AC
Agnes Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Woodbury-County, Iowa
Our Model Tree links this Agnes Clark across the 1930 and 1940 US Censuses in Woodbury-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1899), then head of a 8-person household.
Age 41
b. ~1899
Female
Spouse
Born: Nebraska
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Woodbury-County, Iowa |
| Surname | Clark |
| Given Name | Agnes |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Nebraska |
| 1935 Residence (City) | Sioux City |
| 1935 Residence (County) | Woodbury |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
| Township / Ward | Sioux City |
| Est. Birth Year | ~1899 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Agnes | Age | Birth yr |
|---|---|---|---|---|
| Ira Clark | Head | — | 48 | ~1892 |
| Betty Clark | Daughter | — | 17 | ~1923 |
| Shirley Clark | Daughter | — | 3 | ~1937 |
| Barbara Listman | Daughter | — | 8 | ~1932 |
| Bonnie Clark | Daughter | — | 8 | ~1932 |
| Arnold Feirfeil | Son | — | 33 | ~1907 |
| Ira Clark | Son | — | 18 | ~1922 |
| Agnes Clark | Spouse | — | 41 | ~1899 |
Census Appearances
1930
Woodbury, Iowa
Other, age 31
Woodbury, Iowa · implied b. ~1899 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Agnes |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Nebraska |
| Age at First Marriage | 21 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Nebraska |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1940
Woodbury-County, Iowa
Spouse, age 41
Woodbury-County, Iowa · implied b. ~1899 — 8 household members
| Surname | Clark |
| Given Name | Agnes |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Nebraska |
| 1935 Residence (City) | Sioux City |
| 1935 Residence (County) | Woodbury |
| Class of Worker | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
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 Agnes Clark across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Agnes Clark
Spouse · 1940 · age 41 · b. ~1899 · Iowa
★ You are viewing this record
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-t0627-01215-00866)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Julia Strand | 48 | Head | — | Germany |
| 2 | Stanley Strand | 22 | Son | New Worker | Iowa |
| 3 | Clifford Strand | 20 | Son | Repairman | Iowa |
| 4 | Virginia Hallbeck | 2 | Daughter | — | Iowa |
| 5 | Hope Springer | 21 | Daughter | Coil Winder | Iowa |
| 6 | Florence Furrer | 26 | Head | New Worker | Iowa |
| 7 | Robert Furrer | 3 | Son | — | Iowa |
| 8 | Darrel Furrer | 0 | Son | — | Iowa |
| 9 | Anna Furrer | 46 | Mother | — | South Dakota |
| 10 | Ira Clark | 48 | Head | Truck Driver | South Dakota |
| 11 | Agnes Clark THIS PERSON | 41 | Wife | — | Nebraska |
| 12 | Ira Jr. Clark | 18 | Son | New Worker | Iowa |
| 13 | Betty Jane Clark | 17 | Daughter | — | Iowa |
| 14 | Bonnie Jean Clark | 8 | Daughter | — | Iowa |
| 15 | Shirley Mae Clark | 3 | Daughter | — | Iowa |
| 16 | Barbara Listman | 8 | Daughter | — | Iowa |
| 17 | Arnold Feirfeil | 33 | Son | Truck Driver | Iowa |
| 18 | Holden Cadwell | 28 | Head | Laborer | South Dakota |
| 19 | Margaret Cadwell | 23 | Wife | — | Iowa |
| 20 | Isabel Wacker | 40 | Sister-in-law | — | Iowa |
| 21 | Jo Anne Wacker | 10 | Niece | — | Minnesota |
| 22 | Herbert Willer | 34 | Head | General Trucker | Iowa |
| 23 | Beula Willer | 30 | Wife | — | Iowa |
| 24 | Gerrard Harwood | 22 | Head | Baker'S Helper | Iowa |
| 25 | Hilda Ann Harwood | 18 | Wife | — | Iowa |
| 26 | Elmer Weiland | 36 | Head | Railroad Engineer | South Dakota |
| 27 | Mary Weiland | 35 | Wife | Cashier | Nebraska |
| 28 | Clyde W. Caselton | 52 | Head | Com. Labor | Nebraska |
| 29 | Vera E. Caselton | 48 | Wife | — | Iowa |
| 30 | Delores Caselton | 13 | Daughter | — | Iowa |
| 31 | Ruth Caselton | 10 | Daughter | — | Iowa |
| 32 | Bonnie Caselton | 4 | Daughter | — | Iowa |
| 33 | Roy H. Cooren | 50 | Head | Contractor | South Dakota |
| 34 | Bessie Cooren | 49 | Wife | Cook | Minnesota |
| 35 | Raymond Cooren | 27 | Son | Labor | North Dakota |
| 36 | Richard D. Cooren | 60 | Brother | Contractor | Michigan |
| 37 | Celesta Tallada | 86 | Mother-in-law | — | Pennsylvania |
| 38 | Perry Krouse | 57 | Head | Com. Labor | Iowa |
| 39 | Carrie Krouse | 45 | Wife | — | Nebraska |
| 40 | Delbert Krouse | 24 | Son | New Worker | 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)