John Mcnamara — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Benton-County, Minnesota

Our Model Tree links this John Mcnamara across the 1920, 1930 and 1940 US Censuses in Benton-County, Minnesota (XGBoost, ~Confirmed) — first a head (b.~1880), then head of a 5-person household.

Age 60 b. ~1880 Male Head Born: Wisconsin Married

1940 Census Record Details

Census Year	1940
Location	Benton-County, Minnesota
Surname	McNamara
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	60
Marital Status	Married
Birthplace	Wisconsin
1935 Residence (City)	Ronneby Village
1935 Residence (County)	Benton
Additional Details
Occupation	Farmer
Industry	Farm
Class of Worker	OA
Hours Worked	55
Highest Grade	No 7
1935 Residence	Same place
Birth State	Wisconsin
Birth Country	United States
Birthplace (normalized)	wisconsin
Occupation	Farmer
Township / Ward	Ronneby Village
Est. Birth Year	~1880

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
Betty Mcnamara	Daughter	—	23	~1917
Ellen Mcnamara	Daughter	—	18	~1922
John Mcnamara	Head	—	60	~1880
Merrit Mcnamara	Son	—	24	~1916
Mabel Mcnamara	Spouse	—	54	~1886

Census Appearances

1920

Benton, Minnesota

Head, age 40

Benton, Minnesota · implied b. ~1880 — 7 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	McNamara
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	40
Marital Status	Married
Birthplace	Wisconsin
Father's Birthplace	Ohio
Mother's Birthplace	Wisconsin
Occupation	Farmer
Industry	Farm
Class of Worker	OA
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Home Owned/Rented	O
Home Free/Mortgaged	M
Birth State	Wisconsin
Birth Country	United States
Birthplace (normalized)	wisconsin

1930

Benton, Minnesota

Head, age 50

Benton, Minnesota · implied b. ~1880 — 6 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	McNamara
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	50
Marital Status	Married
Birthplace	Wisconsin
Age at First Marriage	26
Father's Birthplace	Ohio
Mother's Birthplace	Wisconsin
Occupation	Farmer
Industry	Farming
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	R
Birth State	Wisconsin
Birth Country	United States
Birthplace (normalized)	wisconsin

1940

Benton-County, Minnesota

Head, age 60

Benton-County, Minnesota · implied b. ~1880 — 5 household members

Surname	McNamara
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	60
Marital Status	Married
Birthplace	Wisconsin
1935 Residence (City)	Ronneby Village
1935 Residence (County)	Benton
Occupation	Farmer
Industry	Farm
Class of Worker	OA
Hours Worked	55
Highest Grade	No 7
1935 Residence	Same place
Birth State	Wisconsin
Birth Country	United States
Birthplace (normalized)	wisconsin

Model Tree

Linked across censuses

Our Model Tree links John Mcnamara 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 Mcnamara

Head · 1940 · age 60 · b. ~1880 · Minnesota

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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 — Benton-County, Minnesota Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01907-00262)

Line	Name	Age	Relation	Occupation	Birthplace
41	Harold Davis	17	Son	Farm Laborer	Minnesota
42	Clotilda Ferschweiler	60	Head	—	Minnesota
43	Claudius Ferschweiler	34	Son	Section Hand	Minnesota
44	Wilfred Ferschweiler	30	Son	Bartender	Minnesota
45	Evelyn Ferschweiler	28	Daughter	Waitress	Minnesota
46	Kenneth Ferschweiler	18	Son	—	Minnesota
47	Robert Ferschweiler	14	Son	—	Minnesota
48	David Forschen	30	Head	Carpenter	Minnesota
49	Alta Forschen	27	Wife	—	South Dakota
50	Bonnie Lee Forschen	8	Daughter	—	Minnesota
51	James Dalton Forschen	2	Son	—	Minnesota
52	Elmer G. Baker	29	Head	Truck Driver	Minnesota
53	Gladys Baker	24	Wife	—	Minnesota
54	Miriam Butler	21	Lodger	School Teacher	Minnesota
55	Walter Stotz	23	Head	Truck Driver	Minnesota
56	Evelyn Stotz	19	Wife	—	Minnesota
57	David W. Stotz	0	Son	—	Minnesota
58	Clara Adkins	67	Head	Proprietor	Wisconsin
59	Virgil Adkins	34	Son	Proprietor	Wisconsin
60	Gladys Adkins	43	Daughter	—	Wisconsin
61	Joseph Mcclintic	51	Head	Common Laborer	South Dakota
62	Mary Mcclintic	47	Wife	—	South Dakota
63	Forrest Mcclintic	15	Son	—	South Dakota
64	Dora Forschen	24	Daughter	—	South Dakota
65	Jack Forschen	2	Grandson	—	Minnesota
66	Russell H. Underdahl	42	Head	Salesman-Monument	Minnesota
67	Clate Underdahl	45	Wife	—	Minnesota
68	Russell H. Underdahl	15	Son	—	Minnesota
69	Colleen Underdahl	13	Daughter	—	Minnesota
70	Beth Underdahl	11	Daughter	—	Minnesota
71	June Underdahl	9	Daughter	—	Minnesota
72	Carol Lee Underdahl	8	Daughter	—	Minnesota
73	John Mcnamara THIS PERSON	60	Head	Farmer	Wisconsin
74	Mabel Mcnamara	54	Wife	—	South Dakota
75	Merrit Mcnamara	24	Son	Truck Driver	Minnesota
76	Betty Mcnamara	23	Daughter	—	Minnesota
77	Ellen B. Mcnamara	18	Daughter	Librarian	Minnesota
78	William Yarlott	44	Head	Clergyman	England
79	Alice Yarlott	35	Wife	Teacher	England
80	William J. Yarlott	13	Son	—	Canada

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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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