RC
Ruth Cook — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Kansas
Our Model Tree links this Ruth Cook across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Kansas (XGBoost, ~Confirmed), with identified parents Charles & Charley — first a daughter (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Female
Daughter
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Kansas |
| Surname | Cook |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Rock Creek Twp |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | grade teacher |
| Industry | Public school |
| Class of Worker | GW |
| Hours Worked | 32 |
| Income (1939) | 460 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Grade Teacher |
| Township / Ward | Rock Creek Twp |
| Est. Birth Year | ~1918 |
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 Cook | Daughter | — | 22 | ~1918 |
| Elsie Cook | Spouse | — | 43 | ~1897 |
| Charley Cook | Head | — | 80 | ~1860 |
| Robert Cook | Son | — | 18 | ~1922 |
Census Appearances
1920
Jefferson, Kansas
Daughter, age 3
Jefferson, Kansas · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Ruth Irene |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Kansas |
| Speaks English | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Jefferson, Kansas
Daughter, age 13
Jefferson, Kansas · implied b. ~1917 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Ruth L. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Kansas |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Jefferson-County, Kansas
Daughter, age 22
Jefferson-County, Kansas · implied b. ~1918 — 4 household members
| Surname | Cook |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Rock Creek Twp |
| 1935 Residence (County) | Jefferson |
| Occupation | grade teacher |
| Industry | Public school |
| Class of Worker | GW |
| Hours Worked | 32 |
| Income (1939) | 460 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 Cook across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Cook (~0.92 confidence) and father Charley Cook (~0.92 confidence) and mother Elsie Cook (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Cook
b. ~1860
Source father
● Household
· direct · ~0.92
Father
Charley Cook
b. ~1860
Source father
● Household
· direct · ~0.92
Mother
Elsie Cook
b. ~1897
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ruth Cook
Daughter · 1940 · age 22 · b. ~1918 · Kansas
★ You are viewing this record
Sibling
Robert Cook
Sibling · 1940 · age 18
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 — Jefferson-County, Kansas
Open full size
1940 US Federal Census — Jefferson-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01236-00263)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Addison R Bowen | 49 | Head | Farmer | Missouri |
| 42 | Ellen Bowen | 46 | Wife | Housewife | Kansas |
| 43 | Elworth Bowen | 23 | Son | Farmer | Kansas |
| 44 | Everett Bowen | 22 | Son | Farmer | Kansas |
| 45 | Lenora Bowen | 18 | Daughter | Housewife | Missouri |
| 46 | Roscoe Mongold | 50 | Head | Farmer | Kansas |
| 47 | Katherine Mongold | 46 | Wife | Housewife | Texas |
| 48 | Roland French | 46 | Head | Farmer | Nebraska |
| 49 | Mae French | 45 | Wife | Housewife | Kansas |
| 50 | George Knowlton | 54 | Head | Farmer | Kansas |
| 51 | Vera Knowlton | 49 | Wife | Housewife | Kansas |
| 52 | Roy R Cummings | 53 | Head | Farmer | Kansas |
| 53 | Anda Cummings | 58 | Wife | Housewife | Kansas |
| 54 | Adela Cummings | 16 | Daughter | Student | Kansas |
| 55 | Melba Cummings | 14 | Daughter | Student | Kansas |
| 56 | Martha Cummings | 77 | Mother | — | West Virginia |
| 57 | Harry O Sweckard | 57 | Head | Farmer | Kansas |
| 58 | Anba Sweckard | 51 | Wife | Housewife | Kansas |
| 59 | William Mcroberts | 58 | Laborer | Laborer | Ohio |
| 60 | Clarence Lacey | 53 | Head | Farmer | Kansas |
| 61 | Sadie Lacey | 50 | Wife | Housewife | Kansas |
| 62 | Dean Lacey | 16 | Son | Student | Kansas |
| 63 | Elizabeth Lacey | 14 | Daughter | Student | Kansas |
| 64 | Charley Cook | 80 | Head | Farmer | Kansas |
| 65 | Elsie Cook | 43 | Wife | Housewife | Kansas |
| 66 | Ruth Cook THIS PERSON | 22 | Daughter | Grade Teacher | Kansas |
| 67 | Robert Cook | 18 | Son | Farmer | Kansas |
| 68 | John Fries | 55 | Head | Farmer | Germany |
| 69 | Minnie Fries | 49 | Wife | Housewife | Kansas |
| 70 | Teresa Jackson | 28 | Daughter | Housekeeper | Kansas |
| 71 | Arthur Jackson | 20 | Son | Laborer | Kansas |
| 72 | Irene Jackson | 18 | Daughter | Housekeeper | Kansas |
| 73 | Maxine Jackson | 16 | Daughter | Student | Kansas |
| 74 | Robert Jackson | 14 | Son | Student | Kansas |
| 75 | Eugene Jackson | 12 | Son | — | Kansas |
| 76 | Alma Jackson | 10 | Daughter | — | Kansas |
| 77 | Maynard Jackson | 8 | Son | — | Kansas |
| 78 | Charlene Jackson | 6 | Daughter | — | Kansas |
| 79 | John D Knowlton | 49 | Head | Farmer | Kansas |
| 80 | Ethel Knowlton | 47 | Wife | Housewife | Kansas |
Pedigree Summary
Ruth + 1 sibling
Gen 1 · 3 parents
~0.92
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)