Robert Boyd — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Polk-County, Iowa

Our Model Tree links this Robert Boyd across the 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed), with identified parents Hans & Mary — first a son (b.~1914), then head of a 4-person household.

Age 26 b. ~1914 Male Son Born: Iowa Single

1940 Census Record Details

Census Year	1940
Location	Polk-County, Iowa
Surname	Boyd
Given Name	Robert L.
Relationship to Head	Son
Sex	M
Color / Race	White
Age	26
Marital Status	Single
Birthplace	Iowa
1935 Residence (City)	Des Moines City
1935 Residence (County)	Polk
Additional Details
Occupation	Clerk
Industry	Farm Implements
Class of Worker	PW
Hours Worked	42
Income (1939)	850
Highest Grade	C 2
1935 Residence	Same place
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa
Occupation	Clerk
Township / Ward	Des Moines City
Est. Birth Year	~1914

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 Robert	Age	Birth yr
Gretchen Boyd	Daughter	—	28	~1912
Mary Boyd	Head	—	54	~1886
Robert Boyd	Son	—	26	~1914
Harvey Boyd	Son	—	23	~1917

Census Appearances

1920

Polk, Iowa

Son, age 6

Polk, Iowa · implied b. ~1914 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Boyd
Given Name	Robert
Relationship to Head	Son
Sex	M
Color / Race	White
Age	6
Marital Status	Single
Birthplace	Iowa
Father's Birthplace	Kansas
Mother's Birthplace	Iowa
Can Read	Yes
Speaks English	Yes
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1930

Polk, Iowa

Son, age 16

Polk, Iowa · implied b. ~1914 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Boyd
Given Name	Robert E.
Relationship to Head	Son
Sex	M
Color / Race	White
Age	16
Marital Status	Single
Birthplace	Iowa
Father's Birthplace	Kansas
Mother's Birthplace	Iowa
Occupation	Attendant
Industry	Oil Station
Class of Worker	W
Can Read/Write	Yes
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1940

Polk-County, Iowa

Son, age 26

Polk-County, Iowa · implied b. ~1914 — 4 household members

Surname	Boyd
Given Name	Robert L.
Relationship to Head	Son
Sex	M
Color / Race	White
Age	26
Marital Status	Single
Birthplace	Iowa
1935 Residence (City)	Des Moines City
1935 Residence (County)	Polk
Occupation	Clerk
Industry	Farm Implements
Class of Worker	PW
Hours Worked	42
Income (1939)	850
Highest Grade	C 2
1935 Residence	Same place
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

Model Tree

Model Tree available

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

Show:

Gen 1 Parents confidence ≈ 0.92

Father

Hans Boyd

b. ~1885

Source father

● Household · direct · ~0.92

Mother

Mary Boyd

b. ~1886

Source mother

● Household · direct · ~0.92

This person

Anchor record

Robert Boyd

Son · 1940 · age 26 · b. ~1914 · Iowa

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Sibling

Gretchen Boyd

Sibling · 1940 · age 28

Source co-child of head (derived)

● Co-child · derived · ~0.88

Sibling

Harvey Boyd

Sibling · 1940 · age 23

Source co-child of head (derived)

● Co-child · derived · ~0.88

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-t0627-01193-00399)

Line	Name	Age	Relation	Occupation	Birthplace
1	Billie Sutter	17	Son	—	Illinois
2	Mark C. Frosley	68	Head	—	Iowa
3	Ella B. Frosley	63	Wife	—	Illinois
4	Emmett L. Scott	73	Head	—	Iowa
5	Florence Scott	70	Wife	—	Iowa
6	Don Thompson	30	Head	Collector	Iowa
7	Thompson	24	Wife	Secretary	Iowa
8	Enola Draper	72	Head	—	Iowa
9	Edna Draper	43	Daughter	Kindergarten Teacher	Iowa
10	Elsie Powell	62	Head	Helper	Indiana
11	Edward Hosben	62	Head	Retailer	Iowa
12	Elizabeth Hosben	62	Wife	—	Iowa
13	Mary Boyd	54	Head	Telephone Op.	Iowa
14	Gretchen Boyd	28	Daughter	Underwriter	Iowa
15	Robert L. Boyd THIS PERSON	26	Son	Clerk	Iowa
16	Harvey L. Boyd	23	Son	Clerical	Iowa
17	Daniel Kauffman	69	Head	Lumberman	Iowa
18	Anna B. Kauffman	69	Wife	—	Denmark
19	Anna K. Krull	75	Lodger	—	Denmark
20	Fred Anderson	54	Head	Painter	Iowa
21	Viola Anderson	42	Wife	—	New Jersey
22	Anne Beth Anderson	11	Daughter	—	Iowa
23	Frederick Anderson	14	Son	—	Illinois
24	Wesley Deremich	34	Head	Clerical	Indiana
25	Ruby Deremich	29	Wife	—	Iowa
26	Viola Deremich	12	Daughter	—	Iowa
27	Dale Deremich	10	Son	—	Iowa
28	Sam Johnson	64	Head	Miner	Iowa
29	Leona Johnson	38	Daughter	Operate Ice Cream Stand	Missouri
30	Harold Johnson	35	Son	Miner	Iowa
31	Anna Mae Johnson	23	Daughter	Operate Ice Cream Stand	Iowa
32	J. Don Wiesler	29	Head	Preliminary Examiner	Iowa
33	Helen Wiesler	29	Wife	—	Iowa
34	Susan Wiesler	1	Daughter	—	Iowa
35	Charles W. Goering	34	Head	Contractor	Iowa
36	Carrie Goering	34	Wife	—	Iowa
37	Charles Jr. Goering	4	Son	—	Iowa
38	Lena Atkins	77	Mother-in-law	—	Iowa
39	—	None	—	—	—
40	—	None	—	—	—

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Pedigree Summary

Robert + 2 siblings

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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