William Roberts — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Washington-County, Iowa

Our Model Tree links this William Roberts across the 1920, 1930 and 1940 US Censuses in Washington-County, Iowa (XGBoost, ~Confirmed), with identified parents Lincoln — first a head (b.~1900), then head of a 4-person household.

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

1940 Census Record Details

Census Year	1940
Location	Washington-County, Iowa
Surname	Roberts
Given Name	William D
Relationship to Head	Head
Sex	M
Color / Race	White
Age	40
Marital Status	Married
Birthplace	Iowa
1935 Residence (City)	Oregon Township
1935 Residence (County)	Washington
Additional Details
Occupation	Farmer
Industry	Farm
Class of Worker	OA
Hours Worked	75
Income (1939)	0
Highest Grade	Hs 3
1935 Residence	Same place
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa
Occupation	Farmer
Township / Ward	Oregon Township
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.

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

Name	Relation to head	Relative to William	Age	Birth yr
William Roberts	Head	—	40	~1900
Carl Roberts	Son	—	9	~1931
Dale Roberts	Son	—	4	~1936
Bessie Roberts	Spouse	—	31	~1909

Census Appearances

1920

Washington, Iowa

Son, age 20

Washington, Iowa · implied b. ~1900 — 2 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Roberts
Given Name	William D.
Relationship to Head	Son
Sex	M
Color / Race	White
Age	20
Marital Status	Single
Birthplace	Iowa
Father's Birthplace	New York
Mother's Birthplace	Missouri
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1930

Washington, Iowa

Son, age 30

Washington, Iowa · implied b. ~1900 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Roberts
Given Name	William D
Relationship to Head	Son
Sex	M
Color / Race	White
Age	30
Marital Status	Single
Birthplace	Iowa
Father's Birthplace	New York
Mother's Birthplace	Missouri
Occupation	Farmer
Industry	Farm
Class of Worker	VVVV
Can Read/Write	Yes
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1940

Washington-County, Iowa

Head, age 40

Washington-County, Iowa · implied b. ~1900 — 4 household members

Surname	Roberts
Given Name	William D
Relationship to Head	Head
Sex	M
Color / Race	White
Age	40
Marital Status	Married
Birthplace	Iowa
1935 Residence (City)	Oregon Township
1935 Residence (County)	Washington
Occupation	Farmer
Industry	Farm
Class of Worker	OA
Hours Worked	75
Income (1939)	0
Highest Grade	Hs 3
1935 Residence	Same place
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

Model Tree

Model Tree available

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

Show:

Gen 1 Parents confidence ≈ 0.92

Father

Lincoln Roberts

b. ~1868

Source father

● Household · direct · ~0.92

This person

Anchor record

William Roberts

Head · 1940 · age 40 · b. ~1900 · Iowa

★ You are viewing this record

Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1940 US Federal Census — Washington-County, Iowa Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01211-00391)

Line	Name	Age	Relation	Occupation	Birthplace
1	John O Rath	60	Head	Proprietor	Iowa
2	Lillian M Rath	53	Wife	—	Kansas
3	Oscar A Coon	60	Lodger	Salesman	Iowa
4	Venice Mccreedy	54	Head	Cook	Missouri
5	Geraldine Mccreedy	14	daughter	—	Iowa
6	John R Watson	23	Hired man	Attendant	Iowa
7	Bernice Watson	21	Hired man's wife	Cook	Iowa
8	Daniel W Griffith	73	Head	Farmer	New York
9	Jennie A Griffith	76	Wife	—	New York
10	William D Roberts THIS PERSON	40	Head	Farmer	Iowa
11	Bessie L Roberts	31	Wife	—	Iowa
12	Carl W Roberts	9	son	—	Iowa
13	Dale E Roberts	4	son	—	Iowa
14	Lincoln G Roberts	72	Head	Farmer	New York
15	Mary J Roberts	65	Wife	—	Missouri
16	Clarence D Luefer	25	Head	Farm Labor	Iowa
17	Daisy A Luefer	24	Wife	—	Iowa
18	Mary A Luefer	4	daughter	—	Iowa
19	Glenna R Luefer	2	son	—	Iowa
20	Clark A Pfeifer	35	Head	Farming	Iowa
21	Jane E Pfeifer	34	Wife	—	Iowa
22	Leo F Pfeifer	11	son	—	Iowa
23	Margaret J Pfeifer	10	daughter	—	Iowa
24	Edith M Pfeifer	8	daughter	—	Iowa
25	William J Day	58	Head	Farming	Illinois
26	Evelyn L Day	47	Wife	—	Illinois
27	Elizabeth L Day	20	daughter	Housekeeping	Iowa
28	William E Day	18	son	—	Iowa
29	John R Day	14	son	—	Iowa
30	Everett T Roberts	33	Head	Farming	Iowa
31	Marjorie G Roberts	35	Wife	—	Iowa
32	Harry Pearson	62	Head	Farming	Iowa
33	L. Luine Pearson	54	Wife	—	Iowa
34	Floyd Cooper	33	Head	Farm Labor	Missouri
35	Gladys D Cooper	32	Wife	—	Missouri
36	Alene D Cooper	12	daughter	—	Missouri
37	Emma E Cooper	11	daughter	—	Missouri
38	William E Frame	63	Head	Farmer	Ohio
39	Margaret E Frame	54	Wife	—	Iowa
40	John F Frame	21	son	Farm Labor	Iowa

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Pedigree Summary

William

Gen 1 · 1 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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