Head, age 28

Polk-County, Iowa · implied b. ~1912 — 4 household members

Surname	Chapman
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	Black
Age	28
Marital Status	Married
Birthplace	Iowa
1935 Residence (City)	Des Moines City
1935 Residence (County)	Polk
Occupation	waiter
Industry	Hotel
Class of Worker	PW
Hours Worked	48
Income (1939)	364
Highest Grade	Hs 2
1935 Residence	Same place
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

Model Tree

Model Tree available

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

Show:

Gen 1 Parents confidence ≈ 0.92

Father

John Chapman

b. ~1867

Source father

● Household · direct · ~0.92

Mother

Willie Chapman

b. ~1868

Source mother

● Household · direct · ~0.92

This person

Anchor record

John Chapman

Head · 1940 · age 28 · b. ~1912 · 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-t0627-01196-00701)

Line	Name	Age	Relation	Occupation	Birthplace
41	Johanna Beauford	7	daughter	—	Iowa
42	Mary Alma Beauford	12	granddaughter	—	Iowa
43	Margaret Julia Beauford	10	granddaughter	—	Iowa
44	Bernice Beauford	8	granddaughter	—	Iowa
45	Ruby Beauford	6	granddaughter	—	Iowa
46	Phyllis Beauford	1	daughter	—	Iowa
47	Lucious Frazier	46	Head	Mechanics Helper	Arkansas
48	Nellie Frazier	48	wife	—	Arkansas
49	Prezell Frazier	24	son	Sign Painter	Arkansas
50	Clarence Frazier	16	son	—	Iowa
51	Rosey Miller	45	Head	—	N. Carolina
52	Theodore Miller	22	son	Elevator Boy	Iowa
53	Ruth Miller	20	daughter	Maid	Iowa
54	Mainette Miller	16	daughter	—	Iowa
55	Clarence Miller	18	son	—	Iowa
56	Pauline Miller	15	daughter	—	Iowa
57	Jonnie Miller	12	daughter	—	Iowa
58	Leon Miller	10	son	—	Iowa
59	Ruth Miller	8	daughter	—	Iowa
60	Mary Miller	5	daughter	—	Iowa
61	Thomas Miller	2	son	—	Iowa
62	Frank Brent	56	Head	Miner	Missouri
63	Hannah G. Brent	48	wife	—	Kansas
64	Albert Brent	20	son	Miner	Iowa
65	John Chapman THIS PERSON	28	Head	Waiter	Iowa
66	Lillian Chapman	29	wife	—	Iowa
67	Raymond Chapman	4	son	—	Iowa
68	Janice Marlene Chapman	3	daughter	—	Iowa
69	Susan Curtis	73	Head	—	Ohio
70	Raymond H. Curtis	35	son	Operator	Iowa
71	John Harris	20	Head	Miner	Iowa
72	Daisy Harris	18	wife	Maid	Iowa
73	Albert White	68	Head	Laborer	Louisiana
74	Matilda Caldwell	70	Head	—	N. Carolina
75	Lillian Caldwell	27	daughter	—	Iowa
76	Leander Spencer	70	lodger	—	N. Carolina
77	William J. Overton	53	Head	Truck Driver	Iowa
78	Dollie Overton	47	wife	—	Iowa
79	Larry W. Overton	2	grandson	—	Iowa
80	Fred Tolson	61	Head	Pipe Layer	Missouri

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Pedigree Summary

John

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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