RC
Ruth Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Van-Buren-County, Iowa
Our Model Tree links this Ruth Clark across the 1920, 1930 and 1940 US Censuses in Van-Buren-County, Iowa (XGBoost, ~Confirmed), with identified parents Samuel & James — first a daughter (b.~1909), then head of a 4-person household.
Age 31
b. ~1909
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Van-Buren-County, Iowa |
| Surname | Clark |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Keosauqua |
| 1935 Residence (County) | Van Buren |
| Additional Details | |
| Occupation | Superintendent |
| Industry | Public School |
| Class of Worker | W |
| Hours Worked | 48 |
| Income (1939) | 1000 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Superintendent |
| Township / Ward | Keosauqua |
| Est. Birth Year | ~1909 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ruth | Age | Birth yr |
|---|---|---|---|---|
| Ruth Clark | Daughter | — | 31 | ~1909 |
| Grace Clark | Daughter | — | 26 | ~1914 |
| Kathryn Clark | Head | — | 38 | ~1902 |
| Sam Clark | Son | — | 17 | ~1923 |
Census Appearances
1920
Van Buren, …
Daughter, age 11
Van Buren, Iowa · implied b. ~1909 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Ruth T |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Van Buren, …
Daughter, age 20
Van Buren, Iowa · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Ruth S. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| Age at First Marriage | W |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Teacher |
| Industry | Public school |
| Class of Worker | 9494 |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Van-Buren-County, Iowa
Daughter, age 31
Van-Buren-County, Iowa · implied b. ~1909 — 4 household members
| Surname | Clark |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Keosauqua |
| 1935 Residence (County) | Van Buren |
| Occupation | Superintendent |
| Industry | Public School |
| Class of Worker | W |
| Hours Worked | 48 |
| Income (1939) | 1000 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| 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 Ruth Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Samuel Clark (~0.92 confidence) and father James Clark (~0.92 confidence) and mother Rosanna Clark (~0.92 confidence) and mother Kathryn Clark (~0.60 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.84
Father
Samuel Clark
b. ~1871
Source father
● Household
· direct · ~0.92
Father
James Clark
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Rosanna Clark
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Kathryn Clark
b. ~1902
Source mother
● Household
· direct · ~0.6
This person
Anchor record
Ruth Clark
Daughter · 1940 · age 31 · b. ~1909 · Iowa
★ You are viewing this record
Sibling
Sam Clark
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grace Clark
Sibling · 1940 · age 26
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 — Van-Buren-County, Iowa
Open full size
1940 US Federal Census — Van-Buren-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01208-00768)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Marilyn Cockerell | 5 | Daughter | — | Iowa |
| 42 | Harold Cockerell | 2 | Son | — | Iowa |
| 43 | Linnie Lyons | 42 | Head | Teacher | Iowa |
| 44 | James Simpson | 25 | Head | Foreman | Iowa |
| 45 | Thelma Simpson | 17 | Daughter | — | Iowa |
| 46 | Georgia Samons | 38 | Lodger | Teacher | Iowa |
| 47 | Henry Marriott | 72 | Head | Barber | Iowa |
| 48 | Rosanna Marriott | 70 | Wife | — | Iowa |
| 49 | Celma Regur | 48 | Daughter | Nurse | Iowa |
| 50 | Elwood Adell | 31 | Head | Truck Agent | Iowa |
| 51 | Florence Adell | 30 | Wife | — | Iowa |
| 52 | Anna Peacock | 66 | Head | Cook | Iowa |
| 53 | Tom Brown | 40 | Head | Forestry Service | Iowa |
| 54 | Agnes Brown | 43 | Wife | — | Iowa |
| 55 | Billie Brown | 15 | Son | — | Iowa |
| 56 | Joe Strong | 36 | Head | Lawyer | Iowa |
| 57 | Eleanor Strong | 36 | Wife | — | Iowa |
| 58 | Robt. R. Mcbeth | 64 | Head | Lawyer | Iowa |
| 59 | Henrietta Mcbeth | 63 | Wife | — | Iowa |
| 60 | Lola Rowley | 61 | Sister-in-law | — | Iowa |
| 61 | Kenneth Downard | 29 | Head | Carpenter | Iowa |
| 62 | Marian Downard | 21 | Wife | — | Iowa |
| 63 | Betty Jane Downard | 0 | Daughter | — | Iowa |
| 64 | Nora Richardson | 76 | Head | Clerk | Ohio |
| 65 | Glenn Williams | 54 | Head | Clerk | Iowa |
| 66 | Ethel Williams | 52 | Wife | — | Indiana |
| 67 | Forest Dunshee | 47 | Head | Salesman | Nebraska |
| 68 | Bernice Dunshee | 39 | Wife | — | Iowa |
| 69 | Wayne Davidson | None | Head | — | — |
| 70 | Doris Davidson | None | Wife | — | — |
| 71 | Ray Overman | 57 | Head | Proprietor | Iowa |
| 72 | Phyllis Overman | 55 | Wife | — | Iowa |
| 73 | George Carnahan | 43 | Head | Manager | Missouri |
| 74 | Ethel Carnahan | 40 | Wife | — | South Dakota |
| 75 | Elva Carnahan | 20 | Daughter | — | Iowa |
| 76 | Cecil Carnahan | 17 | Daughter | — | Iowa |
| 77 | Kathryn Clark | 38 | Head | — | Iowa |
| 78 | Ruth Clark THIS PERSON | 31 | Daughter | Superintendent | Iowa |
| 79 | Grace Clark | 26 | Daughter | Teacher | Iowa |
| 80 | Sam Jr. Clark | 17 | Son | Attendant | Iowa |
Pedigree Summary
Ruth + 2 siblings
Gen 1 · 4 parents
~0.84
Max depth 4 (1900–1950 window)
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)