Robert Nelson — 1940 US Census Record

Model Tree available

1940 United States Federal Census · King-County, Washington

Our Model Tree links this Robert Nelson across the 1920, 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed), with identified parents Peter — first a head (b.~1904), then head of a 3-person household.

Age 36 b. ~1904 Male Head Born: Washington Married

1940 Census Record Details

Census Year	1940
Location	King-County, Washington
Surname	Nelson
Given Name	Robert B.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	36
Marital Status	Married
Birthplace	Washington
1935 Residence (City)	Seattle City
1935 Residence (County)	King
Additional Details
Occupation	Manager
Industry	Fire Co.
Class of Worker	PW
Hours Worked	48
Income (1939)	3000
Highest Grade	C 2
1935 Residence	Same place
Birth State	Washington
Birth Country	United States
Birthplace (normalized)	washington
Occupation	Manager
Township / Ward	Seattle City
Est. Birth Year	~1904

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 Robert	Age	Birth yr
Robert Nelson	Head	—	36	~1904
Robert Nelson	Son	—	1	~1939
Adalah Nelson	Spouse	—	31	~1909

Census Appearances

1920

King, Washington

Other, age 15

King, Washington · implied b. ~1905 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Nelson
Given Name	Robert
Relationship to Head	Brother
Sex	M
Color / Race	White
Age	15
Marital Status	Single
Birthplace	Washington
Father's Birthplace	Norway
Mother's Birthplace	Norway
Occupation	none
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Norwegian
Birth State	Washington
Birth Country	United States
Birthplace (normalized)	washington

1930

King, Washington

Son, age 25

King, Washington · implied b. ~1905 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Nelson
Given Name	Robert B.
Relationship to Head	Son
Sex	M
Color / Race	White
Age	25
Marital Status	Single
Birthplace	Washington
Father's Birthplace	Norway
Mother's Birthplace	Norway
Occupation	Salesman
Industry	Auto Tires
Class of Worker	W
Can Read/Write	Yes
Birth State	Washington
Birth Country	United States
Birthplace (normalized)	washington

1940

King-County, Washington

Head, age 36

King-County, Washington · implied b. ~1904 — 3 household members

Surname	Nelson
Given Name	Robert B.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	36
Marital Status	Married
Birthplace	Washington
1935 Residence (City)	Seattle City
1935 Residence (County)	King
Occupation	Manager
Industry	Fire Co.
Class of Worker	PW
Hours Worked	48
Income (1939)	3000
Highest Grade	C 2
1935 Residence	Same place
Birth State	Washington
Birth Country	United States
Birthplace (normalized)	washington

Model Tree

Model Tree available

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

Show:

Gen 1 Parents confidence ≈ 0.92

Father

Peter Nelson

b. ~1871

Source father

● Household · direct · ~0.92

This person

Anchor record

Robert Nelson

Head · 1940 · age 36 · b. ~1904 · Washington

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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 — King-County, Washington Open full size

Page Contents

35 people indexed on this census page (nara:1940:m-t0627-04378-00219)

Line	Name	Age	Relation	Occupation	Birthplace
41	Earl C. Muir	64	Head	—	Illinois
42	Jennie M. Muir	51	Wife	—	Missouri
43	Jack O. Lavender	31	Head	Salesman	Washington
44	Betty Lavender	30	Wife	Salesgirl	Washington
46	Arthur Norwood	50	Head	File Clerk	Washington
47	Arthur Norwood	40	Brother	—	Washington
48	Ruth Peaslee	68	Head	—	Michigan
49	Myron Peaslee	42	Son	Seaman	N. Dakota
51	John Kelly	27	Head	Truck Driver	Washington
52	Edna Kelly	27	Wife	Mail-Order Worker	Canada-English
53	Edmund Erichsen	30	Head	Cook	Minnesota
54	Helen Erichsen	30	Wife	—	Washington
55	Martha Erichsen	19	Daughter	Servant	Washington
56	Mary Erichsen	14	Daughter	Servant	Washington
57	Daniel Erichsen	16	Son	—	Washington
58	Edward Cannon	40	Head	Inspector	Iowa
59	Eva Cannon	35	Wife	—	Montana
60	Frank Mcfarland	38	Head	Advertising Man	Washington
61	Della Mcfarland	35	Wife	—	Kansas
62	Jean Mcfarland	15	Daughter	—	Minnesota
63	Jerry Mcfarland	2	Son	—	Washington
64	Victor Buond	47	Head	Upholsterer	Iowa
65	Charlotte Buond	38	Wife	—	Canada-English
66	Robert Riley	27	Head	Orderly	Minnesota
67	Alice Riley	24	Wife	Nurse	Oregon
69	Flora Markham	71	Head	—	Connecticut
70	Charles Currier	75	Brother	—	Ohio
71	William Harshager	60	Head	Butcher	Bavaria
72	Ada Harshager	69	Wife	Cook	Austria
75	John Hunt	50	Head	Caretaker	Finland
76	Holger Hunt	28	Son	Meter-Setter	Washington
77	Robert Hunt	23	Son	Serviceman	Washington
78	Robert B. Nelson THIS PERSON	36	Head	Manager	Washington
79	Adalah Nelson	31	Wife	—	Washington
80	Robert Jr. Nelson	1	Son	—	Washington

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Pedigree Summary

Robert

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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