BT
Betty Thompson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Adams-County, Iowa
Our Model Tree links this Betty Thompson across the 1930 and 1940 US Censuses in Adams-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 11-person household.
Age 11
b. ~1929
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Adams-County, Iowa |
| Surname | Thompson |
| Given Name | Betty |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Adams |
| Additional Details | |
| Highest Grade | 5 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Douglas |
| Est. Birth Year | ~1929 |
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 |
|---|---|---|---|---|
| Patty Thompson | Daughter | — | ~1940 | |
| John Thompson | Head | — | 41 | ~1899 |
| Harold Thompson | Son | — | 3 | ~1937 |
| Luther Thompson | Son | — | 15 | ~1925 |
| Leroy Thompson | Son | — | 18 | ~1922 |
| Betty Thompson | Daughter | — | 11 | ~1929 |
| Richard Thompson | Son | — | 13 | ~1927 |
| June Thompson | Daughter | — | 7 | ~1933 |
| Ernest Thompson | Son | — | 9 | ~1931 |
| Bobby Thompson | Son | — | 5 | ~1935 |
| Alice Thompson | Spouse | — | 32 | ~1908 |
Census Appearances
1930
Adams, Iowa
Daughter, age 1
Adams, Iowa · implied b. ~1929 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Betty Lee |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Can Read/Write | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Adams-County, Iowa
Daughter, age 11
Adams-County, Iowa · implied b. ~1929 — 11 household members
| Surname | Thompson |
| Given Name | Betty |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Adams |
| Highest Grade | 5 |
| 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 Thompson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Betty Thompson
Daughter · 1940 · age 11 · b. ~1929 · Iowa
★ You are viewing this record
Sibling
Bobby Thompson
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Thompson
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Luther Thompson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ernest Thompson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patty Thompson
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Thompson
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
June Thompson
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leroy Thompson
Sibling · 1940 · age 18
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 — Adams-County, Iowa
Open full size
1940 US Federal Census — Adams-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01136-00486)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Anna Bell Sigler | 67 | Wife | — | Iowa |
| 42 | Ralph L. (X) Long | 58 | Head | Farmer | Iowa |
| 43 | Velma Long | 48 | Wife | — | Iowa |
| 44 | Lorne H. Loney | 26 | Head | Operator | Iowa |
| 45 | Ada (X) Loney | 22 | Wife | — | Missouri |
| 46 | Ruth E. Loney | 5 | Daughter | — | Iowa |
| 47 | Larry L. Loney | 1 | Daughter | — | Iowa |
| 48 | Lou (X) Hoffman | 22 | Head | Labor | Iowa |
| 49 | Viola Hoffman | 20 | Wife | — | Iowa |
| 50 | Mary L. Hoffman | 1 | Daughter | — | Iowa |
| 51 | Donna D. Hoffman | 0 | Daughter | — | Iowa |
| 52 | Jim (X) Mckinley | 55 | Head | Miner | Iowa |
| 53 | Merl Mckinley | 16 | Son | Miner | Iowa |
| 54 | Ray (X) Medders | 34 | Head | Miner | Iowa |
| 55 | Grace Medders | 25 | Wife | — | Iowa |
| 56 | Paul Jr. Medders | 4 | Son | — | Iowa |
| 57 | Robert L. (X) Devereaux | 60 | Head | Farm | Iowa |
| 58 | Catherine Devereaux | 49 | Wife | — | Iowa |
| 59 | Nicholas Devereaux | 18 | Son | — | Iowa |
| 60 | Monica Devereaux | 11 | Daughter | — | Iowa |
| 61 | John Thompson | 41 | Head | Miner | Iowa |
| 62 | Alice (X) Thompson | 32 | Wife | — | Iowa |
| 63 | Leroy Thompson | 18 | Son | Miner | Iowa |
| 64 | Luther Thompson | 15 | Son | — | Iowa |
| 65 | Richard Thompson | 13 | Son | — | Iowa |
| 66 | Betty Thompson THIS PERSON | 11 | Daughter | — | Iowa |
| 67 | Ernest Thompson | 9 | Son | — | Iowa |
| 68 | June Thompson | 7 | Daughter | — | Iowa |
| 69 | Bobby Thompson | 5 | Son | — | Iowa |
| 70 | Harold Thompson | 3 | Son | — | Iowa |
| 71 | Patty Thompson | 0 | Daughter | — | Iowa |
| 72 | G. F. Scroggs | 41 | Head | Miner | Iowa |
| 73 | Lena (X) Scroggs | 36 | Wife | — | Iowa |
| 74 | Lois Scroggs | 16 | Daughter | — | Nebraska |
| 75 | Junior Scroggs | 13 | Son | — | Iowa |
| 76 | H. Homer Wainwright | 41 | Head | Operator | Iowa |
| 77 | Ruth Wainwright | 38 | Wife | — | Iowa |
| 78 | Charles Wainwright | 15 | Son | Labor | Iowa |
| 79 | Albert Wainwright | 13 | Son | — | Iowa |
| 80 | Harold Wainwright | 10 | Son | — | Iowa |
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)