MC
Martha Cooper — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Carroll-County, Georgia
Our Model Tree links this Martha Cooper across the 1930 and 1940 US Censuses in Carroll-County, Georgia (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 10-person household.
Age 12
b. ~1928
Female
Daughter
Born: Georgia
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Carroll-County, Georgia |
| Surname | Cooper |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Georgia |
| 1935 Residence (City) | Carrollton |
| 1935 Residence (County) | Carroll |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
| Township / Ward | Carrollton |
| Est. Birth Year | ~1928 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Martha | Age | Birth yr |
|---|---|---|---|---|
| Elaine Cooper | Daughter | — | 7 | ~1933 |
| Martha Cooper | Daughter | — | 12 | ~1928 |
| Harris Cooper | Son | — | 4 | ~1936 |
| Inez Cooper | Daughter | — | 17 | ~1923 |
| Ray Cooper | Head | — | 44 | ~1896 |
| Polly Cooper | Daughter | — | 9 | ~1931 |
| Carolyn Cooper | Daughter | — | 14 | ~1926 |
| Molly Lancaster | Other | — | 78 | ~1862 |
| Pearl Cooper | Spouse | — | 41 | ~1899 |
| June Cooper | Daughter | — | 19 | ~1921 |
Census Appearances
1930
Carroll, Georgia
Daughter, age 2
Carroll, Georgia · implied b. ~1928 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Georgia |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
1940
Carroll-County, Georgia
Daughter, age 12
Carroll-County, Georgia · implied b. ~1928 — 10 household members
| Surname | Cooper |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Georgia |
| 1935 Residence (City) | Carrollton |
| 1935 Residence (County) | Carroll |
| Class of Worker | 0 |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
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 Martha Cooper across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Martha Cooper
Daughter · 1940 · age 12 · b. ~1928 · Georgia
★ You are viewing this record
Sibling
Carolyn Cooper
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
June Cooper
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Inez Cooper
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Polly Cooper
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harris Cooper
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elaine Cooper
Sibling · 1940 · age 7
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 — Carroll-County, Georgia
Open full size
1940 US Federal Census — Carroll-County, Georgia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00647-00246)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alfred D. Carroll | 8 | Son | — | Georgia |
| 2 | Richard J. Carroll | 1 | Son | — | Georgia |
| 3 | Ray T. Cooper | 44 | Head | Railroad Flagman | Georgia |
| 4 | Pearl Cooper | 41 | Wife | — | Georgia |
| 5 | June Cooper | 19 | Daughter | Inspector | Georgia |
| 6 | Inez Cooper | 17 | Daughter | — | Georgia |
| 7 | Carolyn Cooper | 14 | Daughter | — | Georgia |
| 8 | Martha Cooper THIS PERSON | 12 | Daughter | — | Georgia |
| 9 | Polly Cooper | 9 | Daughter | — | Georgia |
| 10 | Elaine Cooper | 7 | Daughter | — | Georgia |
| 11 | Harris Cooper | 4 | Son | — | Georgia |
| 12 | Molly B. Lancaster | 78 | Mother-in-law | — | Georgia |
| 13 | Allie Skinner | 47 | Head | Winder | Georgia |
| 14 | Quillian P. Skinner | 19 | Son | Roping Hauler | Georgia |
| 15 | Eartie Skinner | 17 | Daughter | Winder | Georgia |
| 16 | James J. Edwards | 31 | Head | Fixer | Mississippi |
| 17 | Lillian Edwards | 29 | Wife | — | Mississippi |
| 18 | Donald Jr. Edwards | 4 | Son | — | Mississippi |
| 19 | Lillian Edwards | 1 | Daughter | — | Georgia |
| 20 | Peggy J. Edwards | 0 | Daughter | — | Georgia |
| 21 | Thomas J. Norton | 55 | Head | Card Runner | Georgia |
| 22 | Maudie Norton | 46 | Wife | Spooler | Georgia |
| 23 | John M. Ragsdale | 74 | Head | Cotton Opener | Alabama |
| 24 | Lula Ragsdale | 71 | Wife | — | Alabama |
| 25 | John W. Williamson | 33 | Head | Fixer | Georgia |
| 26 | Thelma Williamson | 32 | Wife | Spooler | Georgia |
| 27 | William G. Ragsdale | 55 | Head | — | Alabama |
| 28 | Mamie Ragsdale | 29 | Daughter | Spinner | Alabama |
| 29 | William H. Ragsdale | 26 | Son | General Hand | Alabama |
| 30 | Wilbur G. Nicholson | 34 | Head | Section Hand | Georgia |
| 31 | Clarice Nicholson | 27 | Wife | Spinner | Georgia |
| 32 | Janet Nicholson | 3 | Daughter | — | Georgia |
| 33 | Fennel A. Nicholson | 59 | Head | Second Hand | Georgia |
| 34 | Lilla B. Nicholson | 51 | Wife | — | Georgia |
| 35 | Loyal D. Nicholson | 23 | Son | Twister Hand | Georgia |
| 36 | Nellie Nicholson | 17 | Daughter | Child Nurse | Georgia |
| 37 | Fennel A. Nicholson | 12 | Son | — | Georgia |
| 38 | Harold N. Davis | 24 | Son-in-law | Creeler Hand | Georgia |
| 39 | Dorothy Davis | 19 | Daughter | Hand | Georgia |
| 40 | Harold N. Davis | 1 | Grandson | — | Georgia |
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)