John Carlson — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Worcester-County, Massachusetts

Our Model Tree links this John Carlson across the 1920, 1930 and 1940 US Censuses in Worcester-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1896), then head of a 5-person household.

Age 44 b. ~1896 Male Head Born: Finland Married

1940 Census Record Details

Census Year	1940
Location	Worcester-County, Massachusetts
Surname	Carlson
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	44
Marital Status	Married
Birthplace	Finland
1935 Residence (City)	Holden
1935 Residence (County)	Worcester
Naturalization Status	Naturalized
Additional Details
Occupation	Shaver
Industry	Grinding Co
Class of Worker	PW
Hours Worked	40
Income (1939)	1520
Highest Grade	G-0
1935 Residence	Same House
Birth Country	Finland
Birthplace (normalized)	finland
Occupation	Shaver
Township / Ward	Holden
Est. Birth Year	~1896

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 John	Age	Birth yr
Emily Carlson	Daughter	—	17	~1923
John Carlson	Head	—	44	~1896
Warren Carlson	Son	—	15	~1925
John Carlson	Son	—	20	~1920
Dagmar Carlson	Spouse	—	45	~1895

Census Appearances

1920

Worcester, Massachusetts

Head, age 25

Worcester, Massachusetts · implied b. ~1895 — 2 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Carlson
Given Name	John W.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	25
Marital Status	Married
Birthplace	Finland
Year of Immigration	1914
Naturalization Status	First papers filed
Father's Birthplace	Finland
Mother's Birthplace	Finland
Occupation	Shaver
Industry	Emery Works
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Swedish
Home Owned/Rented	R
Birth Country	Finland
Birthplace (normalized)	finland

1930

Worcester, Massachusetts

Head, age 35

Worcester, Massachusetts · implied b. ~1895

● Primary link · ~Confirmed · 1 source

XGBoost

Surname	Carlson
Given Name	John W
Relationship to Head	Head
Sex	M
Color / Race	White
Age	35
Marital Status	Married
Birthplace	Finland
Naturalization Status	Alien
Year of Immigration	1914
Age at First Marriage	24
Father's Birthplace	Finland
Mother's Birthplace	Finland
Occupation	Laborer
Industry	Town
Class of Worker	W
Can Read/Write	Yes
Mother Tongue	Finnish
Home Owned/Rented	O
Radio Set	R
Veteran	No
Birth Country	Finland
Birthplace (normalized)	finland

1940

Worcester-County, Massachusetts

Head, age 44

Worcester-County, Massachusetts · implied b. ~1896 — 5 household members

Surname	Carlson
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	44
Marital Status	Married
Birthplace	Finland
1935 Residence (City)	Holden
1935 Residence (County)	Worcester
Naturalization Status	Naturalized
Occupation	Shaver
Industry	Grinding Co
Class of Worker	PW
Hours Worked	40
Income (1939)	1520
Highest Grade	G-0
1935 Residence	Same House
Birth Country	Finland
Birthplace (normalized)	finland

Model Tree

Linked across censuses

Our Model Tree links John 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

John Carlson

Head · 1940 · age 44 · b. ~1896 · Massachusetts

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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 — Worcester-County, Massachusetts Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01650-00361)

Line	Name	Age	Relation	Occupation	Birthplace
41	Lillian Burnham	55	Head	—	N.Y.
42	Cora Burnham	33	Daughter	—	Mass.
43	Willard Burnham	11	Son	—	Mass.
44	Wendell Phillips	23	Head	Machinist	Mass.
45	Elizabeth Phillips	23	Wife	—	Mass.
46	Thomas Lemelin	43	Head	—	Mass.
47	Alice Lemelin	56	Wife	—	Mass.
48	David Lemelin	15	Son	—	Mass.
49	Beverly Lemelin	11	Daughter	—	Mass.
50	Elizabeth Mc Laughlin	45	Head	—	Mass.
51	Margaret Hallikainen	32	Head	Operator	Mass.
52	Timothy Hallikainen	66	Brother	Helper	Mass.
53	Fred Murray	44	Head	Mechanic	N.Y.
54	Stella A. Murray	46	Wife	—	Mass.
55	Frederick Murray	15	Son	—	Mass.
56	Theresa Murray	13	Daughter	—	Mass.
57	Stella Doris Murray	11	Daughter	—	Mass.
58	Albert Murray	4	Son	—	Mass.
59	Delphus Murray	3	Son	—	Mass.
60	Bernard Hanson	51	Head	Carder	Finland
61	Esther Hanson	50	Wife	—	Finland
62	Gilbert Hanson	20	Son	Tender	Mass.
63	Shirley Hanson	12	Daughter	—	Mass.
64	Johanna Carlson	70	Lodger	—	Finland
65	John Carlson THIS PERSON	44	Head	Shaver	Finland
66	Dagmar Carlson	45	Wife	—	Mass.
67	John Jr. Carlson	20	Son	Helper	Mass.
68	Emily Carlson	17	Daughter	—	Mass.
69	Warren Carlson	15	Son	—	Mass.
70	Marcel Oldakowski	52	Head	Operator	Poland
71	Josephine Oldakowski	45	Wife	—	Poland
72	Sigie Oldakowski	27	Son	Forge	Mass.
73	Charles Oldakowski	19	Son	—	N.J.
74	John Oldakowski	16	Son	—	N.J.
75	Henry Oldakowski	13	Son	—	Mass.
76	Stanley Oldakowski	7	Son	—	Mass.
77	Edward Oldakowski	3	Son	—	Mass.
78	Otto H. Barrett	47	Head	Painter	Mass.
79	Emma V. Barrett	44	Wife	Operator	Canada
80	Raymond Barrett	12	Son	Painter	Mass.

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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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