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Betty Brown — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wapello-County, Iowa
Our Model Tree links this Betty Brown across the 1930 and 1940 US Censuses in Wapello-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 11-person household.
Age 14
b. ~1926
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wapello-County, Iowa |
| Surname | Brown |
| Given Name | Betty |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Blakesburg |
| 1935 Residence (County) | Wapello |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Eldon City |
| Est. Birth Year | ~1926 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Betty | Age | Birth yr |
|---|---|---|---|---|
| Betty Brown | Daughter | — | 14 | ~1926 |
| Edith Brown | Daughter | — | 17 | ~1923 |
| Lucille Brown | Daughter | — | 1 | ~1939 |
| Effie Brown | Daughter | — | 15 | ~1925 |
| William Brown | Head | — | 51 | ~1889 |
| Charles Brown | Son | — | 13 | ~1927 |
| Lawrence Brown | Son | — | 5 | ~1935 |
| William Brown | Son | — | 2 | ~1938 |
| Jimmie Brown | Son | — | 7 | ~1933 |
| Thomas Brown | Son | — | 10 | ~1930 |
| Rosetta Brown | Spouse | — | 37 | ~1903 |
Census Appearances
1930
Wapello, Iowa
Daughter, age 3
Wapello, Iowa · implied b. ~1927 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Betty |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| 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
Wapello-County, Iowa
Daughter, age 14
Wapello-County, Iowa · implied b. ~1926 — 11 household members
| Surname | Brown |
| Given Name | Betty |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Blakesburg |
| 1935 Residence (County) | Wapello |
| Highest Grade | No 6 |
| 1935 Residence | Iowa |
| 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.
Our Model Tree links Betty Brown across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Betty Brown
Daughter · 1940 · age 14 · b. ~1926 · Iowa
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Sibling
Effie Brown
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lucille Brown
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Brown
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Brown
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Brown
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jimmie Brown
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Brown
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edith Brown
Sibling · 1940 · age 17
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 — Wapello-County, Iowa
Open full size
1940 US Federal Census — Wapello-County, Iowa
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01209-01231)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Menne | 48 | Wife | — | Indiana |
| 3 | Arthur Campbell | 51 | Head | Engineer | Iowa |
| 4 | Ferne Campbell | 42 | Wife | — | Iowa |
| 5 | Duane Campbell | 16 | Son | — | Iowa |
| 6 | William Front | 54 | Head | Conductor | Iowa |
| 7 | Nellie Front | 40 | Wife | — | Missouri |
| 8 | Eugene Front | 20 | Son | Apprentice | Iowa |
| 9 | Phoebe Front | 20 | Stepdaughter | 28 | Iowa |
| 10 | Audrey Front | 16 | Stepdaughter | — | Iowa |
| 11 | Velma Front | 13 | Stepdaughter | — | Iowa |
| 12 | Jerry Gilbert | 35 | Head | Bridge Carp. | Iowa |
| 13 | Grace Gilbert | 45 | Wife | — | Iowa |
| 14 | Wesley Gilbert | 24 | Son | — | Iowa |
| 15 | Hazel Gilbert | 22 | Daughter | — | Iowa |
| 16 | Ruth Gilbert | 13 | Daughter | — | Iowa |
| 17 | Charley Baker | 63 | Head | — | Missouri |
| 18 | Cora Baker | 61 | Wife | — | Iowa |
| 19 | Willard Baker | 42 | Son | — | Iowa |
| 20 | Charles Gilliland | 20 | Grandson | Ditch Digging | Iowa |
| 21 | Christina Baker | 10 | Granddaughter | — | Iowa |
| 22 | James Essary | 68 | Head | — | Missouri |
| 23 | Rachel Essary | 59 | Wife | — | Missouri |
| 24 | Richard Essary | 19 | Son | — | Iowa |
| 25 | Harley Essary | 22 | Son | — | Iowa |
| 26 | Audrey Essary | 15 | Daughter | — | Missouri |
| 28 | William Brown | 51 | Head | Laborer | Missouri |
| 29 | Rosetta Brown | 37 | Wife | — | Minnesota |
| 30 | Edith Brown | 17 | Daughter | — | Iowa |
| 31 | Effie Brown | 15 | Daughter | — | Iowa |
| 32 | Betty Brown THIS PERSON | 14 | Daughter | — | Iowa |
| 33 | Charles Brown | 13 | Son | — | Iowa |
| 34 | Thomas Brown | 10 | Son | — | Iowa |
| 35 | Jimmie Brown | 7 | Son | — | Iowa |
| 36 | Lawrence Brown | 5 | Son | — | Iowa |
| 37 | William Brown | 2 | Son | — | Iowa |
| 38 | Lucille Brown | 1 | Daughter | — | Iowa |
| 39 | Emery Roberts | 49 | Head | Machinist Helper | Missouri |
| 40 | Arrahwah Roberts | 21 | Daughter | — | Missouri |
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)