Mary Mcnamara — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Dakota-County, Minnesota

Our Model Tree links this Mary Mcnamara across the 1920, 1930 and 1940 US Censuses in Dakota-County, Minnesota (XGBoost, ~Confirmed) — first a spouse (b.~1880), then head of a 4-person household.

Age 60 b. ~1880 Female Spouse Born: Minnesota Married

1940 Census Record Details

Census Year	1940
Location	Dakota-County, Minnesota
Surname	McNamara
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	60
Marital Status	Married
Birthplace	Minnesota
1935 Residence (City)	Ravenna Twp.
1935 Residence (County)	Dakota
Additional Details
Occupation	House Keeper
Industry	Farm
Class of Worker	NP
Hours Worked	40
Income (1939)	0
Highest Grade	No 8
1935 Residence	Same place
Birth State	Minnesota
Birth Country	United States
Birthplace (normalized)	minnesota
Occupation	Housekeeper
Township / Ward	Ravenna Twp
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.

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

Name	Relation to head	Relative to Mary	Age	Birth yr
Dorothy Mcnamara	Daughter	—	23	~1917
Martin Mcnamara	Head	—	68	~1872
Francis Mcnamara	Son	—	21	~1919
Mary Mcnamara	Spouse	—	60	~1880

Census Appearances

1920

Dakota, Minnesota

Spouse, age 38

Dakota, Minnesota · implied b. ~1882 — 9 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	McNamara
Given Name	Mary
Relationship to Head	wife
Sex	F
Color / Race	White
Age	38
Marital Status	Married
Birthplace	Minnesota
Father's Birthplace	Minnesota
Mother's Birthplace	Minnesota
Occupation	none
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Minnesota
Birth Country	United States
Birthplace (normalized)	minnesota

1930

Dakota, Minnesota

Spouse, age 50

Dakota, Minnesota · implied b. ~1880 — 8 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	McNamara
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	50
Marital Status	Married
Birthplace	Minnesota
Age at First Marriage	24
Father's Birthplace	Minnesota
Mother's Birthplace	Minnesota
Occupation	Farmer
Industry	General farm
Class of Worker	O
Can Read/Write	Yes
Radio Set	R
Veteran	No
Birth State	Minnesota
Birth Country	United States
Birthplace (normalized)	minnesota

1940

Dakota-County, Minnesota

Spouse, age 60

Dakota-County, Minnesota · implied b. ~1880 — 4 household members

Surname	McNamara
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	60
Marital Status	Married
Birthplace	Minnesota
1935 Residence (City)	Ravenna Twp.
1935 Residence (County)	Dakota
Occupation	House Keeper
Industry	Farm
Class of Worker	NP
Hours Worked	40
Income (1939)	0
Highest Grade	No 8
1935 Residence	Same place
Birth State	Minnesota
Birth Country	United States
Birthplace (normalized)	minnesota

Model Tree

Linked across censuses

Our Model Tree links Mary 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

Mary Mcnamara

Spouse · 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 — Dakota-County, Minnesota Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01917-00597)

Line	Name	Age	Relation	Occupation	Birthplace
1	Frank A. Swanson	55	Head	Farmer	Iowa
2	Anna M. Swanson	54	Wife	House Keeper	Iowa
3	Bernice V. Swanson	20	Daughter	House Keeper	Minnesota
4	Deloris A. Swanson	17	Daughter	—	Minnesota
5	Mrs. Chris Marie Swanson	10	Daughter	—	Minnesota
6	Alfred W. Dunkel	1	Grandson	—	Minnesota
7	Ambrose A. Reuter	33	Head	Farmer	Minnesota
8	Martha Reuter	29	Wife	House Keeper	Minnesota
9	John F. Reuter	69	Head	—	Minnesota
10	Anna Reuter	54	Wife	—	Minnesota
11	Josephine Reuter	31	Daughter	—	Minnesota
12	Veronica Reuter	24	Daughter	—	Minnesota
13	Eva Marie Reuter	21	Daughter	—	Minnesota
14	William J. Reuter	18	Son	—	Minnesota
15	John J. Mcnamara	75	Head	Farmer	Minnesota
16	Hannie E. Mcnamara	65	Wife	House Keeper	Minnesota
17	Eleanor Mcnamara	27	Daughter	—	Minnesota
18	George Mcnamara	40	Son	—	Minnesota
19	Martin Mcnamara	68	Head	Farmer	Minnesota
20	Mary Mcnamara THIS PERSON	60	Wife	House Keeper	Minnesota
21	Dorothy Mcnamara	23	Daughter	Factory Work	Minnesota
22	Francis Mcnamara	21	Son	Laborer	Minnesota
23	Henry J. Langenfeld	28	Head	Farmer	Minnesota
24	Eleanor Langenfeld	29	Wife	House Keeper	Minnesota
25	Thomas Langenfeld	5	Son	—	Minnesota
26	Ralph Langenfeld	4	Son	—	Minnesota
27	Alvira Langenfeld	3	Daughter	—	Minnesota
28	Janet Langenfeld	2	Daughter	—	Minnesota
29	Louise Patricia Langenfeld	0	Daughter	—	Minnesota
30	Pat Hart	56	Head	Farmer	Minnesota
31	Margaret Hart	59	Wife	House Keeper	Minnesota
32	Vincent John Hart	63	Brother	Laborer	Minnesota
33	John E. Anderson	73	Boarder	Old Age	Sweden
34	Wesley C. Pittenger	70	Boarder	Old Age	Wisconsin
35	Henry Roswell	39	Boarder	—	Nebraska
36	Frank A. Carlson	54	Head	Stationary Engineer	Minnesota
37	Marie Carlson	38	Wife	—	Minnesota
38	Maire Carlson	17	Daughter	—	Minnesota
39	Frances Carlson	16	Daughter	—	Minnesota
40	Leonard Carlson	15	Son	—	Minnesota

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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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