Martha Johnson — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Clayton-County, Iowa

Our Model Tree links this Martha Johnson across the 1920, 1930 and 1940 US Censuses in Clayton-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1882), then head of a 5-person household.

Age 58 b. ~1882 Female Spouse Born: Norway Married

1940 Census Record Details

Census Year	1940
Location	Clayton-County, Iowa
Surname	Johnson
Given Name	Martha
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	58
Marital Status	Married
Birthplace	Norway
1935 Residence (City)	Marion Twp
1935 Residence (County)	Clayton
Naturalization Status	Naturalized
Additional Details
Occupation	Housekeeper
Industry	Farm
Class of Worker	NP
Hours Worked	60
Income (1939)	0
Highest Grade	No 8
1935 Residence	Same place
Birth Country	Norway
Birthplace (normalized)	norway
Occupation	Housekeeper
Township / Ward	Marion Twp
Est. Birth Year	~1882

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 Martha	Age	Birth yr
Minerva Johnson	Daughter	—	17	~1923
Carl Johnson	Head	—	73	~1867
Joseph Johnson	Son	—	26	~1914
Martin Johnson	Son	—	37	~1903
Martha Johnson	Spouse	—	58	~1882

Census Appearances

1920

Clayton, Iowa

Spouse, age 38

Clayton, Iowa · implied b. ~1882 — 8 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Johnson
Given Name	Martha
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	38
Marital Status	Married
Birthplace	Norway
Year of Immigration	1901
Naturalization Status	Naturalized
Father's Birthplace	Norway
Mother's Birthplace	Norway
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Norwegian
Birth Country	Norway
Birthplace (normalized)	norway

1930

Clayton, Iowa

Spouse, age 47

Clayton, Iowa · implied b. ~1883 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Johnson
Given Name	Martha
Relationship to Head	wife
Sex	F
Color / Race	White
Age	47
Marital Status	Married
Birthplace	Norway
Year of Immigration	1905
Age at First Marriage	19
Father's Birthplace	Norway
Mother's Birthplace	Norway
Can Read/Write	No
Mother Tongue	Norwegian
Birth Country	Norway
Birthplace (normalized)	norway

1940

Clayton-County, Iowa

Spouse, age 58

Clayton-County, Iowa · implied b. ~1882 — 5 household members

Surname	Johnson
Given Name	Martha
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	58
Marital Status	Married
Birthplace	Norway
1935 Residence (City)	Marion Twp
1935 Residence (County)	Clayton
Naturalization Status	Naturalized
Occupation	Housekeeper
Industry	Farm
Class of Worker	NP
Hours Worked	60
Income (1939)	0
Highest Grade	No 8
1935 Residence	Same place
Birth Country	Norway
Birthplace (normalized)	norway

Model Tree

Linked across censuses

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

Show:

This person

Anchor record

Martha Johnson

Spouse · 1940 · age 58 · b. ~1882 · Iowa

★ You are viewing this record

Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1940 US Federal Census — Clayton-County, Iowa Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01149-00469)

Line	Name	Age	Relation	Occupation	Birthplace
1	Theodore Lothegard	65	Head	Farmer	Iowa
2	Julia Lothegard	58	Wife	Housekeeper	Iowa
3	Vinetta A. Lothegard	19	Daughter	Househelp	Iowa
4	Owen S. Lothegard	18	Son	Farmer	Iowa
5	Marius Amundson	22	Hired hand	Farm Hand	Iowa
6	Cornelius Peierson	49	Head	Farmer	Iowa
7	Martha Peierson	40	Wife	Housekeeper	Iowa
8	Lloyd E. Peierson	19	Son	Farm Hand	Iowa
9	Morris C. Peierson	13	Son	Farm Hand	Iowa
10	Joseph B. Peierson	11	Son	Farm Hand	Iowa
11	Kenneth J. Hjorta	35	Head	Road Worker	Iowa
12	Selma R. Hjorta	38	Wife	Housekeeper	Iowa
13	Kenneth Theo. Hjorta	3	Son	—	Iowa
14	Thomas J. Nelson	66	Head	Farmer	Iowa
15	Mary Nelson	66	Wife	Housekeeper	Iowa
16	Elmer J. Nelson	36	Son	Farmer	Iowa
17	Johnnie J. Nelson	26	Son	Farmer	Iowa
18	Selma R. Smith	39	Daughter	House Help	Iowa
19	Winifred G. Smith	17	Granddaughter	Scholar	Iowa
20	Thelma M. Smith	15	Granddaughter	Scholar	Iowa
21	Carl Johnson	73	Head	Retired	Sweden
22	Martha Johnson THIS PERSON	58	Wife	Housekeeper	Norway
23	Martin Johnson	37	Son	Farmer	Iowa
24	Minerva J. Johnson	17	Daughter	House Help	Iowa
25	Joseph Johnson	26	Son	Farm Labor	Iowa
26	Melvin Lothegard	31	Head	Farmer	Iowa
27	Rosie Lothegard	31	Wife	Housekeeper	Iowa
28	Lafayette Mcann	77	Head	—	Iowa
29	Sophia Lothegard	34	Daughter	Housekeeper	Iowa
30	Hildor Balder	28	Head	Farmer	Iowa
31	Adelphia Balder	23	Wife	Housekeeper	Iowa
32	Hans J. Dilden	76	Head	Retired	Iowa
33	Helga M. Dilden	49	Wife	Housekeeper	Norway
34	Lillian K. Dilden	27	Son	Farmer	Iowa
35	Josephine M. Dilden	24	Daughter	Househelp	Iowa
36	Martin J. Dilden	64	Brother	Farmer	Iowa
37	James G. Balder	73	Head	Farmer	Iowa
38	Lizzie S. Balder	76	Sister	Housekeeper	Iowa
39	P. Lothegard	84	Sister	—	Iowa
40	Kenneth Peierson	21	Hired man	Farm Labor	Iowa

Search for Martha Johnson

All Martha Johnson Census Records Discover Johnson Family Tree

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)

Report inaccurate data