JC
John Cook — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Richland-County, South Carolina
Our Model Tree links this John Cook across the 1920, 1930 and 1940 US Censuses in Richland-County, South Carolina (XGBoost, ~Confirmed) — first a head (b.~1885), then head of a 9-person household.
Age 55
b. ~1885
Male
Head
Born: South Carolina
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Richland-County, South Carolina |
| Surname | Cook |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 55 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Hyatt Park School District #2 |
| 1935 Residence (County) | Richland |
| Additional Details | |
| Occupation | Laborer |
| Industry | Steam Railroad |
| Class of Worker | PW |
| Hours Worked | 49 |
| Income (1939) | 610 |
| Highest Grade | No 4 |
| 1935 Residence | Same House |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Laborer |
| Township / Ward | Hyatt Park School District 2 |
| Est. Birth Year | ~1885 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Etta Cook | Daughter | — | 13 | ~1927 |
| Dorris Cook | Daughter | — | 11 | ~1929 |
| Jessie Cook | Daughter | — | 18 | ~1922 |
| John Cook | Head | — | 55 | ~1885 |
| Harry Evans | Other | — | 5 | ~1935 |
| Joseph Pea | Other | — | 10 | ~1930 |
| Daniel Cook | Son | — | 15 | ~1925 |
| Willie Cook | Son | — | 6 | ~1934 |
| Carrie Cook | Spouse | — | 51 | ~1889 |
Census Appearances
1920
Fairfield, South …
Head, age 34
Fairfield, South Carolina · implied b. ~1886 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 34 |
| Marital Status | Married |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | Farmer |
| Industry | Gen Farm |
| Class of Worker | Emp |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1930
Fairfield, South …
Head, age 45
Fairfield, South Carolina · implied b. ~1885 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 45 |
| Marital Status | Married |
| Birthplace | South Carolina |
| Age at First Marriage | 18 |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | Farmer |
| Industry | Gen Farm |
| Class of Worker | OA |
| Can Read/Write | No |
| Home Owned/Rented | R |
| Veteran | No |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Richland-County, South …
Head, age 55
Richland-County, South Carolina · implied b. ~1885 — 9 household members
| Surname | Cook |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 55 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Hyatt Park School District #2 |
| 1935 Residence (County) | Richland |
| Occupation | Laborer |
| Industry | Steam Railroad |
| Class of Worker | PW |
| Hours Worked | 49 |
| Income (1939) | 610 |
| Highest Grade | No 4 |
| 1935 Residence | Same House |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
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.
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This person
Anchor record
John Cook
Head · 1940 · age 55 · b. ~1885 · South Carolina
★ 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 — Richland-County, South Carolina
Open full size
1940 US Federal Census — Richland-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03834-00256)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Josephine Taylor | 29 | Wife | — | South Carolina |
| 2 | Herbert Jr. Taylor | 11 | Son | — | South Carolina |
| 3 | Bertha Taylor | 9 | Daughter | — | South Carolina |
| 4 | Elizabeth Taylor | 6 | Daughter | — | South Carolina |
| 5 | Maxine Taylor | 4 | Daughter | — | South Carolina |
| 6 | Eliza Townsend | 52 | Lodger | Cook | South Carolina |
| 7 | Della Green | 75 | Lodger | — | South Carolina |
| 8 | William Anderson | 48 | Head | Laborer | South Carolina |
| 9 | Lennie Anderson | 45 | Wife | Laundress | South Carolina |
| 10 | Alice Bates | 65 | Head | — | South Carolina |
| 11 | Ella Bates | 47 | Daughter | Cook | South Carolina |
| 12 | Clara Ball | 36 | Daughter | Cook | South Carolina |
| 13 | Pearl Bates | 20 | Daughter | Laundress | South Carolina |
| 14 | Nora Shell | 15 | Daughter | — | South Carolina |
| 15 | Maggie Smith | 43 | Head | — | South Carolina |
| 16 | Elliott Smith | 23 | Son | Laborer | South Carolina |
| 17 | James Smith | 22 | Son | Laborer | South Carolina |
| 18 | Matthew Smith | 18 | Son | — | South Carolina |
| 19 | Nancy Smith | 21 | Daughter | Floor Washer | South Carolina |
| 20 | Eve Mae Smith | 22 | Daughter-in-law | — | South Carolina |
| 21 | Milton C. (Rev) Pollock | 63 | Head | Minister/Helper | South Carolina |
| 22 | Martha Pollock | 55 | Wife | — | South Carolina |
| 23 | John Cook THIS PERSON | 55 | Head | Laborer | South Carolina |
| 24 | Carrie Cook | 51 | Wife | — | South Carolina |
| 25 | Jessie Cook | 18 | Daughter | — | South Carolina |
| 26 | Daniel Cook | 15 | Son | — | South Carolina |
| 27 | Etta Mae Cook | 13 | Daughter | — | South Carolina |
| 28 | Dorris Cook | 11 | Daughter | — | South Carolina |
| 29 | Willie Cook | 6 | Son | — | South Carolina |
| 30 | Joseph Pea | 10 | Boarder | — | South Carolina |
| 31 | Harry Evans | 5 | Boarder | — | South Carolina |
| 32 | Richard, Sr. Spry | 46 | Head | Laborer | South Carolina |
| 33 | Josephine Spry | 37 | Wife | — | South Carolina |
| 34 | Claire Spry | 19 | Daughter | — | South Carolina |
| 35 | William Spry | 14 | Son | — | South Carolina |
| 36 | Mary Spry | 12 | Daughter | — | South Carolina |
| 37 | Richard, Jr. Spry | 10 | Son | — | South Carolina |
| 38 | Grady Miller | 50 | Head | Carpenter | South Carolina |
| 39 | Willie Miller | 39 | Wife | — | South Carolina |
| 40 | Effie Miller | 17 | Daughter | — | South Carolina |
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)