RC
Robert Cook — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Aiken-County, South Carolina
Our Model Tree links this Robert Cook across the 1930 and 1940 US Censuses in Aiken-County, South Carolina (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 12-person household.
Age 18
b. ~1922
Male
Son
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Aiken-County, South Carolina |
| Surname | Cook |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 18 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Aiken |
| Additional Details | |
| Occupation | Farm Laborer |
| Industry | Private Farm |
| Class of Worker | PW |
| Hours Worked | 55 |
| Income (1939) | 50 |
| Highest Grade | No 5 |
| 1935 Residence | South Carolina |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Farm Laborer |
| Township / Ward | Schultz |
| Est. Birth Year | ~1922 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Rosalie Cook | Daughter | — | 13 | ~1927 |
| Georgia Cook | Daughter | — | 5 | ~1935 |
| Minnie Cook | Daughter | — | 2 | ~1938 |
| Clara Cook | Daughter | — | 16 | ~1924 |
| Ollie Cook | Daughter | — | 8 | ~1932 |
| Marie Cook | Daughter | — | 12 | ~1928 |
| Joe Cook | Head | — | 41 | ~1899 |
| John Cook | Son | — | 10 | ~1930 |
| Robert Cook | Son | — | 18 | ~1922 |
| Ed Cook | Son | — | 4 | ~1936 |
| Lucious Cook | Son | — | 15 | ~1925 |
| Martha Cook | Spouse | — | 39 | ~1901 |
Census Appearances
1930
Aiken, South …
Son, age 8
Aiken, South Carolina · implied b. ~1922 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 8 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Aiken-County, South …
Son, age 18
Aiken-County, South Carolina · implied b. ~1922 — 12 household members
| Surname | Cook |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 18 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Aiken |
| Occupation | Farm Laborer |
| Industry | Private Farm |
| Class of Worker | PW |
| Hours Worked | 55 |
| Income (1939) | 50 |
| Highest Grade | No 5 |
| 1935 Residence | South Carolina |
| 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 Robert Cook across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Cook
Son · 1940 · age 18 · b. ~1922 · South Carolina
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Sibling
John Cook
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lucious Cook
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clara Cook
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ed Cook
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rosalie Cook
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ollie Cook
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Minnie Cook
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Cook
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Georgia Cook
Sibling · 1940 · age 5
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 — Aiken-County, South Carolina
Open full size
1940 US Federal Census — Aiken-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03783-00435)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Alvie Hall | 5 | Son | — | South Carolina |
| 42 | Christine Hall | 3 | Daughter | — | South Carolina |
| 43 | Georgia Hall | 75 | Head | — | South Carolina |
| 44 | Lilla Smith | 65 | Head | — | South Carolina |
| 45 | James Smith | 35 | Son | Farmer | South Carolina |
| 46 | Viola Smith | 26 | Daughter in law | Helper | South Carolina |
| 47 | James Jr. Smith | 7 | Son | — | South Carolina |
| 48 | Rosella Smith | 6 | Granddaughter | — | South Carolina |
| 49 | Ruth Smith | 4 | Granddaughter | — | South Carolina |
| 50 | Rufus Smith | 4 | Grandson | — | South Carolina |
| 51 | Alberta Smith | 2 | Granddaughter | — | South Carolina |
| 52 | Paul Scott | 46 | Head | Laborer | South Carolina |
| 53 | Joe Cook | 41 | Head | Farmer | South Carolina |
| 54 | Martha Cook | 39 | Wife | Helper | South Carolina |
| 55 | Robert Cook THIS PERSON | 18 | Son | Farm Laborer | South Carolina |
| 56 | Clara Cook | 16 | Daughter | Cook | South Carolina |
| 57 | Lucious Cook | 15 | Son | Helper | South Carolina |
| 58 | Rosalie Cook | 13 | Daughter | Helper | South Carolina |
| 59 | Marie Cook | 12 | Daughter | — | South Carolina |
| 60 | John Cook | 10 | Son | — | South Carolina |
| 61 | Ollie Lou Cook | 8 | Daughter | — | South Carolina |
| 62 | Georgia Cook | 5 | Daughter | — | South Carolina |
| 63 | Ed Cook | 4 | Son | — | South Carolina |
| 64 | Minnie Cook | 2 | Daughter | — | South Carolina |
| 65 | Wade Smith | 54 | Head | Farmer | South Carolina |
| 66 | Laura Smith | 40 | Wife | Helper | South Carolina |
| 67 | Maxie Smith | 15 | Son | Helper | South Carolina |
| 68 | Meriem Smith | 12 | Daughter | — | South Carolina |
| 69 | Isiah Smith | 11 | Son | — | South Carolina |
| 70 | Jack Smith | 9 | Son | — | South Carolina |
| 71 | K. A. Stephens | 59 | Head | Overseer | South Carolina |
| 72 | Mattie Stephens | 56 | Wife | — | South Carolina |
| 73 | Thomas Stephens | 29 | Son | Farmer | South Carolina |
| 74 | Frances Stephens | 27 | Son | — | South Carolina |
| 75 | Willie Fletcher | 45 | Head | Farmer | South Carolina |
| 76 | Maria Fletcher | 40 | Wife | Servant | South Carolina |
| 77 | Carrie Bell Fletcher | 15 | Daughter | — | South Carolina |
| 78 | Louis Fletcher | 13 | Son | Helper | South Carolina |
| 79 | Rosa Mae Fletcher | 12 | Daughter | — | South Carolina |
| 80 | Dan Fletcher | 30 | Head | Milker | South Carolina |
Related Census Records
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)