EC
Edna Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Woodbury-County, Iowa
Our Model Tree links this Edna Clark across the 1930 and 1940 US Censuses in Woodbury-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1906), then head of a 7-person household.
Age 34
b. ~1906
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Woodbury-County, Iowa |
| Surname | Clark |
| Given Name | Edna |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Woodbury Twp |
| 1935 Residence (County) | Woodbury |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Woodbury Twp |
| Est. Birth Year | ~1906 |
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 Edna | Age | Birth yr |
|---|---|---|---|---|
| Genevieve Clark | Daughter | — | 12 | ~1928 |
| Edna Clark | Spouse | — | 34 | ~1906 |
| Dorothy Clark | Daughter | — | 10 | ~1930 |
| Colleen Clark | Daughter | — | 14 | ~1926 |
| Thomas Clark | Son | — | 8 | ~1932 |
| Lorraine Clark | Daughter | — | 11 | ~1929 |
| Russell Clark | Head | — | 33 | ~1907 |
Census Appearances
1930
Woodbury, Iowa
Spouse, age 24
Woodbury, Iowa · implied b. ~1906 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Edna |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 19 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Woodbury-County, Iowa
Spouse, age 34
Woodbury-County, Iowa · implied b. ~1906 — 7 household members
| Surname | Clark |
| Given Name | Edna |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Woodbury Twp |
| 1935 Residence (County) | Woodbury |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 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 Edna Clark across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Edna Clark
Spouse · 1940 · age 34 · b. ~1906 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Woodbury-County, Iowa
Open full size
1940 US Federal Census — Woodbury-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01216-01011)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles A. Oehlerking | 54 | Head | Farmer | Germany |
| 2 | Dora Oehlerking | 49 | Wife | — | Nebraska |
| 3 | Gladys Oehlerking | 16 | Daughter | — | Iowa |
| 4 | Charles H. Oehlerking | 11 | Son | — | Iowa |
| 5 | Elmer G. Olson | 67 | Head | Farmer | Kansas |
| 6 | Della Olson | 58 | Wife | — | Missouri |
| 7 | Tony Chicken | 46 | Head | Farmer | Poland |
| 8 | Martin Morley | 46 | Head | Farmer | Minnesota |
| 9 | Viola Morley | 36 | Wife | — | Iowa |
| 10 | Viola Morley | 17 | Daughter | — | Iowa |
| 11 | Avon Morley | 15 | Daughter | — | Iowa |
| 12 | Mary Ellen Morley | 14 | Daughter | — | Iowa |
| 13 | Robert Morley | 11 | Son | — | Iowa |
| 14 | Virginia Morley | 10 | Daughter | — | Iowa |
| 15 | Eloise Morley | 7 | Daughter | — | Iowa |
| 16 | Herbert Morley | 6 | Son | — | Iowa |
| 17 | Richard Morley | 1 | Son | — | Iowa |
| 18 | John Davis | 37 | Head | Farmer | Iowa |
| 19 | Lena Davis | 33 | Wife | — | Arkansas |
| 20 | Leo Davis | 16 | Son | — | Iowa |
| 21 | Edgar Davis | 14 | Daughter | — | Iowa |
| 22 | Lyle Davis | 9 | Son | — | Iowa |
| 23 | Shirley Davis | 7 | Daughter | — | Iowa |
| 24 | John Henry Davis | 2 | Son | — | Iowa |
| 25 | Roger A. Davis | 1 | Son | — | Iowa |
| 26 | John Matthews | 60 | Head | Farmer | Tennessee |
| 27 | Harlan Spry | 27 | Head | Farmer | Iowa |
| 28 | Phyllis Spry | 19 | Wife | — | Nebraska |
| 29 | Leigh R. Westfall | 46 | Head | Farmer | Iowa |
| 30 | Lillian Westfall | 42 | Wife | — | South Dakota |
| 31 | Virginia Westfall | 13 | Daughter | — | Iowa |
| 32 | John Westfall | 11 | Son | — | Iowa |
| 33 | Marjorie Westfall | 7 | Daughter | — | Iowa |
| 34 | Russell Clark | 33 | Head | Farmer | Iowa |
| 35 | Edna Clark THIS PERSON | 34 | Wife | — | Iowa |
| 36 | Colleen Clark | 14 | Daughter | — | Iowa |
| 37 | Genevieve Clark | 12 | Daughter | — | Iowa |
| 38 | Lorraine Clark | 11 | Daughter | — | Iowa |
| 39 | Dorothy L. Clark | 10 | Daughter | — | Iowa |
| 40 | Thomas Clark | 8 | 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)