Mary Carlson — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Worcester-County, Massachusetts

Our Model Tree links this Mary Carlson across the 1920, 1930 and 1940 US Censuses in Worcester-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1875), then head of a 4-person household.

Age 65 b. ~1875 Female Spouse Born: Finland Married

1940 Census Record Details

Census Year	1940
Location	Worcester-County, Massachusetts
Surname	Carlson
Given Name	Mary R.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	65
Marital Status	Married
Birthplace	Finland
1935 Residence (City)	Gardner
1935 Residence (County)	Worcester
Naturalization Status	Alien
Additional Details
Highest Grade	0
1935 Residence	Same place
Birth Country	Finland
Birthplace (normalized)	finland
Township / Ward	Gardner
Est. Birth Year	~1875

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.

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

Name	Relation to head	Relative to Mary	Age	Birth yr
Mary Carlson	Daughter	—	13	~1927
Sigrid Carlson	Daughter	—	32	~1908
E Carlson	Head	—	63	~1877
Mary Carlson	Spouse	—	65	~1875

Census Appearances

1920

Worcester, Massachusetts

Spouse, age 44

Worcester, Massachusetts · implied b. ~1876 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Carlson
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	44
Marital Status	Married
Birthplace	Finland
Year of Immigration	1901
Naturalization Status	Alien
Father's Birthplace	Finland
Mother's Birthplace	Finland
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Finnish
Birth Country	Finland
Birthplace (normalized)	finland

1930

Worcester, Massachusetts

Other, age 55

Worcester, Massachusetts · implied b. ~1875 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Carlson
Given Name	Mary A
Relationship to Head	Wife-H
Sex	F
Color / Race	White
Age	55
Marital Status	Married
Birthplace	Finland
Naturalization Status	First papers filed
Year of Immigration	1903
Age at First Marriage	27
Father's Birthplace	Finland
Mother's Birthplace	Finland
Can Read/Write	Yes
Mother Tongue	Finnish
Birth Country	Finland
Birthplace (normalized)	finland

1940

Worcester-County, Massachusetts

Spouse, age 65

Worcester-County, Massachusetts · implied b. ~1875 — 4 household members

Surname	Carlson
Given Name	Mary R.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	65
Marital Status	Married
Birthplace	Finland
1935 Residence (City)	Gardner
1935 Residence (County)	Worcester
Naturalization Status	Alien
Highest Grade	0
1935 Residence	Same place
Birth Country	Finland
Birthplace (normalized)	finland

Model Tree

Linked across censuses

Our Model Tree links Mary 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

Mary Carlson

Spouse · 1940 · age 65 · b. ~1875 · 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-t0627-01649-00554)

Line	Name	Age	Relation	Occupation	Birthplace
41	Isadore Lupaczyk	21	Son	Machinist	Mass.
42	Joseph J. Lupaczyk	11	Son	—	Mass.
43	Edward Pelletier	30	Head	Moulder	Mass.
44	Bertha Pelletier	25	Wife	—	Mass.
45	Barbara A. Pelletier	2	Daughter	—	Mass.
46	Edith S. Ryan	50	Head	Assembler	New Hampshire
47	Eunice I. Andruskiewicz	26	Daughter	—	Mass.
48	Richard Andruskiewicz	6	Grandson	—	Mass.
49	Clarence H. Webber	70	Head	—	Mass.
50	Nellie E. Webber	67	Wife	—	New York
51	Donald T. Webber	33	Son	Stock Worker	Mass.
52	E. Robert Carlson	63	Head	Riveter	Finland
53	Mary R. Carlson THIS PERSON	65	Wife	—	Finland
54	Sigrid M. Carlson	32	Daughter	Wrapper	Mass.
55	Mary E. Carlson	13	Daughter	—	Mass.
56	John G. Lindahl	71	Head	Foreman	Sweden
57	Ida J. Lindahl	65	Wife	—	Sweden
58	Levin J. Lindahl	41	Son	Car Mechanic	Maine
59	Charles Gereckbronner	61	Head	Painter	New Jersey
60	Elizabeth Gereckbronner	60	Wife	—	New York
61	Ernest J. Keane	21	Head	Teller	Mass.
62	Minna E. Keane	20	Wife	—	Mass.
63	John J. Kulish	65	Head	—	Lithuania
64	Victoria Kulish	64	Wife	—	Lithuania
65	Charlie Kulish	36	Son	Chair Maker	Mass.
66	William J. Kulish	27	Son	—	Mass.
67	Albert G. Zoldak	61	Head	Finisher	Poland
68	Mary Zoldak	56	Wife	—	Poland
69	Edward Zoldak	22	Son	Shipper	Mass.
70	Francis Zoldak	17	Son	Shifter	Mass.
71	Emma A. Hammar	76	Head	—	Sweden
72	Lillian Stasikelis	39	Head	—	Poland
73	George Stasikelis	15	Son	—	Mass.
74	Barbara Stasikelis	6	Daughter	—	Mass.
75	Caroline Stasikelis	2	Daughter	—	Mass.
76	Anthony Prika	52	Head	Shipping Clerk	Lithuania
77	Vincenta V. Prika	46	Wife	Packing Chairs	Lithuania
78	Anna M. Prika	25	Daughter	Secretary	Mass.
79	Matijus Jankawicz	56	Head	Proprietor	Lithuania
80	Juline Jankawicz	27	Wife	—	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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