John Hart — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Woodbury-County, Iowa

Our Model Tree links this John Hart across the 1920, 1930 and 1940 US Censuses in Woodbury-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1860), then head of a 4-person household.

Age 80 b. ~1860 Male Head Born: Indiana Widowed

1940 Census Record Details

Census Year	1940
Location	Woodbury-County, Iowa
Surname	Hart
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	80
Marital Status	Widowed
Birthplace	Indiana
1935 Residence (City)	Danbury town
1935 Residence (County)	Woodbury
Additional Details
Highest Grade	No 8
1935 Residence	Same place
Birth State	Indiana
Birth Country	United States
Birthplace (normalized)	indiana
Township / Ward	Danbury Town
Est. Birth Year	~1860

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
Cora Evans	Daughter	—	54	~1886
John Hart	Head	—	80	~1860
Arline Evans	Other	—	18	~1922
John Evans	Other	—	56	~1884

Census Appearances

1920

Woodbury, Iowa

Head, age 60

Woodbury, Iowa · implied b. ~1860 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Hart
Given Name	John H.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	60
Marital Status	Married
Birthplace	Indiana
Father's Birthplace	Kentucky
Mother's Birthplace	Indiana
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Home Owned/Rented	O
Home Free/Mortgaged	F
Birth State	Indiana
Birth Country	United States
Birthplace (normalized)	indiana

1930

Woodbury, Iowa

Head, age 70

Woodbury, Iowa · implied b. ~1860 — 2 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Hart
Given Name	John H.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	70
Marital Status	Married
Birthplace	Indiana
Age at First Marriage	19
Father's Birthplace	Kentucky
Mother's Birthplace	Indiana
Occupation	none
Can Read/Write	Yes
Home Owned/Rented	O
Home Value / Rent	2000
Birth State	Indiana
Birth Country	United States
Birthplace (normalized)	indiana

1940

Woodbury-County, Iowa

Head, age 80

Woodbury-County, Iowa · implied b. ~1860 — 4 household members

Surname	Hart
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	80
Marital Status	Widowed
Birthplace	Indiana
1935 Residence (City)	Danbury town
1935 Residence (County)	Woodbury
Highest Grade	No 8
1935 Residence	Same place
Birth State	Indiana
Birth Country	United States
Birthplace (normalized)	indiana

Model Tree

Linked across censuses

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

Show:

This person

Anchor record

John Hart

Head · 1940 · age 80 · b. ~1860 · 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 — Woodbury-County, Iowa Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01214-00310)

Line	Name	Age	Relation	Occupation	Birthplace
1	Elsie F. Ahlwardt	16	Son	—	Iowa
2	Elma E. Ahlwardt	15	Daughter	—	Iowa
3	Bart Barry	55	Head	Manager	Iowa
4	Ray Boy Barry	24	Son	Salesman	Iowa
5	George Barry	22	Son	Helper	Iowa
6	Joyce Barry	20	Daughter	—	Iowa
7	Mary Bollig	65	Head	—	Iowa
8	Godfrey Duroch	56	Head	Manager	Iowa
9	Bert A. Duroch	18	Son	—	Iowa
10	Burton Jacobsen	23	Lodger	Farm Laborer	Iowa
11	Irene Jacobsen	20	Wife	—	Iowa
12	Gordon Duroch	31	Head	Laborer	Iowa
13	Mable Duroch	29	Wife	—	South Dakota
14	Clara Owens	62	Head	—	Iowa
15	Evan Williams	79	Cousin	—	Illinois
16	Thomas Faulker	87	Cousin	—	Wisconsin
17	Ben Reimer	34	Head	Laborer	Iowa
18	Marie Reimer	31	Wife	—	Iowa
19	Cecil Reimer	12	Son	—	Iowa
20	Donna M. Reimer	9	Daughter	—	South Dakota
21	Betty Lou Reimer	8	Daughter	—	Iowa
22	Lois Reimer	7	Daughter	—	Iowa
23	Marilyn Reimer	4	Daughter	—	Iowa
24	Alice Reimer	3	Daughter	—	Iowa
25	Julia Wilson	73	Head	—	Illinois
26	Richard Colbert	52	Nephew	Manager	Iowa
27	Charles R. Anderson	49	Head	Attorney	Iowa
28	Hope Anderson	50	Wife	—	Iowa
29	Jane Anderson	18	Daughter	—	Minnesota
30	Jean Anderson	18	Daughter	—	Minnesota
31	Seibold Anderson	13	Son	—	Iowa
32	Rose Grilly	70	Head	—	Iowa
33	Alfred Grilly	39	Son	—	Iowa
34	John Hart THIS PERSON	80	Head	—	Indiana
35	Cora Evans	54	Daughter	—	Iowa
36	John Evans	56	Son-in-law	Barber	Pennsylvania
37	Arline Evans	18	Granddaughter	—	Iowa
38	Lou Mitchell	44	Head	—	Indiana
39	Mamie Mitchell	42	Wife	Seamstress	Iowa
40	Maxine Mitchell	19	Daughter	—	Iowa

Search for John Hart

All John Hart Census Records Discover Hart Family Tree

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)

Report inaccurate data