Ruth Carlson — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · King-County, Washington

Our Model Tree links this Ruth Carlson across the 1920, 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed) — first a spouse (b.~1898), then head of a 5-person household.

Age 42 b. ~1898 Female Spouse Born: Sweden Married

1940 Census Record Details

Census Year	1940
Location	King-County, Washington
Surname	Carlson
Given Name	Ruth O. M.
Relationship to Head	wife
Sex	F
Color / Race	White
Age	42
Marital Status	Married
Birthplace	Sweden
1935 Residence (City)	Seattle City
1935 Residence (County)	King
Naturalization Status	Naturalized
Additional Details
Hours Worked	0
Highest Grade	No 8
1935 Residence	Same place
Birth Country	Sweden
Birthplace (normalized)	sweden
Township / Ward	Seattle City
Est. Birth Year	~1898

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.

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

Name	Relation to head	Relative to Ruth	Age	Birth yr
Eric Carlson	Head	—	49	~1891
Raymond Carlson	Son	—	19	~1921
Arthur Alm	Other	—	42	~1898
Ruth Carlson	Spouse	—	42	~1898
Betty Carlson	Daughter	—	12	~1928

Census Appearances

1920

King, Washington

Spouse, age 21

King, Washington · implied b. ~1899 — 2 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Carlson
Given Name	Ruth
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	21
Marital Status	Married
Birthplace	Sweden
Year of Immigration	1914
Naturalization Status	Alien
Father's Birthplace	Sweden
Mother's Birthplace	Sweden
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Swedish
Birth Country	Sweden
Birthplace (normalized)	sweden

1930

King, Washington

Other, age 32

King, Washington · implied b. ~1898 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Carlson
Given Name	Ruth
Relationship to Head	Wife-H
Sex	F
Color / Race	White
Age	32
Marital Status	Married
Birthplace	Sweden
Naturalization Status	Naturalized
Year of Immigration	1914
Age at First Marriage	21
Father's Birthplace	Sweden
Mother's Birthplace	Sweden
Can Read/Write	Yes
Mother Tongue	Swedish
Birth Country	Sweden
Birthplace (normalized)	sweden

1940

King-County, Washington

Spouse, age 42

King-County, Washington · implied b. ~1898 — 5 household members

Surname	Carlson
Given Name	Ruth O. M.
Relationship to Head	wife
Sex	F
Color / Race	White
Age	42
Marital Status	Married
Birthplace	Sweden
1935 Residence (City)	Seattle City
1935 Residence (County)	King
Naturalization Status	Naturalized
Hours Worked	0
Highest Grade	No 8
1935 Residence	Same place
Birth Country	Sweden
Birthplace (normalized)	sweden

Model Tree

Linked across censuses

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

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This person

Anchor record

Ruth Carlson

Spouse · 1940 · age 42 · b. ~1898 · 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

40 people indexed on this census page (nara:1940:m-t0627-04374-00523)

Line	Name	Age	Relation	Occupation	Birthplace
41	Arlo D. Wadman	13	son	—	N. Dakota
42	Helen J. Wadman	11	daughter	—	N. Dakota
43	Marilyn R. Wadman	9	daughter	—	N. Dakota
44	Norman J. Wadman	6	daughter	—	N. Dakota
45	Julia A. Conrad	69	head	—	Wisconsin
46	Muriel G. Pfeiffer	40	daughter	—	Washington
47	Jacqueline D. Pfeiffer	13	granddaughter	—	Washington
48	Keat Smith	53	head	Bookkeeper Manager	Massachusetts
49	Leona L. Smith	55	wife	—	Maine
50	Roger R. Smith	30	son	Bookkeeper	Massachusetts
51	Mary Yapple	50	head	Chorework	Minnesota
52	Nellie Carlisle	60	sister	—	Minnesota
53	Edwin Stamp	48	lodger	Structural Ironworker	Washington
54	Alvin Hannum	46	head	Bookkeeper	Michigan
55	Clara Hannum	46	wife	—	Washington
56	Andrew Hannum	79	head	Landscape Gardening	Norway
57	Janette Hannum	79	wife	—	Norway
58	John E. Anderson	48	head	Truck Dispatcher	Pennsylvania
59	Emma E. Anderson	42	wife	—	Colorado
60	Inna M. Anderson	6	daughter	—	Washington
61	John O. Anderson	4	son	—	Washington
62	Charles E. Anderson	0	son	—	Washington
63	Emma Lindgren	79	mother-in-law	—	Sweden
64	Arthur H. Krahn	47	head	Rough Carpenter	Minnesota
65	Earline M. Krahn	41	wife	—	Nebraska
66	Merle V. Krahn	19	daughter	—	Washington
67	Dorothy M. Krahn	13	daughter	—	Washington
68	Edward A. Krahn	6	son	—	Washington
69	Alfred J. Sholset	25	head	Laborer	Washington
70	Mildred M. Sholset	22	wife	—	Washington
71	Barbara J. Sholset	1	daughter	—	Washington
72	Eric G. Carlson	49	head	Painting & Paperhanging	Sweden
73	Ruth O. M. Carlson THIS PERSON	42	wife	—	Sweden
74	Raymond E. Carlson	19	son	Apprentice Electrician	Washington
75	Betty M. Carlson	12	daughter	—	Washington
76	Arthur Alm	42	lodger	Railroad Brakeman	Sweden
77	George L. Crocoll	40	head	Transfer Truck Driver	Illinois
78	Betty Crocoll	36	wife	—	Michigan
79	Dolores L. Crocoll	16	daughter	—	Washington
80	George L. Jr. Crocoll	1	son	—	Washington

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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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