CC
Clara Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Warren-County, Iowa
Our Model Tree links this Clara Clark across the 1930 and 1940 US Censuses in Warren-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 7-person household.
Age 13
b. ~1927
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Warren-County, Iowa |
| Surname | Clark |
| Given Name | Clara |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | White Breast Twp |
| 1935 Residence (County) | Warren |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | White Breast Twp |
| Est. Birth Year | ~1927 |
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 Clara | Age | Birth yr |
|---|---|---|---|---|
| Lawrence Clark | Son | — | 24 | ~1916 |
| Elsie Clark | Spouse | — | 42 | ~1898 |
| Clara Clark | Daughter | — | 13 | ~1927 |
| Ardys Clark | Daughter | — | 9 | ~1931 |
| G Clark | Head | — | 49 | ~1891 |
| Loral Clark | Son | — | 16 | ~1924 |
| Lewis Clark | Daughter | — | 6 | ~1934 |
Census Appearances
1930
Warren, Iowa
Daughter, age 3
Warren, Iowa · implied b. ~1927 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Clara A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Warren-County, Iowa
Daughter, age 13
Warren-County, Iowa · implied b. ~1927 — 7 household members
| Surname | Clark |
| Given Name | Clara |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | White Breast Twp |
| 1935 Residence (County) | Warren |
| Highest Grade | No 7 |
| 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 Clara Clark across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Clara Clark
Daughter · 1940 · age 13 · b. ~1927 · Iowa
★ You are viewing this record
Sibling
Lewis Clark
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ardys Clark
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Loral Clark
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Clark
Sibling · 1940 · age 24
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 — Warren-County, Iowa
Open full size
1940 US Federal Census — Warren-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01210-00546)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Roy Gearing | 45 | Head | Farm Labor | Iowa |
| 2 | Frances Gearing | 14 | Daughter | — | Iowa |
| 3 | Darell Gearing | 11 | Son | — | Iowa |
| 4 | Ivan Gearing | 9 | Son | — | Iowa |
| 5 | Rosaline Gearing | 7 | Daughter | — | Iowa |
| 6 | George Gearing | 6 | Son | — | Iowa |
| 7 | Franklin Gearing | 4 | Son | — | Iowa |
| 8 | Kathrine Gearing | 1 | Daughter | — | Iowa |
| 9 | Kenneth D. Gearing | 0 | Son | — | Iowa |
| 10 | H. L. Lovell | 76 | Father-in-law | — | Indiana |
| 11 | Henry Gearing | 64 | Cousin | Farm Labor | Iowa |
| 12 | Ernest Thomson | 44 | Head | Farmer | Iowa |
| 13 | Alice Thomson | 37 | Wife | Housewife | Iowa |
| 14 | Lysle Thomson | 15 | Son | — | Iowa |
| 15 | Gayle Thomson | 14 | Daughter | — | Iowa |
| 16 | Neil Thomson | 11 | Son | — | Iowa |
| 17 | G. T. Clark | 49 | Head | Farmer | Iowa |
| 18 | Elsie D. Clark | 42 | Wife | Housewife | Iowa |
| 19 | Lawrence Clark | 24 | Son | Farm Labor | Iowa |
| 20 | Loral Clark | 16 | Son | Farm Labor | Iowa |
| 21 | Clara Clark THIS PERSON | 13 | Daughter | — | Iowa |
| 22 | Ardys Clark | 9 | Daughter | — | Iowa |
| 23 | Lewis Clark | 6 | Daughter | — | Iowa |
| 24 | Fred Schader | 58 | Head | Farmer | Iowa |
| 25 | Effie B. Schader | 54 | Wife | Housewife | Iowa |
| 26 | Ivan Schader | 21 | Son | Farm Labor | Iowa |
| 27 | E. E. Williams | 48 | Head | Farmer | Kansas |
| 28 | Bonnie L. Williams | 32 | Wife | Housewife | Iowa |
| 29 | Norma Williams | 14 | Daughter | — | Iowa |
| 30 | Natalie Williams | 12 | Daughter | — | Iowa |
| 31 | M. H. Hadley | 66 | Head | Farmer | Iowa |
| 32 | Ella Hadley | 62 | Wife | Housewife | Iowa |
| 33 | Kemp Hadley | 27 | Son | Farmer | Iowa |
| 34 | J. L. Goode | 45 | Head | Farmer | Iowa |
| 35 | M. L. Goode | 41 | Wife | Housewife | Iowa |
| 36 | Merl Goode | 26 | Son | Farm Labor | Iowa |
| 37 | Max Goode | 21 | Son | Farm Labor | Iowa |
| 38 | Maynard Goode | 14 | Son | — | Iowa |
| 39 | Robert E. Freeman | 21 | Step son | Truck Driver | Iowa |
| 40 | Ester Freeman | 12 | Step 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)