DC
Doris Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mills-County, Iowa
Our Model Tree links this Doris Clark across the 1930 and 1940 US Censuses in Mills-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 7-person household.
Age 11
b. ~1929
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mills-County, Iowa |
| Surname | Clark |
| Given Name | Doris M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Hastings Town |
| 1935 Residence (County) | Mills |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Hastings Town |
| 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Doris | Age | Birth yr |
|---|---|---|---|---|
| Doris Clark | Daughter | — | 11 | ~1929 |
| Hazel Clark | Daughter | — | 9 | ~1931 |
| Acil Clark | Son | — | 3 | ~1937 |
| Betty Clark | Daughter | — | 7 | ~1933 |
| George Clark | Son | — | 10 | ~1930 |
| George Clark | Head | — | 36 | ~1904 |
| Ethel Clark | Spouse | — | 32 | ~1908 |
Census Appearances
1930
Mills, Iowa
Daughter, age 1
Mills, Iowa · implied b. ~1929 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Doris M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Mills-County, Iowa
Daughter, age 11
Mills-County, Iowa · implied b. ~1929 — 7 household members
| Surname | Clark |
| Given Name | Doris M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Hastings Town |
| 1935 Residence (County) | Mills |
| Highest Grade | No 5 |
| 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 Doris Clark across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Doris Clark
Daughter · 1940 · age 11 · b. ~1929 · Iowa
★ You are viewing this record
Sibling
Betty Clark
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hazel Clark
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Clark
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Acil Clark
Sibling · 1940 · age 3
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 — Mills-County, Iowa
Open full size
1940 US Federal Census — Mills-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01183-00233)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Abbie Mcdowell | 76 | Head | — | Iowa |
| 2 | Robert C. Hatten | 26 | Head | Day Laborer | Montana |
| 3 | Kathryn Hatten | 24 | Wife | — | Iowa |
| 4 | Richard R. Hatten | 1 | Son | — | Iowa |
| 5 | Dannie C. Hatten | 0 | Son | — | Iowa |
| 6 | George E. Clark | 36 | Head | Day Laborer | Illinois |
| 7 | Ethel Clark | 32 | Wife | — | Iowa |
| 8 | Doris M. Clark THIS PERSON | 11 | Daughter | — | Iowa |
| 9 | George Jr. Clark | 10 | Son | — | Iowa |
| 10 | Hazel M. Clark | 9 | Daughter | — | Iowa |
| 11 | Betty J. Clark | 7 | Daughter | — | Iowa |
| 12 | Acil L. Clark | 3 | Son | — | Iowa |
| 13 | William Clark | 39 | Head | Ditcher | Illinois |
| 14 | Elma Clark | 26 | Wife | — | Iowa |
| 15 | Ronald Clark | 4 | Son | — | Iowa |
| 16 | Frederick Clark | 1 | Son | — | Iowa |
| 17 | J. Lewis Achenbach | 72 | Head | Farm Laborer | Iowa |
| 18 | Julia Achenbach | 66 | Wife | — | Iowa |
| 19 | Allie Largent | 51 | Head | Housework | Oklahoma |
| 20 | Jack Largent | 17 | Son | Farm Laborer | Oklahoma |
| 21 | Della L. Largent | 14 | Daughter | — | Oklahoma |
| 22 | Elloise Largent | 11 | Daughter | — | Oklahoma |
| 23 | Carl Hodge | 46 | Head | Farmer | Iowa |
| 24 | Lois Hodge | 38 | Wife | — | Iowa |
| 25 | Donald Hodge | 11 | Son | — | Iowa |
| 26 | Roxana Hodge | 4 | Daughter | — | Iowa |
| 27 | William M. Courtier | 62 | Head | Carpenter | Iowa |
| 28 | Marie M. Courtier | 59 | Wife | — | Iowa |
| 29 | Charles Courtier | 36 | Head | Carpenter | Iowa |
| 30 | Cleo Courtier | 35 | Wife | — | Missouri |
| 31 | James H. Courtier | 7 | Son | — | Iowa |
| 32 | Arnold D. Courtier | 2 | Son | — | Iowa |
| 33 | Shelton Campbell | 37 | Head | Farm Laborer | Illinois |
| 34 | Leona Mae Campbell | 9 | Daughter | — | Iowa |
| 35 | Beverly Campbell | 3 | Daughter | — | Iowa |
| 36 | Dwight D. Fellows | 35 | Head | School Teacher | Iowa |
| 37 | Margaret Fellows | 33 | Wife | — | Iowa |
| 38 | Phallee Fellows | 10 | Son | — | Iowa |
| 39 | Robert Fellows | 7 | Son | — | Iowa |
| 40 | Ruth Fellows | 5 | Daughter | — | 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)