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Lois Brown — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Boone-County, Iowa

Our Model Tree links this Lois Brown across the 1930 and 1940 US Censuses in Boone-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 10-person household.

Age 16 b. ~1924 Female Daughter Born: Iowa Single

1940 Census Record Details

Census Year1940
LocationBoone-County, Iowa
SurnameBrown
Given NameLois
Relationship to HeadDaughter
SexF
Color / RaceWhite
Age16
Marital StatusSingle
BirthplaceIowa
1935 Residence (City)Boone city
1935 Residence (County)Boone
Additional Details
Income (1939)0
Highest GradeHs 2
1935 ResidenceSame Place
Birth StateIowa
Birth CountryUnited States
Birthplace (normalized)iowa
Township / WardBoone City
Est. Birth Year~1924

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.

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

Name Relation to head Relative to Lois Age Birth yr
Frances Brown Daughter — 9 ~1931
Alice Brown Daughter — 7 ~1933
Janelle Brown Daughter — 14 ~1926
Lois Brown Daughter — 16 ~1924
Ray Brown Head — 50 ~1890
Hope Brown Son — 13 ~1927
Maurice Brown Son — 19 ~1921
Lloyd Brown Son — 4 ~1936
Cecil Brown Son — 11 ~1929
Ena Brown Spouse — 46 ~1894

Census Appearances

1930
Boone, Iowa
Daughter, age 6
Boone, Iowa · implied b. ~1924 — 9 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Brown
Given Name Lois E
Relationship to Head Daughter
Sex F
Color / Race White
Age 6
Marital Status Single
Birthplace Iowa
Father's Birthplace Ohio
Mother's Birthplace Nebraska
Can Read/Write Yes
Birth State Iowa
Birth Country United States
Birthplace (normalized) iowa
1940
Boone-County, Iowa
Daughter, age 16
Boone-County, Iowa · implied b. ~1924 — 10 household members
Surname Brown
Given Name Lois
Relationship to Head Daughter
Sex F
Color / Race White
Age 16
Marital Status Single
Birthplace Iowa
1935 Residence (City) Boone city
1935 Residence (County) Boone
Income (1939) 0
Highest Grade Hs 2
1935 Residence Same Place
Birth State Iowa
Birth Country United States
Birthplace (normalized) iowa

Model Tree

An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Linked across censuses
Our Model Tree links Lois Brown across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Lois Brown
Daughter · 1940 · age 16 · b. ~1924 · Iowa
★ You are viewing this record
Sibling
Hope Brown
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Brown
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lloyd Brown
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Janelle Brown
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Cecil Brown
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Maurice Brown
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Brown
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1940 US Federal Census — Boone-County, Iowa Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01141-00403)

Line Name Age Relation Occupation Birthplace
41 Zelma Mott 13 Son — Iowa
42 Joyce A. Mott 9 Daughter — Iowa
43 George M. Mott 7 Son — Iowa
44 Harris Pettit 38 Head Baker Iowa
45 Iza Pettit 41 Wife Maid Missouri
46 Claude Pettit 18 Son — Iowa
47 Milo Pettit 17 Son — Iowa
48 Mabel Pettit 13 Daughter — Iowa
49 Ella Fullerson 46 Head — Nebraska
50 Richard Fullerson 20 Son Laborer Iowa
51 Melvin Fullerson 18 Son Carpenter Iowa
52 Ray Fullerson 16 Son — Iowa
53 Bonnie Fullerson 13 Daughter — Iowa
54 William Proctor 26 Lodger Laborer Iowa
55 Pauline Proctor 26 Daughter-in-law — Iowa
56 Connie Proctor 4 Granddaughter — Iowa
57 Dean L. Proctor 2 Grandson — Iowa
58 Richard Proctor 0 Grandson — Iowa
59 Peter Gillian 39 Head Plasterer Nebraska
60 Thelma Gillian 27 Wife — Iowa
61 Peter Jr. Gillian 11 Son — Iowa
62 Varia Nettie 18 Lodger Maid Illinois
63 Ray R. Brown 50 Head Laborer Ohio
64 Ena M. Brown 46 Wife — Nebraska
65 Maurice Brown 19 Son Laborer Iowa
66 Lois Brown THIS PERSON 16 Daughter — Iowa
67 Janelle Brown 14 Daughter — Iowa
68 Hope Brown 13 Son — Iowa
69 Cecil Brown 11 Son — Iowa
70 Frances Brown 9 Daughter — Iowa
71 Alice Brown 7 Daughter — Iowa
72 Lloyd Brown 4 Son — Iowa
73 Walter Northedie 48 Head Laborer Iowa
74 Eunice Northedie 44 Wife Laundress Iowa
75 Joyce Northedie 11 Daughter — Iowa
76 Edward Harriet 32 Head Lineman Iowa
77 Thelma Harriet 32 Wife — Nebraska
78 Edward Jr. Harriet 5 Son — Iowa
79 Thomas Harriet 2 Son — Iowa
80 Ralph Muse 37 Head Operator Power Shovel 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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