Gertrude Brown — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Buchanan-County, Iowa

Our Model Tree links this Gertrude Brown across the 1920, 1930 and 1940 US Censuses in Buchanan-County, Iowa (XGBoost, ~Confirmed), with identified parents Bertha & Mark — first a daughter (b.~1913), then head of a 2-person household.

Age 27 b. ~1913 Female Daughter Born: Iowa Single

1940 Census Record Details

Census Year	1940
Location	Buchanan-County, Iowa
Surname	Brown
Given Name	Gertrude
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	27
Marital Status	Single
Birthplace	Iowa
1935 Residence (City)	Cono
1935 Residence (County)	Buchanan
Additional Details
Highest Grade	5
1935 Residence	Same house
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa
Township / Ward	Cono
Est. Birth Year	~1913

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 Gertrude	Age	Birth yr
Gertrude Brown	Daughter	—	27	~1913
Mark Brown	Head	—	64	~1876

Census Appearances

1920

Buchanan, Iowa

Daughter, age 7

Buchanan, Iowa · implied b. ~1913 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Brown
Given Name	Gertrude
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	7
Marital Status	Single
Birthplace	Iowa
Father's Birthplace	Iowa
Mother's Birthplace	Iowa
Occupation	none
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1930

Buchanan, Iowa

Daughter, age 17

Buchanan, Iowa · implied b. ~1913 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Brown
Given Name	Gertrude M.
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	17
Marital Status	Single
Birthplace	Iowa
Father's Birthplace	Iowa
Mother's Birthplace	Iowa
Can Read/Write	Yes
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1940

Buchanan-County, Iowa

Daughter, age 27

Buchanan-County, Iowa · implied b. ~1913 — 2 household members

Surname	Brown
Given Name	Gertrude
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	27
Marital Status	Single
Birthplace	Iowa
1935 Residence (City)	Cono
1935 Residence (County)	Buchanan
Highest Grade	5
1935 Residence	Same house
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

Model Tree

Model Tree available

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

Show:

Gen 1 Parents confidence ≈ 0.92

Mother

Bertha Brown

b. ~1873

Source mother

● Household · direct · ~0.92

Father

Mark Brown

b. ~1876

Source father

● Household · direct · ~0.92

This person

Anchor record

Gertrude Brown

Daughter · 1940 · age 27 · b. ~1913 · 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 — Buchanan-County, Iowa Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01142-00608)

Line	Name	Age	Relation	Occupation	Birthplace
41	Alfred Nelson	2	Son	—	Iowa
42	Nancy Nelson	0	Daughter	—	Iowa
43	Vernon G. Winn	38	Head	Farming	Iowa
44	Mary Winn	34	Wife	—	Iowa
45	Norman Winn	10	Son	—	Iowa
46	Jeannine Winn	9	Daughter	—	Iowa
47	Ellen Winn	7	Daughter	—	Iowa
48	Marjorie Winn	6	Daughter	—	Iowa
49	Burton Winn	4	Son	—	Iowa
50	Marcellus Winn	1	Son	—	Iowa
51	Burton Winn	70	Father	Farming	Iowa
52	Roy Manson	46	Head	Farming	Iowa
53	Zoe Manson	44	Wife	—	Iowa
54	Lavern Manson	19	Son	Farming	Iowa
55	Virgil Manson	15	Son	Farming	Iowa
56	Dorothy Manson	12	Daughter	—	Iowa
57	Albie Fairchild	42	Head	Farming	Iowa
58	Blanche Fairchild	41	Wife	—	Iowa
59	Mark Brown	64	Head	—	Iowa
60	Gertrude Brown THIS PERSON	27	Daughter	—	Iowa
61	Herbert Chesmore	30	Head	Farming	Iowa
62	Vonda Chesmore	26	Wife	—	Iowa
63	Keith Chesmore	4	Son	—	Iowa
64	Marjorie Chesmore	1	Daughter	—	Iowa
65	Ray Chesmore	45	Head	Farming	Iowa
66	Stanley Chesmore	0	Son	—	Iowa
67	Mabel B. Jewell	21	Daughter	Housekeeper	Iowa
68	Betty J. Jewell	7	Granddaughter	—	Iowa
69	Lee Jewell	5	Grandson	—	Iowa
70	Bobby Jewell	3	Grandson	—	Iowa
71	Eliza A. Brown	69	Head	—	Iowa
72	Wayne Brown	29	Son	Farming	Iowa
73	Dorothy Brown	23	Daughter-in-law	—	Iowa
74	Marlene Brown	2	Granddaughter	—	Iowa
75	Donald Brown	1	Grandson	—	Iowa
76	Fay Frank	9	Boarder	—	Iowa
77	Fred Perry	63	Brother	Laborer	Iowa
78	Elza Chesmore	44	Head	Farming	Iowa
79	Olga Chesmore	43	Wife	—	Iowa
80	Robert Chesmore	11	Son	—	Iowa

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Pedigree Summary

Gertrude

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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