GC
Grace Cook — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Francois-County, Missouri
Our Model Tree links this Grace Cook across the 1920, 1930 and 1940 US Censuses in St.-Francois-County, Missouri (XGBoost, ~Confirmed), with identified parents Sam & Samuel — first a spouse (b.~1908), then head of a 4-person household.
Age 32
b. ~1908
Female
Spouse
Born: Missouri
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Francois-County, Missouri |
| Surname | Cook |
| Given Name | Grace |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | Elvins City |
| 1935 Residence (County) | St. Francois |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Elvins City |
| Est. Birth Year | ~1908 |
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 Grace | Age | Birth yr |
|---|---|---|---|---|
| Grace Cook | Spouse | — | 32 | ~1908 |
| Elmer Cook | Head | — | 33 | ~1907 |
| Elaine Cook | Daughter | — | 10 | ~1930 |
| Sharmaine Cook | Daughter | — | 6 | ~1934 |
Census Appearances
1920
St Francois, …
Daughter, age 12
St Francois, Missouri · implied b. ~1908 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Gladys W |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Arkansas |
| Mother's Birthplace | Missouri |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
St Francois, …
Daughter, age 21
St Francois, Missouri · implied b. ~1909 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Gladys |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Arkansas |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Francois-County, Missouri
Spouse, age 32
St.-Francois-County, Missouri · implied b. ~1908 — 4 household members
| Surname | Cook |
| Given Name | Grace |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | Elvins City |
| 1935 Residence (County) | St. Francois |
| Class of Worker | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Grace Cook across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Sam Cook (~0.92 confidence) and father Samuel Cook (~0.92 confidence) and mother Bell Cook (~0.92 confidence) and mother Belle Cook (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Sam Cook
b. ~1883
Source father
● Household
· direct · ~0.92
Father
Samuel Cook
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Bell Cook
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Belle Cook
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Grace Cook
Spouse · 1940 · age 32 · b. ~1908 · Missouri
★ 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 — St.-Francois-County, Missouri
Open full size
1940 US Federal Census — St.-Francois-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02146-00343)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Logan, Ruby Nogami | 5 | Daughter | — | Missouri |
| 2 | Alta Nogami | 2 | Daughter | — | Missouri |
| 3 | Edward Nogami | 0 | Son | — | Missouri |
| 4 | Lucy A. Smith | 67 | Mother | — | Missouri |
| 5 | Harley L. Smith | 49 | Head | Driller | Missouri |
| 6 | Ruth Smith | 47 | Wife | — | Missouri |
| 7 | Robert Smith | 23 | Son | Teacher | Missouri |
| 8 | Louretta Smith | 20 | Daughter | — | Missouri |
| 9 | Sam Ritter | 80 | Head | — | Missouri |
| 10 | Melinda Ritter | 82 | Wife | — | Missouri |
| 11 | Katie O'Brien | 57 | Daughter | — | Missouri |
| 12 | Clarence Johnson | 47 | Head | Motorman | Missouri |
| 13 | Mamie Johnson | 32 | Wife | — | Missouri |
| 14 | Melvin Johnson | 15 | Son | — | Missouri |
| 15 | Wilma J. Johnson | 13 | Daughter | — | Missouri |
| 16 | Andrew W. Polk | 58 | Head | Machine Man | Missouri |
| 17 | Emma Polk | 58 | Wife | — | Missouri |
| 18 | Lindel Polk | 19 | Son | Laborer | Missouri |
| 19 | Cecil Milburn | 35 | Head | Machinist | Missouri |
| 20 | Sibyl Milburn | 34 | Wife | — | Missouri |
| 21 | Alfred Beck | 38 | Head | Prospect Miner | Illinois |
| 22 | Edith Beck | 35 | Wife | — | Missouri |
| 23 | John W. Beck | 10 | Son | — | Missouri |
| 24 | Patricia Beck | 5 | Daughter | — | Missouri |
| 25 | Howard Bayless | 40 | Head | Miner | Missouri |
| 26 | Grace Bayless | 35 | Wife | — | Missouri |
| 27 | Beverly Bayless | 7 | Daughter | — | Missouri |
| 28 | Carl Berryman | 46 | Head | Driller | Missouri |
| 29 | Tessie Berryman | 44 | Wife | — | Missouri |
| 30 | Carl Jr. Berryman | 20 | Son | Clerk | Missouri |
| 31 | John N. Berryman | 18 | Son | — | Missouri |
| 32 | John Lane | 79 | Father-in-law | — | Missouri |
| 33 | Elmer E. Cook | 33 | Head | Electric Welder | Missouri |
| 34 | Grace Cook THIS PERSON | 32 | Wife | — | Missouri |
| 35 | Elaine Cook | 10 | Daughter | — | Missouri |
| 36 | Sharmaine Cook | 6 | Daughter | — | Missouri |
| 37 | Theodore Campbell | 60 | Head | Driller | Missouri |
| 38 | Emily Campbell | 58 | Wife | — | Missouri |
| 39 | John E. Seal | 29 | Head | Baker | Missouri |
| 40 | Helen M. Seal | 22 | Wife | Hat Trimmer | Missouri |
Pedigree Summary
Grace
Gen 1 · 4 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)