Peter Smith — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Bremer-County, Iowa

Our Model Tree links this Peter Smith across the 1920, 1930 and 1940 US Censuses in Bremer-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1879), then head of a 3-person household.

Age 61 b. ~1879 Male Head Born: Pennsylvania Married

1940 Census Record Details

Census Year	1940
Location	Bremer-County, Iowa
Surname	Smith
Given Name	Peter
Relationship to Head	Head
Sex	M
Color / Race	White
Age	61
Marital Status	Married
Birthplace	Pennsylvania
1935 Residence (City)	Polk Township
1935 Residence (County)	Bremer
Additional Details
Occupation	Farmer
Industry	Farming
Class of Worker	OA
Hours Worked	70
Income (1939)	0
Highest Grade	No 0
1935 Residence	Same place
Birth State	Pennsylvania
Birth Country	United States
Birthplace (normalized)	pennsylvania
Occupation	Farmer
Township / Ward	Polk Township
Est. Birth Year	~1879

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.

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

Name	Relation to head	Relative to Peter	Age	Birth yr
Peter Smith	Head	—	61	~1879
Russell Smith	Son	—	17	~1923
Gertrude Smith	Spouse	—	54	~1886

Census Appearances

1920

Bremer, Iowa

Head, age 41

Bremer, Iowa · implied b. ~1879 — 6 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Smith
Given Name	Peter
Relationship to Head	Head
Sex	M
Color / Race	White
Age	41
Marital Status	Married
Birthplace	Pennsylvania
Father's Birthplace	Pennsylvania
Mother's Birthplace	Pennsylvania
Occupation	Farmer
Industry	Rented Farm
Class of Worker	OA
Can Read	No
Can Write	No
Speaks English	Yes
Home Owned/Rented	R
Birth State	Pennsylvania
Birth Country	United States
Birthplace (normalized)	pennsylvania

1930

Bremer, Iowa

Head, age 51

Bremer, Iowa · implied b. ~1879 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Smith
Given Name	Peter
Relationship to Head	Head
Sex	M
Color / Race	White
Age	51
Marital Status	Married
Birthplace	Pennsylvania
Age at First Marriage	24
Father's Birthplace	Pennsylvania
Mother's Birthplace	Pennsylvania
Occupation	Farmer
Industry	General farm
Class of Worker	O
Can Read/Write	No
Home Owned/Rented	O
Birth State	Pennsylvania
Birth Country	United States
Birthplace (normalized)	pennsylvania

1940

Bremer-County, Iowa

Head, age 61

Bremer-County, Iowa · implied b. ~1879 — 3 household members

Surname	Smith
Given Name	Peter
Relationship to Head	Head
Sex	M
Color / Race	White
Age	61
Marital Status	Married
Birthplace	Pennsylvania
1935 Residence (City)	Polk Township
1935 Residence (County)	Bremer
Occupation	Farmer
Industry	Farming
Class of Worker	OA
Hours Worked	70
Income (1939)	0
Highest Grade	No 0
1935 Residence	Same place
Birth State	Pennsylvania
Birth Country	United States
Birthplace (normalized)	pennsylvania

Model Tree

Linked across censuses

Our Model Tree links Peter Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.

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This person

Anchor record

Peter Smith

Head · 1940 · age 61 · b. ~1879 · 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 — Bremer-County, Iowa Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01142-00276)

Line	Name	Age	Relation	Occupation	Birthplace
1	Peter Smith THIS PERSON	61	Head	Farmer	Pennsylvania
2	Gertrude Smith	54	Wife	—	Iowa
3	Russell Smith	17	Son	Farm Laborer	Iowa
4	Carl C. Alcorn	27	Head	Farmer	Iowa
5	Gertrude Alcorn	29	Wife	—	Iowa
6	Eugene C. Hornberger	64	Hired hand	Farm Laborer	France
7	Alva J. Kritcher	29	Head	Farmer	Iowa
8	Marie Kritcher	26	Wife	—	Iowa
9	John A. Kritcher	6	Son	—	Iowa
10	Joan Kritcher	4	Daughter	—	Iowa
11	Lorence Kritcher	36	Brother	Farmer	Iowa
12	Claude L. Kritcher	25	Brother	Farmer	Iowa
13	Harm Rand	54	Head	Farmer	Netherlands
14	Engeline Rand	47	Wife	—	Germany
15	George H. De Vries	24	Step son	Farm Laborer	Iowa
16	William L. Schmidt	19	Step son	Farm Laborer	Iowa
17	Henrietta Rand	15	Daughter	—	Iowa
18	Richard F. Zittauer	32	Head	Farmer	Iowa
19	Melinda Zittauer	37	Wife	—	Iowa
20	Alice Zittauer	8	Daughter	—	Iowa
21	Leo Zwanziger	27	Head	Farmer	Iowa
22	Marie Zwanziger	27	Wife	—	Iowa
23	Jean Zwanziger	7	Daughter	—	Iowa
24	William Zwanziger	6	Son	—	Iowa
25	Duane Zwanziger	4	Son	—	Iowa
26	Leland Zwanziger	3	Son	—	Iowa
27	Carl Wagner	63	Head	Farmer	Germany
28	Freida Wagner	51	Wife	—	Germany
29	Harry Wagner	23	Son	Farm Laborer	Iowa
30	Alice Wagner	21	Daughter in law	—	Iowa
31	Robinson, Ronald Wagner	3	Grandson	—	Iowa
32	Irving L. Liddle	38	Head	Farmer	Iowa
33	Bernice Liddle	33	Wife	—	Kansas
34	Betty Liddle	15	Daughter	—	Iowa
35	Merlin Liddle	11	Son	—	Iowa
36	Geraldine Liddle	8	Daughter	—	Iowa
37	Gerald Liddle	8	Son	—	Iowa
38	Richard L. Johnston	27	Head	Farmer	Iowa
39	Mabel Johnston	28	Wife	—	Iowa
40	Darlene Johnston	2	Daughter	—	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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