Mary Harding — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Johnson-County, Iowa

Our Model Tree links this Mary Harding across the 1920, 1930 and 1940 US Censuses in Johnson-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1877), then head of a 2-person household.

Age 63 b. ~1877 Female Head Born: Iowa Widowed

1940 Census Record Details

Census Year	1940
Location	Johnson-County, Iowa
Surname	Harding
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	63
Marital Status	Widowed
Birthplace	Iowa
1935 Residence (City)	Iowa City
1935 Residence (County)	Johnson
Additional Details
Occupation	cook
Industry	private home
Class of Worker	Pr
Hours Worked	40
Income (1939)	624
Highest Grade	Hs 2
1935 Residence	Same place
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa
Occupation	Cook
Township / Ward	Iowa City
Est. Birth Year	~1877

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.

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

Name	Relation to head	Relative to Mary	Age	Birth yr
Joseph Harding	Son	—	26	~1914
Mary Harding	Head	—	63	~1877

Census Appearances

1920

Johnson, Iowa

Head, age 42

Johnson, Iowa · implied b. ~1878 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Harding
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	42
Marital Status	Widowed
Birthplace	Iowa
Father's Birthplace	Austria
Mother's Birthplace	Austria
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Home Owned/Rented	O
Home Free/Mortgaged	F
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1930

Johnson, Iowa

Other, age 52

Johnson, Iowa · implied b. ~1878 — 6 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Harding
Given Name	Mary B.
Relationship to Head	Head-HO
Sex	F
Color / Race	White
Age	52
Marital Status	Widowed
Birthplace	Iowa
Father's Birthplace	Austria
Mother's Birthplace	Austria
Occupation	Cook
Industry	Odd jobs
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	6500
Veteran	O
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1940

Johnson-County, Iowa

Head, age 63

Johnson-County, Iowa · implied b. ~1877 — 2 household members

Surname	Harding
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	63
Marital Status	Widowed
Birthplace	Iowa
1935 Residence (City)	Iowa City
1935 Residence (County)	Johnson
Occupation	cook
Industry	private home
Class of Worker	Pr
Hours Worked	40
Income (1939)	624
Highest Grade	Hs 2
1935 Residence	Same place
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

Model Tree

Linked across censuses

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

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This person

Anchor record

Mary Harding

Head · 1940 · age 63 · b. ~1877 · 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 — Johnson-County, Iowa Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01171-00377)

Line	Name	Age	Relation	Occupation	Birthplace
1	Nancy Fick	8	daughter	—	Washington DC
2	Arthur B Cox	70	Head	—	Iowa
3	Elizabeth Cox	66	wife	—	Iowa
4	Catherine Cox	30	daughter	—	Iowa
5	Mary Baker	78	Head	—	Iowa
6	Thomas Murphy	29	Head	Instructor	Iowa
7	Laura Murphy	23	wife	Secretary	Nebraska
8	Jeanette Mcclenney	52	Head	Clerical	Iowa
9	Julia Mcclenney	23	daughter	—	Iowa
10	Josephine Mcclenney	20	daughter	—	Iowa
11	Joseph Mcclenney	18	son	—	Iowa
12	Russell Taylor	37	Head	Instructor	Ohio
13	Hugh Henderson	28	lodger	Instructor	Wisconsin
14	Maurice Steele	50	Head	Auditor	Iowa
15	Meda Steele	47	wife	—	Wisconsin
16	Elmer Dierks	39	Head	Minister	Nebraska
17	Greta Dierks	40	wife	—	Washington
18	Valerie Dierks	12	daughter	—	Ohio
19	Douglas Dierks	9	son	—	Iowa
20	Beatrice Dierks	7	daughter	—	Iowa
21	Barbara Dierks	3	daughter	—	Iowa
22	Helen Cisneiros	34	maid	Maid	Iowa
23	Fannie Munsun	61	Head	Housemother	Iowa
24	Eula Frank	54	Head	Housemother	Minnesota
25	Mary Reed	53	Head	Housemother	Illinois
26	Margaret Mcinnis	37	Cook	Cook	Iowa
27	Ruth Mcinnis	8	daughter	—	Iowa
28	Frederick Mcinnis	6	son	—	Iowa
29	Juanita Lane	52	Head	Housemother	Missouri
30	Elizabeth Hoyt	61	Head	Housemother	Ohio
31	Leona Mclean	55	Head	Housemother	Iowa
32	Margaret Jamison	65	Head	Housemother	Iowa
33	Wanda Nelson	30	daughter	Clerical	Iowa
34	Mae Davis	49	Mother	Cook	Canada
35	Harriet Epneter	77	Head	—	Ohio
36	Mayme Wagner	50	daughter	—	Ohio
37	Norman Jensen	24	Head	—	Iowa
38	Ruth Jensen	24	wife	Clerical	Iowa
39	Mary Harding THIS PERSON	63	Head	Cook	Iowa
40	Joseph Harding	26	son	Laborer	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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