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Betty Allen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marshall-County, Iowa
Our Model Tree links this Betty Allen across the 1930 and 1940 US Censuses in Marshall-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 10-person household.
Age 17
b. ~1923
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marshall-County, Iowa |
| Surname | Allen |
| Given Name | Betty Jane |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Marshalltown |
| 1935 Residence (County) | Marshall |
| Additional Details | |
| Occupation | New worker |
| Class of Worker | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | New Worker |
| Township / Ward | Marshalltown |
| Est. Birth Year | ~1923 |
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 Betty | Age | Birth yr |
|---|---|---|---|---|
| Robert Allen | Son | — | 15 | ~1925 |
| Helen Allen | Daughter | — | 11 | ~1929 |
| Clara Allen | Spouse | — | 42 | ~1898 |
| Richard Allen | Son | — | 5 | ~1935 |
| Barbara Allen | Daughter | — | 7 | ~1933 |
| Alvin Allen | Son | — | 13 | ~1927 |
| Mary Allen | Daughter | — | 4 | ~1936 |
| Betty Allen | Daughter | — | 17 | ~1923 |
| Lester Allen | Son | — | 19 | ~1921 |
| Lester Allen | Head | — | 40 | ~1900 |
Census Appearances
1930
Marshall, Iowa
Daughter, age 6
Marshall, Iowa · implied b. ~1924 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Allen |
| Given Name | Betty Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Marshall-County, Iowa
Daughter, age 17
Marshall-County, Iowa · implied b. ~1923 — 10 household members
| Surname | Allen |
| Given Name | Betty Jane |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Marshalltown |
| 1935 Residence (County) | Marshall |
| Occupation | New worker |
| Class of Worker | 0 |
| Highest Grade | 8 |
| 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.
Our Model Tree links Betty Allen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Betty Allen
Daughter · 1940 · age 17 · b. ~1923 · Iowa
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Sibling
Alvin Allen
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Allen
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Allen
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lester Allen
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Allen
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Allen
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Allen
Sibling · 1940 · age 15
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 — Marshall-County, Iowa
Open full size
1940 US Federal Census — Marshall-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01182-00697)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Winona Hooker | 38 | wife | — | Iowa |
| 2 | Larry Wlachwitz | 39 | head | Salesman | Missouri |
| 3 | Lyla Wlachwitz | 37 | wife | — | Iowa |
| 4 | Donald Wlachwitz | 7 | son | — | Iowa |
| 5 | Janet Wlachwitz | 5 | daughter | — | Iowa |
| 6 | Anna Wlachwitz | 65 | mother | — | Missouri |
| 7 | Lewis Bond | 36 | head | Painter | Iowa |
| 8 | Gwendolyn Bond | 40 | wife | — | Iowa |
| 9 | Gottlieb Schneely | 81 | head | — | Switzerland |
| 10 | Angela Schneely | 78 | wife | — | Switzerland |
| 11 | Andrew Nelson | 53 | roomer | Carpenter | Sweden |
| 12 | James Hoffmeier | 68 | roomer | — | Iowa |
| 13 | John Gleke | 55 | head | Caretaker | Iowa |
| 14 | Alma Gleke | 50 | wife | — | England |
| 15 | Alex Jamieson | 61 | head | Captain | Michigan |
| 16 | Edith Jamieson | 56 | wife | — | England |
| 17 | Ralph Fuller | 48 | head | Blacksmith | Iowa |
| 18 | Bessie Fuller | 47 | wife | — | Kansas |
| 19 | Helen Phipps | 19 | daughter | — | Iowa |
| 20 | Darrel Short | 23 | roomer | Trucker | Iowa |
| 21 | Camille Stardust | 28 | roomer | Trucker | Iowa |
| 22 | Lois Holman | 22 | roomer | Waitress | Iowa |
| 23 | I. Glene Holman | 37 | roomer | — | Iowa |
| 24 | Lester Allen | 40 | head | Carman Helper | Iowa |
| 25 | Clara O. Allen | 42 | wife | — | Iowa |
| 26 | Lester Jr. Allen | 19 | son | New Worker | Iowa |
| 27 | Betty Jane Allen THIS PERSON | 17 | daughter | New Worker | Iowa |
| 28 | Robert Allen | 15 | son | — | Iowa |
| 29 | Alvin Allen | 13 | son | — | Iowa |
| 30 | Helen Allen | 11 | daughter | — | Iowa |
| 31 | Barbara Allen | 7 | daughter | — | Iowa |
| 32 | Richard Allen | 5 | son | — | Iowa |
| 33 | Mary Joy Allen | 4 | daughter | — | Iowa |
| 34 | Fred Yates | 60 | head | — | Illinois |
| 35 | Grace T. Yates | 57 | wife | — | Iowa |
| 36 | Ray Keefer | 44 | roomer | Trucker | Iowa |
| 37 | Wilbur Randall | 35 | roomer | Repairman | Iowa |
| 38 | Frances Rathman | 28 | roomer | Bookkeeper | Iowa |
| 39 | George Shaffer | 67 | head | — | Iowa |
| 40 | Bessie Shaffer | 57 | wife | — | Iowa |
Related Census Records
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)