Thomas Hill — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Delaware-County, Iowa

Our Model Tree links this Thomas Hill across the 1920, 1930 and 1940 US Censuses in Delaware-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1874), then head of a 5-person household.

Age 66 b. ~1874 Male Head Born: Iowa Married

1940 Census Record Details

Census Year	1940
Location	Delaware-County, Iowa
Surname	Hill
Given Name	Thomas J
Relationship to Head	Head
Sex	M
Color / Race	White
Age	66
Marital Status	Married
Birthplace	Iowa
1935 Residence (City)	Coffins Grove
1935 Residence (County)	Delaware
Additional Details
Highest Grade	8
1935 Residence	Same place
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa
Township / Ward	Coffins Grove
Est. Birth Year	~1874

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 Thomas	Age	Birth yr
Thomas Hill	Head	—	66	~1874
John Hill	Son	—	26	~1914
Charles Hill	Son	—	21	~1919
Earl Hill	Son	—	16	~1924
Isabelle Hill	Spouse	—	57	~1883

Census Appearances

1920

Delaware, Iowa

Head, age 46

Delaware, Iowa · implied b. ~1874 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Hill
Given Name	Thomas J.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	46
Marital Status	Married
Birthplace	Iowa
Father's Birthplace	New York
Mother's Birthplace	Canada
Occupation	Farmer
Industry	General farm
Class of Worker	OA
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	English
Home Owned/Rented	R
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1930

Delaware, Iowa

Head, age 56

Delaware, Iowa · implied b. ~1874 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Hill
Given Name	Thomas
Relationship to Head	Head
Sex	M
Color / Race	White
Age	56
Marital Status	Married
Birthplace	Iowa
Age at First Marriage	29
Father's Birthplace	New York
Mother's Birthplace	Canada-French
Occupation	Farmer
Industry	General Farm
Class of Worker	O
Can Read/Write	Yes
Home Owned/Rented	O
Home Value / Rent	9000
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1940

Delaware-County, Iowa

Head, age 66

Delaware-County, Iowa · implied b. ~1874 — 5 household members

Surname	Hill
Given Name	Thomas J
Relationship to Head	Head
Sex	M
Color / Race	White
Age	66
Marital Status	Married
Birthplace	Iowa
1935 Residence (City)	Coffins Grove
1935 Residence (County)	Delaware
Highest Grade	8
1935 Residence	Same place
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

Model Tree

Linked across censuses

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

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This person

Anchor record

Thomas Hill

Head · 1940 · age 66 · b. ~1874 · 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 — Delaware-County, Iowa Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01155-00088)

Line	Name	Age	Relation	Occupation	Birthplace
1	Hattie L Coleson	67	Head	—	Iowa
2	Herbert Whitman	27	Head	Farmer	Iowa
3	Ruth C Whitman	30	Wife	—	Iowa
4	Margaret J Whitman	4	Daughter	—	Iowa
5	Loyd H Anniss	35	Head	Farmer	Iowa
6	Phyllis M Anniss	34	Wife	—	Iowa
7	Phyllis M Anniss	10	Daughter	—	Iowa
8	Ray B Miller	50	Head	Farmer	Iowa
9	Violet L Miller	45	Wife	—	Iowa
10	Roger B Miller	21	Son	Farmer	Iowa
11	Thomas J Hill THIS PERSON	66	Head	—	Iowa
12	Isabelle Hill	57	Wife	—	Iowa
13	John A Hill	26	Son	Farmer	Iowa
14	Charles L Hill	21	Son	Mechanic	Iowa
15	Earl W Hill	16	Son	Farmer	Iowa
16	Guy V Minnie	40	Head	Farmer	Iowa
17	Isabel S Minnie	43	Wife	—	Iowa
18	Lillian J Minnie	17	Daughter	—	Iowa
19	George Hildebrand	75	Laborer	—	Iowa
20	Jacob Chambers	86	Head	—	Iowa
21	Thomas J Welch	42	Head	Farmer	Wisconsin
22	Amanda E Welch	38	Wife	—	Iowa
23	Marena E Welch	13	Daughter	—	Iowa
24	Donald E Welch	7	Son	—	Iowa
25	Loren Welch	2	Son	—	Iowa
26	William Montague	39	Head	Farmer	Illinois
27	Mae Montague	46	Wife	—	Iowa
28	Mike Montague	69	Father	—	Indiana
29	Gertie Montague	64	Mother	—	Kansas
30	Fred Oler	42	Head	Farmer	Iowa
31	Leah A Oler	42	Wife	—	Iowa
32	Donald A Oler	19	Son	Farmer	Iowa
33	Dale A Oler	19	Son	Farmer	Iowa
34	Betty L Oler	11	Daughter	—	Iowa
35	Thelma Mae Oler	8	Daughter	—	Iowa
36	Sallie Oler	5	Daughter	—	Iowa
37	Jeanette Buden	16	Hired girl	Hired Girl	Iowa
38	Mylo S Nichols	39	Head	—	Iowa
39	Mandy Nichols	34	Wife	—	Iowa
40	Betty Nichols	6	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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