RC
Robert Cooper — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Richland-County, South Carolina
Our Model Tree links this Robert Cooper across the 1930 and 1940 US Censuses in Richland-County, South Carolina (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 13-person household.
Age 13
b. ~1927
Male
Son
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Richland-County, South Carolina |
| Surname | Cooper |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Columbia |
| 1935 Residence (County) | Richland |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | South Carolina |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | Hyatt Park |
| Est. Birth Year | ~1927 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Polly Cooper | Daughter | — | 7 | ~1933 |
| Gay Cooper | Daughter | — | 4 | ~1936 |
| Pearl Cooper | Daughter | — | 14 | ~1926 |
| James Cooper | Head | — | 42 | ~1898 |
| Ruth Cooper | Other | — | 17 | ~1923 |
| Jack Cooper | Other | — | ~1940 | |
| Earl Cooper | Son | — | 11 | ~1929 |
| William Cooper | Son | — | 18 | ~1922 |
| James Cooper | Son | — | 3 | ~1937 |
| Jimmie Cooper | Son | — | 5 | ~1935 |
| Jack Cooper | Son | — | 19 | ~1921 |
| Robert Cooper | Son | — | 13 | ~1927 |
| Mayme Cooper | Spouse | — | 39 | ~1901 |
Census Appearances
1930
Lexington, South …
Son, age 2
Lexington, South Carolina · implied b. ~1928 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Robert J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | none |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Richland-County, South …
Son, age 13
Richland-County, South Carolina · implied b. ~1927 — 13 household members
| Surname | Cooper |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Columbia |
| 1935 Residence (County) | Richland |
| 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 Cooper across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Cooper
Son · 1940 · age 13 · b. ~1927 · South Carolina
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Sibling
Jimmie Cooper
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jack Cooper
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Cooper
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Earl Cooper
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gay Cooper
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Polly Cooper
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Cooper
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Pearl Cooper
Sibling · 1940 · age 14
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 — 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-t0627-03834-00165)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Rosetta Sweygert | 36 | Head | Maid | South Carolina |
| 42 | Grady Sweygert | 29 | Son | Laborer | South Carolina |
| 43 | Eula Sweygert | 23 | Daughter | Maid | South Carolina |
| 44 | Lucilla Sweygert | 22 | Son | — | South Carolina |
| 45 | Midell Sweygert | 17 | Daughter | — | South Carolina |
| 46 | Nellie Sweygert | 12 | Daughter | — | South Carolina |
| 47 | Joseph Sweygert | 27 | Son | Truck Driver | South Carolina |
| 48 | William Sweygert | 26 | Son | Laborer | South Carolina |
| 49 | James Lloyd Cooper | 42 | Head | Weaver | South Carolina |
| 50 | Mayme O. Cooper | 39 | Wife | — | South Carolina |
| 51 | William H. Cooper | 18 | Son | Loom Cleaner | South Carolina |
| 52 | Pearl Cooper | 14 | Daughter | — | South Carolina |
| 53 | Robert Cooper THIS PERSON | 13 | Son | — | South Carolina |
| 54 | Earl Cooper | 11 | Son | — | South Carolina |
| 55 | Polly Lou Cooper | 7 | Daughter | — | South Carolina |
| 56 | Jimmie Cooper | 5 | Son | — | South Carolina |
| 57 | Gay Cooper | 4 | Daughter | — | South Carolina |
| 58 | James Lloyd Cooper | 3 | Son | — | South Carolina |
| 59 | Jack Cooper | 19 | Son | Weaver | South Carolina |
| 60 | Ruth Cooper | 17 | Daughter-in-law | — | South Carolina |
| 61 | Jack J. Cooper | 0 | Grandson | — | South Carolina |
| 62 | Roy Ballentine | 31 | Head | Secretary | South Carolina |
| 63 | Bessie O. Ballentine | 23 | Wife | — | South Carolina |
| 64 | Betty Lee Ballentine | 3 | Daughter | — | South Carolina |
| 65 | Willie Campbell | 31 | Head | Carpenter | South Carolina |
| 66 | Beatrice Campbell | 20 | Wife | — | South Carolina |
| 67 | David Campbell | 54 | Head | Ditch Digger | South Carolina |
| 68 | Viola Campbell | 49 | Wife | — | South Carolina |
| 69 | Leonard Shannon | 54 | Head | Laborer | South Carolina |
| 70 | Laura O. Shannon | 39 | Wife | — | South Carolina |
| 71 | James Shannon | 18 | Son | Ccc | South Carolina |
| 72 | Clinton Shannon | 14 | Son | — | South Carolina |
| 73 | Agnes Shannon | 9 | Daughter | — | South Carolina |
| 74 | Betty Shannon | 4 | Daughter | — | South Carolina |
| 75 | Willie O. Hall | 38 | Head | Proprietor | South Carolina |
| 76 | Lydia Hall | 20 | Wife | — | South Carolina |
| 77 | Charlie Wheeler | 48 | Head | Carpenter | Georgia |
| 78 | Pansy Wheeler | 34 | Wife | — | Georgia |
| 79 | Walter Wheeler | 14 | Son | Delivery Boy | South Carolina |
| 80 | Charles Wheeler | 12 | Son | — | 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)