Martha Johnson — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Delta-County, Michigan

Our Model Tree links this Martha Johnson across the 1920, 1930 and 1940 US Censuses in Delta-County, Michigan (XGBoost, ~Confirmed) — first a spouse (b.~1892), then head of a 3-person household.

Age 48 b. ~1892 Female Spouse Born: Sweden Married

1940 Census Record Details

Census Year	1940
Location	Delta-County, Michigan
Surname	Johnson
Given Name	Martha
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	48
Marital Status	Married
Birthplace	Sweden
1935 Residence (County)	Delta
Naturalization Status	Naturalized
Additional Details
Occupation	Local Post Office
Industry	GW
Class of Worker	38
Highest Grade	No 8
1935 Residence	40
Birth Country	Sweden
Birthplace (normalized)	sweden
Occupation	Local Post Office
Township / Ward	Maple Ridge Township
Est. Birth Year	~1892

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 Martha	Age	Birth yr
Frank Johnson	Head	—	68	~1872
Gordon Johnson	Son	—	16	~1924
Martha Johnson	Spouse	—	48	~1892

Census Appearances

1920

Delta, Michigan

Spouse, age 29

Delta, Michigan · implied b. ~1891 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Johnson
Given Name	Martha
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	29
Marital Status	Married
Birthplace	Sweden
Year of Immigration	1905
Naturalization Status	Naturalized
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

Delta, Michigan

Spouse, age 39

Delta, Michigan · implied b. ~1891 — 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	39
Marital Status	Married
Birthplace	Sweden
Naturalization Status	Naturalized
Year of Immigration	1904
Age at First Marriage	17
Father's Birthplace	Sweden
Mother's Birthplace	Sweden
Can Read/Write	Yes
Mother Tongue	Swedish
Birth Country	Sweden
Birthplace (normalized)	sweden

1940

Delta-County, Michigan

Spouse, age 48

Delta-County, Michigan · implied b. ~1892 — 3 household members

Surname	Johnson
Given Name	Martha
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	48
Marital Status	Married
Birthplace	Sweden
1935 Residence (County)	Delta
Naturalization Status	Naturalized
Occupation	Local Post Office
Industry	GW
Class of Worker	38
Highest Grade	No 8
1935 Residence	40
Birth Country	Sweden
Birthplace (normalized)	sweden

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.

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This person

Anchor record

Martha Johnson

Spouse · 1940 · age 48 · b. ~1892 · Michigan

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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 — Delta-County, Michigan Open full size

Page Contents

39 people indexed on this census page (nara:1940:m-t0627-01745-00822)

Line	Name	Age	Relation	Occupation	Birthplace
1	David Haiju	9	Son	—	Michigan
2	Ernesto Westerling	36	Head	Oil Company	Michigan
3	Anna Westerling	28	Wife	Hospital	Michigan
4	Evelyn Westerling	15	Niece	—	Michigan
5	Enid Nygaard	62	Lodger	Own Farm	Norway
6	Anna Laviska	55	Head	—	Finland
7	Dean Prem	26	Head	Piecework	Michigan
8	Mildred Prem	21	Wife	—	Michigan
9	Albert Bridges	60	Lodger	Ranch	Michigan
10	Joseph Severson	40	Head	Log Laborer	Minnesota
11	Mary Severson	24	Wife	—	Michigan
12	May Severson	4	Daughter	—	Michigan
13	Lowell Severson	2	Son	—	Michigan
14	Henry Cominess	70	Head	Logging Camp	Michigan
15	John Hendrickson	56	Partner	Logging Camp	Finland
16	James Worden	60	Head	Pieceworker	Michigan
17	Isaac Pepir	67	Partner	Lumber Camp	Michigan
18	George Bauer	43	Head	Lumber Camp	Finland
19	John Lacombe	46	Head	Lumber Camp	Massachusetts
20	Leslie Lacombe	21	Son	Lumber Camp	Michigan
21	John Anderson	64	Head	Lumber Camp	Finland
22	Gust Anderson	43	Head	Pieceworker	Sweden
23	Robert Mullian	43	Head	Lumber Camp	Wisconsin
24	Gertrude Mullian	32	Wife	Housework	Michigan
25	Adolphus Minon	63	Head	Logging Camp	Canada
26	Caroline Minon	60	Wife	—	Michigan
27	John Minon	28	Son	Logging Camp	Virginia
28	William Minon	14	Son	—	Michigan
29	Crianas Malloy	76	Head	U.S. Post Office	Michigan
30	Mina Metz	84	Lodger	—	Massachusetts
31	Carl Harlow	53	Lodger	R.R. Roadwork	Vermont
32	Thomas Kurty	46	Head	Tavern	Ohio
33	Helen Kurty	41	Wife	Tavern	Michigan
34	Hester Kurty	18	Daughter	—	Michigan
35	Olive Thompson	20	Servant	Housework	Michigan
36	James Mayo	52	Lodger	Piecework	Michigan
37	Frank Johnson	68	Head	—	Sweden
38	Martha Johnson THIS PERSON	48	Wife	Local Post Office	Sweden
39	Gordon Johnson	16	Son	—	Michigan

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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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