William Robertson — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Washington-County, Iowa

Our Model Tree links this William Robertson across the 1920, 1930 and 1940 US Censuses in Washington-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1897), then head of a 3-person household.

Age 43 b. ~1897 Male Head Born: Iowa Married

1940 Census Record Details

Census Year	1940
Location	Washington-County, Iowa
Surname	Robertson
Given Name	William E.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	43
Marital Status	Married
Birthplace	Iowa
1935 Residence (City)	Dutch Creek
1935 Residence (County)	Washington
Additional Details
Occupation	Farmer
Industry	Farmer
Class of Worker	OA
Highest Grade	No 8
1935 Residence	Same place
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa
Occupation	Farmer
Township / Ward	Dutch Creek
Est. Birth Year	~1897

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.

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

Name	Relation to head	Relative to William	Age	Birth yr
Lucille Robertson	Daughter	—	19	~1921
William Robertson	Head	—	43	~1897
Helen Robertson	Spouse	—	40	~1900

Census Appearances

1920

Washington, Iowa

Head, age 22

Washington, Iowa · implied b. ~1898 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Robertson
Given Name	William E
Relationship to Head	Head
Sex	M
Color / Race	White
Age	22
Marital Status	Married
Birthplace	Iowa
Father's Birthplace	Iowa
Mother's Birthplace	Iowa
Occupation	Farmer
Industry	Farm
Class of Worker	OA
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Home Owned/Rented	R
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1930

Washington, Iowa

Head, age 33

Washington, Iowa · implied b. ~1897 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Robertson
Given Name	William C.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	33
Marital Status	Married
Birthplace	Iowa
Age at First Marriage	22
Father's Birthplace	Iowa
Mother's Birthplace	Iowa
Occupation	Farmer
Industry	General Farming
Class of Worker	VVVV O
Can Read/Write	Yes
Home Owned/Rented	R
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1940

Washington-County, Iowa

Head, age 43

Washington-County, Iowa · implied b. ~1897 — 3 household members

Surname	Robertson
Given Name	William E.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	43
Marital Status	Married
Birthplace	Iowa
1935 Residence (City)	Dutch Creek
1935 Residence (County)	Washington
Occupation	Farmer
Industry	Farmer
Class of Worker	OA
Highest Grade	No 8
1935 Residence	Same place
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

Model Tree

Linked across censuses

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

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This person

Anchor record

William Robertson

Head · 1940 · age 43 · b. ~1897 · 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 — Washington-County, Iowa Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01211-00108)

Line	Name	Age	Relation	Occupation	Birthplace
1	Wendell J. Pfeifer	66	Head	—	Iowa
2	Amelia Pfeifer	71	Wife	—	Iowa
3	Doyle Pfeifer	27	Son	Laborer	Iowa
4	Melvine Pfeifer	19	In-law	—	Iowa
5	Andy Sheetz	46	Head	Laborer	Iowa
6	Florence Sheetz	40	Wife	—	Iowa
7	Richard (Ab) Sheetz	18	Son	Laborer	Iowa
8	Marjorie (Ab) Sheetz	17	Daughter	—	Iowa
9	Roger Sheetz	15	Son	—	Iowa
10	Raymond Sheetz	13	Son	—	Iowa
11	Naomi Sheetz	11	Daughter	—	Iowa
12	Paul Sheetz	9	Son	—	Iowa
13	Pauline Sheetz	7	Daughter	—	Iowa
14	Imogene Sheetz	5	Daughter	—	Iowa
15	Larry Sheetz	2	Son	—	Iowa
16	James Sheetz	0	Son	—	Iowa
17	Roy Diggs	63	Head	Laborer	Iowa
18	Nathan E. Logan	41	Head	Substitute Mail Carrier	Iowa
19	Hugh Wolfe	75	Head	Salesman	Ohio
20	George Wolfe	72	Brother	—	Iowa
21	John Wolfe	68	Brother	Farmer	Iowa
22	Willard Wolfe	65	Brother	Farmer	Iowa
23	William E. Robertson THIS PERSON	43	Head	Farmer	Iowa
24	Helen Robertson	40	Wife	—	Iowa
25	Lucille Robertson	19	Daughter	—	Iowa
26	Howard Mangold	70	Head	Farmer	Iowa
27	Lillie Mangold	61	Wife	—	Illinois
28	Twila Mangold	17	Daughter	—	Iowa
29	Lee Mangold	10	Son	—	Iowa
30	Stanley Mangold	26	Son	Laborer	Iowa
31	Betty Mangold	23	In-law	—	Iowa
32	James C. Bowen	32	Head	Farmer	Iowa
33	Opal Bowen	29	Wife	—	Iowa
34	James Victor Bowen	2	Son	—	Iowa
35	Harry Cassady	22	Hired hand	Laborer	Missouri
36	Ross Yates	23	Head	Farmer	Missouri
37	Harlan Ornduff	30	Head	Laborer	Iowa
38	Mary Louise Ornduff	29	Wife	—	Iowa
39	Henry Sheetz	61	Head	Farmer	Iowa
40	Clara Sheetz	61	Wife	—	Iowa

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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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