Mary Mckenzie — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Polk-County, Minnesota

Our Model Tree links this Mary Mckenzie across the 1920, 1930 and 1940 US Censuses in Polk-County, Minnesota (XGBoost, ~Confirmed) — first a spouse (b.~1896), then head of a 5-person household.

Age 44 b. ~1896 Female Spouse Born: Idaho Married

1940 Census Record Details

Census Year	1940
Location	Polk-County, Minnesota
Surname	MCKENZIE
Given Name	MARY HELEN
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	44
Marital Status	Married
Birthplace	Idaho
1935 Residence (City)	Crookston city
1935 Residence (County)	Polk
Additional Details
Industry	0
Class of Worker	Yes
Highest Grade	C 2
1935 Residence	Same House
Birth State	Idaho
Birth Country	United States
Birthplace (normalized)	idaho
Township / Ward	Crookston City
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 Mary	Age	Birth yr
D Mckenzie	Head	—	45	~1895
W Mckenzie	Son	—	21	~1919
Donald Mckenzie	Son	—	18	~1922
M Gartner	Other	—	20	~1920
Mary Mckenzie	Spouse	—	44	~1896

Census Appearances

1920

Polk, Minnesota

Spouse, age 24

Polk, Minnesota · implied b. ~1896 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	McKenzie
Given Name	Mary Helen
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	24
Marital Status	Married
Birthplace	Idaho
Father's Birthplace	England
Mother's Birthplace	Indiana
Occupation	Editor
Industry	Newspaper
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Idaho
Birth Country	United States
Birthplace (normalized)	idaho

1930

Polk, Minnesota

Other, age 34

Polk, Minnesota · implied b. ~1896 — 7 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	McKenzie
Given Name	Maybelle L
Relationship to Head	wife-h
Sex	F
Color / Race	White
Age	34
Marital Status	Married
Birthplace	Idaho
Age at First Marriage	21
Father's Birthplace	England
Mother's Birthplace	Indiana
Can Read/Write	Yes
Birth State	Idaho
Birth Country	United States
Birthplace (normalized)	idaho

1940

Polk-County, Minnesota

Spouse, age 44

Polk-County, Minnesota · implied b. ~1896 — 5 household members

Surname	MCKENZIE
Given Name	MARY HELEN
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	44
Marital Status	Married
Birthplace	Idaho
1935 Residence (City)	Crookston city
1935 Residence (County)	Polk
Industry	0
Class of Worker	Yes
Highest Grade	C 2
1935 Residence	Same House
Birth State	Idaho
Birth Country	United States
Birthplace (normalized)	idaho

Model Tree

Linked across censuses

Our Model Tree links Mary Mckenzie 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 Mckenzie

Spouse · 1940 · age 44 · b. ~1896 · 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 — Polk-County, Minnesota Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01949-00195)

Line	Name	Age	Relation	Occupation	Birthplace
1	Anna Lerum	65	Mother in law	—	Minnesota
2	Joe, G Parson	64	Head	—	Vermont
3	Margaret Parson	64	Wife	—	New Hampshire
4	Alfred Record	67	Head	—	Canada-French
5	Maree, D. Record	52	Wife	—	Canada-French
6	Earl, G. Barness	26	Head	Field Clerk	Minnesota
7	Evelyn, A. Barness	25	Wife	—	Minnesota
8	Danny, G Barness	2	Son	—	Minnesota
9	Raymond Scully	28	Head	Truck Driver	Minnesota
10	Margaret Scully	23	Wife	—	Wisconsin
11	Clifford Hanson	36	Head	Fireman	Minnesota
12	Helen Hanson	27	Wife	—	Minnesota
13	Estella Hanson	9	Daughter	—	Minnesota
14	Patricia Hanson	7	Daughter	—	Minnesota
15	Manerd Hanson	4	Son	—	Minnesota
16	Marlene Hanson	2	Daughter	—	Minnesota
17	Jim Noah	39	Head	Route Salesman	Minnesota
18	Agnes Noah	29	Wife	—	Minnesota
19	Betty Jane Noah	12	Daughter	—	Minnesota
20	James Noah	10	Son	—	Minnesota
21	Douglas Noah	9	Son	—	Minnesota
22	Vincent Noah	8	Son	—	Minnesota
23	Carrol Lou Noah	2	Daughter	—	Minnesota
24	D. A. Mckenzie	45	Head	Publishing Editor	Minnesota
25	Mary Helen Mckenzie THIS PERSON	44	Wife	—	Idaho
26	W. E. Mckenzie	21	Son	Reporter	Minnesota
27	Donald, L Mckenzie	18	Son	Want Ad Man	Minnesota
28	M Gartner	20	Maid	Maid	No. Dakota
29	C. L. Burgett	48	Head	Asst. Manager	No. Dakota
30	Harriet Burgett	48	Wife	—	No. Dakota
31	Margarete Burgett	15	Daughter	—	No. Dakota
32	Claudia, M Burgett	14	Daughter	—	No. Dakota
33	Harriet, J Burgett	10	Daughter	—	Minnesota
34	John, J Flynn	61	Head	Proprietor	Minnesota
35	Genevieve Flynn	59	Wife	—	Iowa
36	R. O. Sather	37	Head	M. D. Internist	Canada-Eng
37	Inez Sather	30	Wife	—	Minnesota
38	Alan, R Sather	5	Son	—	Minnesota
39	Karen, M Sather	2	Daughter	—	Minnesota
40	Inez Paulson	23	Maid	Maid	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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