Ralph Martin — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Washington-County, Iowa

Our Model Tree links this Ralph Martin across the 1920, 1930 and 1940 US Censuses in Washington-County, Iowa (XGBoost, ~Confirmed), with identified parents John & Mary — first a head (b.~1905), then head of a 5-person household.

Age 35 b. ~1905 Male Head Born: Iowa Married

1940 Census Record Details

Census Year	1940
Location	Washington-County, Iowa
Surname	Martin
Given Name	Ralph E.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	35
Marital Status	Married
Birthplace	Iowa
1935 Residence (City)	Washington
1935 Residence (County)	Washington
Additional Details
Occupation	Dry Cleaner
Industry	Dry Cleaning
Class of Worker	OA
Hours Worked	65
Income (1939)	0
Highest Grade	H 3
1935 Residence	Same place
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa
Occupation	Dry Cleaner
Township / Ward	Washington
Est. Birth Year	~1905

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 Ralph	Age	Birth yr
Ralph Martin	Head	—	35	~1905
Florence Forbes	Other	—	20	~1920
Mary Martin	Daughter	—	11	~1929
Maranda Martin	Daughter	—	12	~1928
Esther Martin	Spouse	—	33	~1907

Census Appearances

1920

Washington, Iowa

Son, age 14

Washington, Iowa · implied b. ~1906 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Martin
Given Name	Ralph
Relationship to Head	Son
Sex	M
Color / Race	White
Age	14
Marital Status	Single
Birthplace	Iowa
Father's Birthplace	Iowa
Mother's Birthplace	Illinois
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1930

Washington, Iowa

Head, age 25

Washington, Iowa · implied b. ~1905

● Primary link · ~Confirmed · 1 source

XGBoost

Surname	Martin
Given Name	Ralph E
Relationship to Head	Head
Sex	M
Color / Race	White
Age	25
Marital Status	Married
Birthplace	Iowa
Age at First Marriage	21
Father's Birthplace	Iowa
Mother's Birthplace	Illinois
Occupation	Deliveryman
Industry	Pantry
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	R
Home Value / Rent	15.00
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1940

Washington-County, Iowa

Head, age 35

Washington-County, Iowa · implied b. ~1905 — 5 household members

Surname	Martin
Given Name	Ralph E.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	35
Marital Status	Married
Birthplace	Iowa
1935 Residence (City)	Washington
1935 Residence (County)	Washington
Occupation	Dry Cleaner
Industry	Dry Cleaning
Class of Worker	OA
Hours Worked	65
Income (1939)	0
Highest Grade	H 3
1935 Residence	Same place
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

Model Tree

Model Tree available

Our Model Tree links Ralph Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Martin (~0.92 confidence) and mother Mary Martin (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.

Show:

Gen 1 Parents confidence ≈ 0.92

Father

John Martin

b. ~1857

Source father

● Household · direct · ~0.92

Mother

Mary Martin

b. ~1862

Source mother

● Household · direct · ~0.92

This person

Anchor record

Ralph Martin

Head · 1940 · age 35 · b. ~1905 · 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 — Washington-County, Iowa Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01211-00507)

Line	Name	Age	Relation	Occupation	Birthplace
41	Ora F. Roller	52	Head	Dentist	Iowa
42	Stella F. Roller	50	Wife	—	Iowa
43	Grace M. Coughlin	38	Lodger	Beauty Operator	Illinois
44	Maurice J. Cruse	34	Head	Dentist	Iowa
45	Kathryn E. Cruse	35	Wife	—	Iowa
46	Leonard Lacky	23	Lodger	Waiter	Iowa
47	Kenneth White	26	Lodger	Embalmer	Iowa
48	Marie Lander	35	Lodger	Teacher	Iowa
49	James A. Nicholson	77	Head	—	Iowa
50	Florence E. Nicholson	69	Wife	—	Iowa
51	Lee A. Holland	38	Head	Vice President	Iowa
52	Gwendolyn Holland	37	Wife	—	Iowa
53	Daniel L. Holland	8	Son	—	Iowa
54	Caroline L. Holland	4	Daughter	—	Iowa
55	Nell J. Sexton	60	Head	—	Iowa
56	Stanley L. Moore	33	Head	Salesman	Iowa
57	Alice C. Moore	29	Wife	—	Missouri
58	Doris R. Moore	7	Daughter	—	Iowa
59	Jack R. Moore	5	Son	—	Iowa
60	Jesse T. Moore	65	Father	Salesman	Iowa
61	Bertha Moore	56	Mother	—	Iowa
62	Richard E. Moore	16	Brother	—	Iowa
63	Albert J. O'Shea	33	Head	Butter Maker	Iowa
64	Ora E. O'Shea	35	Wife	—	Iowa
65	Mary E. O'Shea	12	Daughter	—	Iowa
66	William W. O'Shea	10	Son	—	Iowa
67	Ruth J. O'Shea	9	Daughter	—	Iowa
68	Shirley M. O'Shea	4	Daughter	—	Iowa
69	Ralph E. Martin THIS PERSON	35	Head	Dry Cleaner	Iowa
70	Esther R. Martin	33	Wife	Operator	Iowa
71	Maranda M. Martin	12	Daughter	—	Iowa
72	Mary L. Martin	11	Daughter	—	Iowa
73	Florence E. Forbes	20	Maid	Maid	Iowa
74	Ross A. Riley	36	Head	Dept. Head Salesman	Nebraska
75	Beulah M. Riley	39	Wife	—	Oklahoma
76	Dolores A. Riley	6	Daughter	—	Nebraska
77	David A. Riley	3	Son	—	Iowa
78	Robert R. Noonan	47	Head	Clerk	Iowa
79	Mildred F. Noonan	34	Wife	—	Illinois
80	Robert J. Noonan	10	Son	—	Iowa

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Pedigree Summary

Ralph

Gen 1 · 2 parents ~0.92

Max depth 4 (1900–1950 window)

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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