RC
Ruth Cooper — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Washington-County, Oklahoma
Our Model Tree links this Ruth Cooper across the 1930 and 1940 US Censuses in Washington-County, Oklahoma (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 9-person household.
Age 15
b. ~1925
Female
Daughter
Born: Oklahoma
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Oklahoma |
| Surname | Cooper |
| Given Name | Ruth Ann |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Highest Grade | Hs 1 |
| 1935 Residence | Oklahoma |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
| Township / Ward | Jefferson Township |
| Est. Birth Year | ~1925 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ruth | Age | Birth yr |
|---|---|---|---|---|
| Peter Cooper | Son | — | 11 | ~1929 |
| Ruth Cooper | Daughter | — | 15 | ~1925 |
| Evelyn Cooper | Daughter | — | 14 | ~1926 |
| John Cooper | Son | — | 9 | ~1931 |
| Patricia Cooper | Daughter | — | 7 | ~1933 |
| Peter Cooper | Head | — | 36 | ~1904 |
| Lucille Cooper | Spouse | — | 33 | ~1907 |
| Doris Cooper | Daughter | — | 2 | ~1938 |
| Robert Cooper | Son | — | 1 | ~1939 |
Census Appearances
1930
Washington, Oklahoma
Daughter, age 5
Washington, Oklahoma · implied b. ~1925 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Ruthanna |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Oklahoma |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1940
Washington-County, Oklahoma
Daughter, age 15
Washington-County, Oklahoma · implied b. ~1925 — 9 household members
| Surname | Cooper |
| Given Name | Ruth Ann |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Washington |
| Highest Grade | Hs 1 |
| 1935 Residence | Oklahoma |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
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 Cooper across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ruth Cooper
Daughter · 1940 · age 15 · b. ~1925 · Oklahoma
★ You are viewing this record
Sibling
Doris Cooper
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Cooper
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evelyn Cooper
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Cooper
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Cooper
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Peter Cooper
Sibling · 1940 · age 11
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 — Washington-County, Oklahoma
Open full size
1940 US Federal Census — Washington-County, Oklahoma
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03339-00705)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Rex Sharpton | 34 | head | Time Machine Operator | Missouri |
| 2 | Lenore E. Sharpton | 30 | wife | — | Indiana |
| 3 | Wayne Sharpton | 7 | son | — | Oklahoma |
| 4 | Gerald Sharpton | 2 | son | — | Oklahoma |
| 5 | John C. Anderson | 37 | head | Foreman | Missouri |
| 6 | Veral A. Anderson | 35 | wife | — | Missouri |
| 7 | Leonard Anderson | 17 | son | — | Missouri |
| 8 | Alfred Anderson | 16 | son | — | Oklahoma |
| 9 | Everette Anderson | 9 | son | — | Oklahoma |
| 10 | Clarice Anderson | 6 | daughter | — | Oklahoma |
| 11 | James S. Wilson | 52 | head | Finish Operator | Alabama |
| 12 | Ada Wilson | 47 | wife | — | Oklahoma |
| 13 | Helen Wilson | 15 | daughter | — | Oklahoma |
| 14 | Marjorie Wilson | 14 | daughter | — | Oklahoma |
| 15 | Billy Jim Wilson | 10 | son | — | Oklahoma |
| 16 | Shirley Wilson | 4 | daughter | — | Oklahoma |
| 17 | Joe H. Clement | 43 | head | Clerk | Washington |
| 18 | Peggy J. Clement | 14 | daughter | — | Oklahoma |
| 19 | Dora Nell Clement | 12 | daughter | — | Oklahoma |
| 20 | Frances W. Clement | 32 | niece | Housekeeper | Louisiana |
| 21 | Charles F. Schultz | 67 | head | Farmer | Minnesota |
| 22 | Mary A. Schultz | 52 | wife | — | Minnesota |
| 23 | Melvin Schultz | 14 | son | — | Oklahoma |
| 24 | Milton P. Vanatta | 57 | head | Laborer | Kansas |
| 25 | Jennie Vanatta | 51 | wife | — | Kansas |
| 26 | Lawrence E. Vanatta | 17 | son | — | Oklahoma |
| 27 | Peter M. Cooper | 36 | head | Crane Operator | Missouri |
| 28 | Lucille L. Cooper | 33 | wife | — | Oklahoma |
| 29 | Ruth Ann Cooper THIS PERSON | 15 | daughter | — | Oklahoma |
| 30 | Evelyn L. Cooper | 14 | daughter | — | Oklahoma |
| 31 | Peter M. Jr. Cooper | 11 | son | — | Oklahoma |
| 32 | John Charles Cooper | 9 | son | — | Oklahoma |
| 33 | Patricia Lou Cooper | 7 | daughter | — | Oklahoma |
| 34 | Doris Elaine Cooper | 2 | daughter | — | Oklahoma |
| 35 | Robert L. Cooper | 1 | son | — | Oklahoma |
| 36 | Melvin H. Bonham | 35 | head | Pumper | Oklahoma |
| 37 | Elsie Bonham | 35 | wife | — | Oklahoma |
| 38 | Ira Keithley | 62 | head | Farmer | Missouri |
| 39 | Rosie Keithley | 44 | wife | — | Texas |
| 40 | Harry Armstrong | 47 | head | Pasture Farmer | Oklahoma |
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)