Carl Schmidt — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · King-County, Washington

Our Model Tree links this Carl Schmidt across the 1920, 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed) — first a head (b.~1883), then head of a 6-person household.

Age 57 b. ~1883 Male Head Born: Iowa Married

1940 Census Record Details

Census Year	1940
Location	King-County, Washington
Surname	Schmidt
Given Name	Carl O.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	57
Marital Status	Married
Birthplace	Iowa
1935 Residence (City)	Seattle City
1935 Residence (County)	King
Additional Details
Occupation	Machinist
Industry	Lake Union Dry Dock
Class of Worker	PW
Hours Worked	40
Income (1939)	2270
Highest Grade	No 7
1935 Residence	Same place
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa
Occupation	Machinist
Township / Ward	Seattle City
Est. Birth Year	~1883

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.

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

Name	Relation to head	Relative to Carl	Age	Birth yr
Carl Schmidt	Head	—	57	~1883
Judy Harris	Daughter	—	4	~1936
Dorothy Harris	Daughter	—	27	~1913
Virginia Schmidt	Daughter	—	18	~1922
Alma Schmidt	Spouse	—	54	~1886
Fred Schmidt	Son	—	28	~1912

Census Appearances

1920

King, Washington

Head, age 36

King, Washington · implied b. ~1884 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Schmidt
Given Name	Carl
Relationship to Head	Head
Sex	M
Color / Race	White
Age	36
Marital Status	Married
Birthplace	Iowa
Father's Birthplace	Germany
Mother's Birthplace	Germany
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Home Owned/Rented	O
Home Free/Mortgaged	M
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1930

King, Washington

Head, age 47

King, Washington · implied b. ~1883 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Schmidt
Given Name	Carl H.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	47
Marital Status	Married
Birthplace	Iowa
Age at First Marriage	24
Father's Birthplace	Germany
Mother's Birthplace	Germany
Occupation	Machinist
Industry	Dry Dock
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	O
Home Value / Rent	3500
Radio Set	R
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1940

King-County, Washington

Head, age 57

King-County, Washington · implied b. ~1883 — 6 household members

Surname	Schmidt
Given Name	Carl O.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	57
Marital Status	Married
Birthplace	Iowa
1935 Residence (City)	Seattle City
1935 Residence (County)	King
Occupation	Machinist
Industry	Lake Union Dry Dock
Class of Worker	PW
Hours Worked	40
Income (1939)	2270
Highest Grade	No 7
1935 Residence	Same place
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

Model Tree

Linked across censuses

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

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This person

Anchor record

Carl Schmidt

Head · 1940 · age 57 · b. ~1883 · 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-t0627-04374-00699)

Line	Name	Age	Relation	Occupation	Birthplace
1	John W. Dawe	41	Head	Telephone Repairman	England
2	Margaret Dawe	37	Wife	—	Washington
3	Mary Lou E. Dawe	19	Daughter	Cereal Packer	Washington
4	Jean M. Dawe	17	Daughter	—	California
5	R. Allan	23	Head	Millwright	Norway
6	Clara Allan	44	Wife	—	Norway
7	Margaret Allan	19	Daughter	—	Washington
8	Laura Allan	14	Daughter	—	South Dakota
9	Carl O. Schmidt THIS PERSON	57	Head	Machinist	Iowa
10	Alma Schmidt	54	Wife	—	Wisconsin
11	Fred Schmidt	28	Son	Machinist	Washington
12	Virginia Schmidt	18	Daughter	Hat Maker	Washington
13	Dorothy Harris	27	Daughter	Typist	Washington
14	Judy Harris	4	Daughter	—	Washington
15	Willis Johnson	36	Head	Barber	Iowa
16	Ruth Johnson	25	Wife	—	Washington
17	John Mattson	49	Head	Laborer	Finland
18	Signe Larson	31	Sister	Bread Wrapper	Sweden
19	Margaret Larson	11	Niece	—	Washington
20	Betty C. Harrison	36	Head	Long Distance Operator	Norway
21	Betty Lou Harrison	13	Daughter	—	Washington
22	James E. Harrison	10	Son	—	Washington
23	Patricia Lee Harrison	6	Daughter	—	Washington
24	Extra Line	None	—	—	—
25	David C. Pfeiffer	46	Head	Telephone Cable Splicer	North Dakota
26	Orma Pfeiffer	46	Wife	—	Minnesota
27	David H. Pfeiffer	19	Son	—	Minnesota
28	Henry Schade	80	Father-in-law	Manager Furniture Factory	Germany
29	Lawrence R. Davis	52	Head	City Fireman	Missouri
30	Louise Davis	51	Wife	—	Minnesota
31	Jasper Hove	29	Head	20	North Dakota
32	Thela Hove	22	Wife	—	North Dakota
33	Vernal Hove	1	Son	—	Washington
34	Wayne Mellroth	24	Boarder	Fisherman	Nebraska
35	James W. Tregear	45	Head	Clerk	California
36	Laura Tregear	47	Wife	—	Washington
37	Irene Carlson	54	Head	Janitress	Finland
38	Ellen Carlson	26	Daughter	—	Washington
39	John B. Erickson	53	Head	Jeweler	Finland
40	Marie Erickson	53	Wife	—	Finland

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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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