Elmer Peterson — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Clinton-County, Iowa

Our Model Tree links this Elmer Peterson across the 1920, 1930 and 1940 US Censuses in Clinton-County, Iowa (XGBoost, ~Confirmed), with identified parents Henry & Magdalena — first a head (b.~1907), then head of a 4-person household.

Age 33 b. ~1907 Male Head Born: Iowa Married

1940 Census Record Details

Census Year	1940
Location	Clinton-County, Iowa
Surname	Peterson
Given Name	Elmer H
Relationship to Head	Head
Sex	M
Color / Race	White
Age	33
Marital Status	Married
Birthplace	Iowa
1935 Residence (City)	Clinton
1935 Residence (County)	Clinton
Additional Details
Occupation	Laborer
Industry	R.R.A
Class of Worker	PW
Hours Worked	40
Income (1939)	1280
Highest Grade	No 8
1935 Residence	Iowa
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa
Occupation	Laborer
Township / Ward	Low Moor
Est. Birth Year	~1907

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 Elmer	Age	Birth yr
Judith Peterson	Daughter	—	10	~1930
Ronald Peterson	Son	—	4	~1936
Elmer Peterson	Head	—	33	~1907
Bessie Peterson	Spouse	—	33	~1907

Census Appearances

1920

Clinton, Iowa

Son, age 13

Clinton, Iowa · implied b. ~1907 — 9 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Petersen
Given Name	Elmer
Relationship to Head	Son
Sex	M
Color / Race	White
Age	13
Marital Status	Single
Birthplace	Iowa
Father's Birthplace	Iowa
Mother's Birthplace	Germany
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	German
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1930

Clinton, Iowa

Head, age 24

Clinton, Iowa · implied b. ~1906 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Petersen
Given Name	Elmer
Relationship to Head	Head
Sex	M
Color / Race	White
Age	24
Marital Status	Married
Birthplace	Iowa
Age at First Marriage	22
Father's Birthplace	Iowa
Mother's Birthplace	Germany
Occupation	Farmer
Industry	General Farm
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	R
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1940

Clinton-County, Iowa

Head, age 33

Clinton-County, Iowa · implied b. ~1907 — 4 household members

Surname	Peterson
Given Name	Elmer H
Relationship to Head	Head
Sex	M
Color / Race	White
Age	33
Marital Status	Married
Birthplace	Iowa
1935 Residence (City)	Clinton
1935 Residence (County)	Clinton
Occupation	Laborer
Industry	R.R.A
Class of Worker	PW
Hours Worked	40
Income (1939)	1280
Highest Grade	No 8
1935 Residence	Iowa
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

Model Tree

Model Tree available

Our Model Tree links Elmer Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Henry Petersen (~0.92 confidence) and mother Magdalena Petersen (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.

Show:

Gen 1 Parents confidence ≈ 0.92

Father

Henry Petersen

b. ~1876

Source father

● Household · direct · ~0.92

Mother

Magdalena Petersen

b. ~1882

Source mother

● Household · direct · ~0.92

This person

Anchor record

Elmer Peterson

Head · 1940 · age 33 · b. ~1907 · Iowa

★ You are viewing this record

Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1940 US Federal Census — Clinton-County, Iowa Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01151-00109)

Line	Name	Age	Relation	Occupation	Birthplace
41	Charles Nuerminger	58	Head	Salesman	Iowa
42	Harriet F Nuerminger	49	Wife	—	Illinois
43	Jacqueline G Nuerminger	20	Daughter	—	Iowa
44	George L Hall	48	Head	Carpenter	Iowa
45	Elsie L Hall	51	Wife	—	Iowa
46	Robert H Hall	19	Son	—	Iowa
47	Harold E Hall	17	Son	—	Iowa
48	Dale T Hall	15	Son	—	Iowa
49	Stewart L Hall	12	Son	—	Iowa
50	Bernhardt H Bade	38	Head	Truck Driver	Iowa
51	Anna M Bade	33	Wife	—	Iowa
52	Marvin F Bade	5	Son	—	Iowa
53	Oscar R Peterson	49	Head	Carpenter	Sweden
54	Elsie L Peterson	43	Wife	—	Iowa
55	Verna L Peterson	17	Daughter	—	Iowa
56	Ben J Johnson	52	Head	Farmer	Sweden
57	Mabel Johnson	52	Wife	—	Illinois
58	Raymond Johnson	20	Son	—	Iowa
59	Maynard B Johnson	16	Son	—	Iowa
60	Adelphia Peterson	79	Head	—	Sweden
61	Edgar F Miller	50	Head	Truck Driver	Iowa
62	Bertha E Miller	49	Wife	—	Iowa
63	William B Miller	23	Son	—	Iowa
64	Howard H Hudson	51	Head	—	Iowa
65	Bertha E Hudson	50	Wife	—	Germany
66	Effie R Hudson	22	Daughter	Stenographer	Iowa
67	Irma J Hudson	20	Daughter	Office Worker	Iowa
68	Elmer H Peterson THIS PERSON	33	Head	Laborer	Iowa
69	Bessie M Peterson	33	Wife	—	Iowa
70	Judith J Peterson	10	Daughter	—	Iowa
71	Ronald M Peterson	4	Son	—	Iowa
72	Annie E Crampton	67	Head	—	Iowa
73	Alma J Beel	75	Head	—	Iowa
74	Mabel E Smith	53	Daughter	Clerk	Iowa
75	Virtus J Breve	35	Head	Laborer	Iowa
76	Clyde E Breve	37	Wife	—	Iowa
77	Truman C Breve	11	Son	—	Iowa
78	Cortland J Breve	10	Son	—	Iowa
79	Arlene J Breve	8	Daughter	—	Iowa
80	Gloria J Breve	7	Daughter	—	Iowa

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Pedigree Summary

Elmer

Gen 1 · 2 parents ~0.92

Max depth 4 (1900–1950 window)

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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