Mary Schmidt — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Pottawattamie-County, Iowa

Our Model Tree links this Mary Schmidt across the 1920, 1930 and 1940 US Censuses in Pottawattamie-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1864), then head of a 4-person household.

Age 76 b. ~1864 Female Spouse Born: Indiana Married

1940 Census Record Details

Census Year	1940
Location	Pottawattamie-County, Iowa
Surname	Schmidt
Given Name	Mary M.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	76
Marital Status	Married
Birthplace	Indiana
1935 Residence (City)	Council Bluffs
Additional Details
Class of Worker	NP
Hours Worked	0
Income (1939)	0
Highest Grade	H 8
Birth State	Indiana
Birth Country	United States
Birthplace (normalized)	indiana
Township / Ward	Council Bluffs
Est. Birth Year	~1864

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
Lyda Henning	Daughter	—	74	~1866
Jacob Schmidt	Head	—	80	~1860
Frank Schmidt	Son	—	48	~1892
Mary Schmidt	Spouse	—	76	~1864

Census Appearances

1920

Pottawattamie, Iowa

Spouse, age 58

Pottawattamie, Iowa · implied b. ~1862 — 7 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Schmidt
Given Name	Mary M.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	58
Marital Status	Married
Birthplace	Indiana
Father's Birthplace	Germany
Mother's Birthplace	Germany
Occupation	none
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	German
Birth State	Indiana
Birth Country	United States
Birthplace (normalized)	indiana

1930

Pottawattamie, Iowa

Spouse, age 65

Pottawattamie, Iowa · implied b. ~1865 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Schmidt
Given Name	Mary M
Relationship to Head	wife
Sex	F
Color / Race	White
Age	65
Marital Status	Married
Birthplace	Indiana
Age at First Marriage	18
Father's Birthplace	Germany
Mother's Birthplace	Germany
Occupation	none
Can Read/Write	Yes
Birth State	Indiana
Birth Country	United States
Birthplace (normalized)	indiana

1940

Pottawattamie-County, Iowa

Spouse, age 76

Pottawattamie-County, Iowa · implied b. ~1864 — 4 household members

Surname	Schmidt
Given Name	Mary M.
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	76
Marital Status	Married
Birthplace	Indiana
1935 Residence (City)	Council Bluffs
Class of Worker	NP
Hours Worked	0
Income (1939)	0
Highest Grade	H 8
Birth State	Indiana
Birth Country	United States
Birthplace (normalized)	indiana

Model Tree

Linked across censuses

Our Model Tree links Mary Schmidt 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 Schmidt

Spouse · 1940 · age 76 · b. ~1864 · Iowa

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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 — Pottawattamie-County, Iowa Open full size

Page Contents

38 people indexed on this census page (nara:1940:m-t0627-01199-00300)

Line	Name	Age	Relation	Occupation	Birthplace
41	Hardy O Snipes	4	Son	—	Iowa
42	Margaret W Phillips	30	Daughter	—	Missouri
43	Leona M Phillips	18	Daughter	Housework	Iowa
44	Jacob R. A. Schmidt	80	Head	—	New York
45	Mary M. Schmidt THIS PERSON	76	Wife	—	Indiana
46	Frank B. Schmidt	48	Son	Carrier	Missouri
47	Lyda O Henning	74	Daughter	—	Iowa
48	Lloyd W Burns	33	Head	Clerk, Purchasing Dept	Iowa
49	Le Von D. Burns	29	Wife	—	Iowa
50	Marjorie J. Burns	5	Daughter	—	Iowa
51	Billy Burns	8	Son	—	Iowa
52	Charles Johnson	69	Head	Upholsterer	Denmark
53	Helen E. Johnson	57	Wife	—	Denmark
54	Ernest Dale Johnson	15	Boarder	—	Iowa
55	William W. Frame	26	Head	Coach Painter	Iowa
56	Hendy Frame	24	Wife	—	Iowa
57	John W. Frame	4	Son	—	Iowa
58	Richard W Frame	2	Son	—	Iowa
59	Clarence A Barge	45	Head	Chief	Iowa
60	Mae E. Barge	35	Wife	—	Missouri
61	Patricia J. Barge	13	Daughter	—	Iowa
62	Clarence A. Jr. Barge	4	Son	—	Iowa
64	W. E. Kealy	57	Head	Engineer	Nebraska
65	Edna Kealy	40	Wife	—	Kansas
66	Marion B Kealy	22	Son	Laborer	Iowa
67	Ruth S. Kealy	20	Daughter	Housework	Iowa
68	Billy E. Kealy	17	Son	—	Iowa
69	Nora K. Kealy	16	Daughter	—	Iowa
70	Dean E. Kealy	14	Son	—	Iowa
71	Patrick E. Kealy	13	Son	—	Iowa
72	George E. Bailey	58	Head	Fireman	Iowa
73	Ellen K. Bailey	58	Wife	—	New Jersey
74	Ellen R. Isaacson	82	Head	—	Denmark
75	Kathryn L. Phillips	48	Daughter	Stenographer	Nebraska
76	William A Janke	70	Head	Warehouseman	Iowa
77	James Catherine Janke	70	Wife	Housewife	Ohio
79	Alma V Kirk	66	Head	Housekeeper	Iowa
80	Harry W Kirk	50	Son	Clerk	Iowa

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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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