John Spencer — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Marshall-County, Iowa

Our Model Tree links this John Spencer across the 1920, 1930 and 1940 US Censuses in Marshall-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1894), then head of a 4-person household.

Age 46 b. ~1894 Male Head Born: Alabama Married

1940 Census Record Details

Census Year	1940
Location	Marshall-County, Iowa
Surname	Spencer
Given Name	John H
Relationship to Head	Head
Sex	M
Color / Race	Black
Age	46
Marital Status	Married
Birthplace	Alabama
1935 Residence (City)	Marshalltown City
1935 Residence (County)	Marshall
Additional Details
Occupation	night Clerk
Industry	Rail Road Shops
Class of Worker	PW
Hours Worked	56
Income (1939)	1300
Highest Grade	No 6
1935 Residence	Same House
Birth State	Alabama
Birth Country	United States
Birthplace (normalized)	alabama
Occupation	Night Clerk
Township / Ward	Marshalltown City
Est. Birth Year	~1894

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 John	Age	Birth yr
John Spencer	Head	—	46	~1894
Alberta Mays	Other	—	38	~1902
Thomas Spencer	Son	—	14	~1926
Jodana Spencer	Spouse	—	33	~1907

Census Appearances

1920

Marshall, Iowa

Head, age 26

Marshall, Iowa · implied b. ~1894 — 2 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Spencer
Given Name	John H.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	26
Marital Status	Married
Birthplace	Alabama
Father's Birthplace	Alabama
Mother's Birthplace	Alabama
Occupation	Helper
Industry	Gas Plant
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Home Owned/Rented	R
Birth State	Alabama
Birth Country	United States
Birthplace (normalized)	alabama

1930

Marshall, Iowa

Head, age 37

Marshall, Iowa · implied b. ~1893 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Spencer
Given Name	John D.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	37
Marital Status	Married
Birthplace	Alabama
Age at First Marriage	28
Father's Birthplace	Alabama
Mother's Birthplace	Alabama
Occupation	Laborer
Industry	Steam railroad
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	O
Home Value / Rent	1200
Birth State	Alabama
Birth Country	United States
Birthplace (normalized)	alabama

1940

Marshall-County, Iowa

Head, age 46

Marshall-County, Iowa · implied b. ~1894 — 4 household members

Surname	Spencer
Given Name	John H
Relationship to Head	Head
Sex	M
Color / Race	Black
Age	46
Marital Status	Married
Birthplace	Alabama
1935 Residence (City)	Marshalltown City
1935 Residence (County)	Marshall
Occupation	night Clerk
Industry	Rail Road Shops
Class of Worker	PW
Hours Worked	56
Income (1939)	1300
Highest Grade	No 6
1935 Residence	Same House
Birth State	Alabama
Birth Country	United States
Birthplace (normalized)	alabama

Model Tree

Linked across censuses

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

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This person

Anchor record

John Spencer

Head · 1940 · age 46 · b. ~1894 · 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 — Marshall-County, Iowa Open full size

Page Contents

38 people indexed on this census page (nara:1940:m-t0627-01182-00742)

Line	Name	Age	Relation	Occupation	Birthplace
1	Barbara Butters	5	Daughter	—	Iowa
2	Clarence E Trout	59	Head	Coffee Roaster	Illinois
3	Eva M Trout	58	Wife	—	Iowa
4	Victor Vokoun	28	Son-in-law	Laborer	Iowa
5	Almeda Vokoun	21	Daughter	Coffee Dept	Iowa
6	John H Spencer THIS PERSON	46	Head	Night Clerk	Alabama
7	Jodana (X) Spencer	33	Wife	—	Alabama
8	Thomas V Spencer	14	Son	—	Alabama
9	Alberta Mays	38	Sister-in-law	Housework	Alabama
10	John (X) Wilson	54	Head	Inspection	Iowa
11	Cecil Speas	24	Head	Laborer	Iowa
12	Maxine V Speas	26	Wife	—	Iowa
13	Gary Speas	3	Son	—	Iowa
14	Janice Banghart	18	Sister-in-law	Office	Iowa
15	William (X) Gondra	58	Head	Paper Hanger	Iowa
16	Effa Gondra	60	Wife	—	Ohio
17	William Gondra	33	Son	Paper Hanger	Iowa
18	Joseph Haramaza	67	Head	(Railroad Pension)	Czechoslovakia
19	Anna Haramaza	61	Wife	—	Czechoslovakia
20	Roy P (X) Dunlap	39	Head	Machinist	Iowa
21	Clara T Dunlap	36	Wife	—	Iowa
22	Robert Dunlap	4	Son	—	Iowa
23	Alva Kelsey	45	Head	Making Tile	Iowa
24	Eva Kelsey	40	Wife	—	Norway
25	Florence Kelsey	18	Daughter	—	Iowa
26	Irma Kelsey	17	Daughter	—	Iowa
27	Raymond Kelsey	15	Son	—	Iowa
28	Steven Major	50	Head	Laborer	Romania
29	Fanny Major	56	Wife	—	Iowa
30	Clyde Bates	23	Son	Grocery Clerk	Iowa
31	Daniel Yordy	23	Head	Laborer	Iowa
32	Marjorie Yordy	22	Wife	—	Iowa
33	Roger Yordy	1	Son	—	Iowa
34	Lynda Yordy	0	Daughter	—	Iowa
35	Charles Brown	50	Head	Laborer	Iowa
36	Jeanetta Brown	47	Wife	—	Iowa
37	William Brown	23	Son	Laborer	Iowa
38	John Brown	16	Son	—	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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