Martha Robinson — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Polk-County, Iowa

Our Model Tree links this Martha Robinson across the 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1858), then head of a 2-person household.

Age 82 b. ~1858 Female Head Born: Missouri Widowed

1940 Census Record Details

Census Year	1940
Location	Polk-County, Iowa
Surname	Robinson
Given Name	Martha A.
Relationship to Head	Head
Sex	F
Color / Race	White
Age	82
Marital Status	Widowed
Birthplace	Missouri
1935 Residence (City)	Des Moines City
1935 Residence (County)	Polk
Additional Details
Highest Grade	Hs 4
1935 Residence	Same house
Birth State	Missouri
Birth Country	United States
Birthplace (normalized)	missouri
Township / Ward	Des Moines City
Est. Birth Year	~1858

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 Martha	Age	Birth yr
William Robinson	Son	—	64	~1876
Martha Robinson	Head	—	82	~1858

Census Appearances

1920

Polk, Iowa

Other, age 61

Polk, Iowa · implied b. ~1859 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Robinson
Given Name	Martha A
Relationship to Head	Mother-in-law
Sex	F
Color / Race	White
Age	61
Marital Status	Widowed
Birthplace	Missouri
Father's Birthplace	Indiana
Mother's Birthplace	Kentucky
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Missouri
Birth Country	United States
Birthplace (normalized)	missouri

1930

Polk, Iowa

Head, age 72

Polk, Iowa · implied b. ~1858 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Robinson
Given Name	Martha A
Relationship to Head	Head
Sex	F
Color / Race	White
Age	72
Marital Status	Widowed
Birthplace	Missouri
Age at First Marriage	20
Father's Birthplace	Indiana
Mother's Birthplace	Indiana
Can Read/Write	Yes
Home Owned/Rented	O
Home Value / Rent	2000
Birth State	Missouri
Birth Country	United States
Birthplace (normalized)	missouri

1940

Polk-County, Iowa

Head, age 82

Polk-County, Iowa · implied b. ~1858 — 2 household members

Surname	Robinson
Given Name	Martha A.
Relationship to Head	Head
Sex	F
Color / Race	White
Age	82
Marital Status	Widowed
Birthplace	Missouri
1935 Residence (City)	Des Moines City
1935 Residence (County)	Polk
Highest Grade	Hs 4
1935 Residence	Same house
Birth State	Missouri
Birth Country	United States
Birthplace (normalized)	missouri

Model Tree

Linked across censuses

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

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This person

Anchor record

Martha Robinson

Head · 1940 · age 82 · b. ~1858 · 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 — Polk-County, Iowa Open full size

Page Contents

37 people indexed on this census page (nara:1940:m-t0627-01195-00038)

Line	Name	Age	Relation	Occupation	Birthplace
1	Kenneth Jr. Bies	13	Son	—	Iowa
2	Paul A. Larson	15	Step-son	—	Iowa
3	Willis C. Hokenson	25	Head	Carpenter	Ohio
4	Naomi D. Hokenson	24	Wife	—	Iowa
5	Nilomi D. Hokenson	4	Daughter	—	Iowa
6	Barbara K. Hokenson	1	Daughter	—	Iowa
7	Harry V. Dorn	64	Head	Janitor	Iowa
8	Eva M. Dorn	54	Wife	—	Iowa
9	Merrell D. Dorn	27	Son	Solicitor	Iowa
11	William Q. Aaberg	35	Head	Printer	Kansas
12	Rae Aaberg	41	Wife	—	Iowa
13	Cletus A. Willcockson	46	Head	Postal Clerk	Missouri
14	Marie A. Willcockson	42	Wife	—	Iowa
15	Wanda Belle Willcockson	16	Daughter	—	Iowa
16	Darlene L. Willcockson	14	Daughter	—	Iowa
17	Marlyn M. Willcockson	12	Daughter	—	Iowa
18	Harlan Willcockson	4	Daughter	—	Iowa
19	Paul H. Willcockson	0	Son	—	Iowa
20	Helen B. Clement	42	Head	Matron	Iowa
21	Hulda C. Clement	22	Daughter	Long Distance Operator	Iowa
22	Ruth L. Clement	20	Daughter	Elevator Operator	Oklahoma
23	Richard C. Duran	22	Lodger	Oil Station Attendant	Iowa
25	John H. Baumeister	46	Head	Carpenter	Iowa
26	Alice M. Baumeister	42	Wife	—	Iowa
27	Arthur J. Kempton	66	Head	Meat Cutter	Iowa
28	Stella K. Kempton	63	Wife	—	Ohio
29	Martha A. Robinson THIS PERSON	82	Head	—	Missouri
30	William B. Robinson	64	Son	Furnace Man	Iowa
31	Robert Munro	45	Head	Janitor	Scotland
32	Leta L. Munro	38	Wife	—	Iowa
33	Harry Wheeler	67	Head	Laborer	Iowa
34	Anna D. Wheeler	55	Wife	Silk Presser	Iowa
35	Eva Bennett	43	Daughter	—	Iowa
36	Andrew C. Nelson	53	Head	Painter	Nebraska
37	Adeline A. Nelson	54	Wife	Saleslady	Iowa
38	Robert F. Hill	13	Grandson	—	Iowa
39	Earl A. Davis	57	Head	Cabinet Maker	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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