JC
John Cook — 1940 US Census Record
Model Tree available1940 United States Federal Census · Craighead-County, Arkansas
Our Model Tree links this John Cook across the 1920, 1930 and 1940 US Censuses in Craighead-County, Arkansas (XGBoost, ~Confirmed), with identified parents George & Isaac — first a head (b.~1901), then head of a 4-person household.
Age 39
b. ~1901
Male
Head
Born: Arkansas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Craighead-County, Arkansas |
| Surname | Cook |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Arkansas |
| 1935 Residence (City) | Herndon Twp |
| 1935 Residence (County) | Craighead |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same Place |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
| Occupation | Farmer |
| Township / Ward | Herndon Twp |
| Est. Birth Year | ~1901 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Helen Cook | Daughter | — | 17 | ~1923 |
| John Cook | Head | — | 39 | ~1901 |
| Leroy Cook | Son | — | 15 | ~1925 |
| Maggie Cook | Spouse | — | 39 | ~1901 |
Census Appearances
1920
Craighead, Arkansas
Son, age 20
Craighead, Arkansas · implied b. ~1900 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Arkansas |
| Father's Birthplace | Arkansas |
| Mother's Birthplace | Arkansas |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
1930
Craighead, Arkansas
Son, age 30
Craighead, Arkansas · implied b. ~1900 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Arkansas |
| Age at First Marriage | 22 |
| Father's Birthplace | Arkansas |
| Mother's Birthplace | Arkansas |
| Occupation | Laborer |
| Industry | Brick Yard |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
1940
Craighead-County, Arkansas
Head, age 39
Craighead-County, Arkansas · implied b. ~1901 — 4 household members
| Surname | Cook |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Arkansas |
| 1935 Residence (City) | Herndon Twp |
| 1935 Residence (County) | Craighead |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same Place |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
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 John Cook across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Cook (~0.92 confidence) and father Isaac Cook (~0.92 confidence) and mother Ida Cook (~0.92 confidence) and mother Ada Cook (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Cook
b. ~1871
Source father
● Household
· direct · ~0.92
Father
Isaac Cook
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Ida Cook
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Ada Cook
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Cook
Head · 1940 · age 39 · b. ~1901 · Arkansas
★ 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 — Craighead-County, Arkansas
Open full size
1940 US Federal Census — Craighead-County, Arkansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00128-00476)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Dorothy Johnson | 21 | Wife | — | Arkansas |
| 2 | Betty Lou Johnson | 2 | Daughter | — | Arkansas |
| 3 | J. A. Gambill | 49 | Head | Farmer | Arkansas |
| 4 | Ruth Gambill | 42 | Wife | — | Arkansas |
| 5 | Olga Gambill | 25 | Daughter | — | Arkansas |
| 6 | Fred Gambill | 22 | Son | — | Arkansas |
| 7 | James Gambill | 20 | Son | — | Arkansas |
| 8 | Inahron Gambill | 15 | Daughter | — | Arkansas |
| 9 | J. M. Gambill | 35 | Head | Farmer | Arkansas |
| 10 | Manda Gambill | 36 | Wife | — | Arkansas |
| 11 | Eugene Gambill | 17 | Son | — | Arkansas |
| 12 | Mary L. Gambill | 15 | Daughter | — | Arkansas |
| 13 | James F. Gambill | 14 | Son | — | Arkansas |
| 14 | Earl Gambill | 10 | Son | — | Arkansas |
| 15 | Muriel Gambill | 10 | Daughter | — | Arkansas |
| 16 | Johnny F. Gambill | 8 | Son | — | Arkansas |
| 17 | Angeline Gambill | 3 | Daughter | — | Arkansas |
| 18 | Kenneth O. Gambill | 2 | Son | — | Arkansas |
| 19 | M. J. Gambill | 72 | Mother | — | Missouri |
| 20 | John H. Cook THIS PERSON | 39 | Head | Farmer | Arkansas |
| 21 | Maggie Cook | 39 | Wife | — | Arkansas |
| 22 | Helen Cook | 17 | Daughter | — | Arkansas |
| 23 | Leroy Cook | 15 | Son | — | Arkansas |
| 24 | B. M. Gambill | 58 | Head | Farmer | Arkansas |
| 25 | Elma Gambill | 57 | Wife | — | Arkansas |
| 26 | R. L. Dunnam | 41 | Head | Clerk | Arkansas |
| 27 | M. M. Dunnam | 36 | Wife | — | Tennessee |
| 28 | Leon Dunnam | 12 | Son | — | Arkansas |
| 29 | Curtis Dunnam | 5 | Son | — | Arkansas |
| 30 | Peggy L. Dunnam | 1 | Daughter | — | Arkansas |
| 31 | C. W. Miller | 24 | Head | Engineer | Arkansas |
| 32 | Celva Miller | 23 | Wife | — | Arkansas |
| 33 | Wayne Miller | 1 | Son | — | Arkansas |
| 34 | A. M. Cook | 48 | Head | Farmer | Arkansas |
| 35 | Gertrude Cook | 46 | Wife | — | Arkansas |
| 36 | Anda Lee Cook | 16 | Daughter | — | Arkansas |
| 37 | Morris Cook | 11 | Son | — | Arkansas |
| 38 | Doris Cook | 11 | Daughter | — | Arkansas |
| 39 | Sammie N. Cook | 6 | Son | — | Arkansas |
| 40 | Shirley Ann Cook | 4 | Daughter | — | Arkansas |
Pedigree Summary
John
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)