RD
Ruby Davis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cobb-County, Georgia
Our Model Tree links this Ruby Davis across the 1930 and 1940 US Censuses in Cobb-County, Georgia (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 9-person household.
Age 12
b. ~1928
Female
Daughter
Born: Georgia
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cobb-County, Georgia |
| Surname | Davis |
| Given Name | Ruby E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Georgia |
| 1935 Residence (City) | Unincorporated place Mableton |
| 1935 Residence (County) | Cobb |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
| Township / Ward | Unincorporated Place Mableton |
| 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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ruby | Age | Birth yr |
|---|---|---|---|---|
| Daly Davis | Daughter | — | 14 | ~1926 |
| Jane Davis | Daughter | — | 7 | ~1933 |
| Patricia Davis | Daughter | — | 4 | ~1936 |
| Margaret Davis | Daughter | — | 17 | ~1923 |
| Ruby Davis | Daughter | — | 12 | ~1928 |
| Alexander Davis | Head | — | 48 | ~1892 |
| John Davis | Son | — | 9 | ~1931 |
| Alfred Davis | Son | — | 11 | ~1929 |
| Alexander Davis | Son | — | 19 | ~1921 |
Census Appearances
1930
Cobb, Georgia
Daughter, age 3
Cobb, Georgia · implied b. ~1927 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Ruby |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Georgia |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
1940
Cobb-County, Georgia
Daughter, age 12
Cobb-County, Georgia · implied b. ~1928 — 9 household members
| Surname | Davis |
| Given Name | Ruby E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Georgia |
| 1935 Residence (City) | Unincorporated place Mableton |
| 1935 Residence (County) | Cobb |
| Highest Grade | No 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 Ruby Davis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ruby Davis
Daughter · 1940 · age 12 · b. ~1928 · Georgia
★ You are viewing this record
Sibling
Daly Davis
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Davis
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jane Davis
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alexander Davis
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Davis
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alfred Davis
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Davis
Sibling · 1940 · age 17
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 — Cobb-County, Georgia
Open full size
1940 US Federal Census — Cobb-County, Georgia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00658-00180)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James R. Little | 25 | Head | General Manager | Alabama |
| 2 | Frances R. Little | 25 | Wife | — | Indiana |
| 3 | Frances J. Little | 4 | Daughter | — | — |
| 4 | Barbara A. Little | 3 | Daughter | — | — |
| 5 | Samuel J. Davis | 79 | Head | Farmer | Georgia |
| 6 | Sara Jane Davis | 79 | Wife | — | Georgia |
| 7 | Grace Hill | 38 | Head | Wash Woman | Georgia |
| 8 | John R. Hill | 16 | Son | Laborer | Georgia |
| 9 | James A. Hill | 13 | Son | — | Georgia |
| 10 | Horace W. Hill | 9 | Son | — | Georgia |
| 11 | Lois M. Hill | 7 | Daughter | — | Georgia |
| 12 | Mattie Hill | 4 | Daughter | — | Georgia |
| 13 | Lloyd Jr. Hill | 2 | Son | — | Georgia |
| 14 | Joe L. Hill | 0 | Son | — | Georgia |
| 15 | Mary E. Davis | 81 | Head | — | Georgia |
| 16 | Ola M. Davis | 52 | Daughter | Seamstress | Georgia |
| 17 | Alexander S. Jr. Davis | 48 | Head | Contractor | Georgia |
| 18 | Alexander S. Jr. Davis | 19 | Son | Carpenter | Georgia |
| 19 | Margaret E. Davis | 17 | Daughter | — | Georgia |
| 20 | Daly G. Davis | 14 | Daughter | — | Georgia |
| 21 | Ruby E. Davis THIS PERSON | 12 | Daughter | — | Georgia |
| 22 | Alfred H. Davis | 11 | Son | — | Georgia |
| 23 | John W. Davis | 9 | Son | — | Georgia |
| 24 | Jane A. Davis | 7 | Daughter | — | Georgia |
| 25 | Patricia J. Davis | 4 | Daughter | — | Georgia |
| 26 | William O. Eaton | 52 | Head | Foreman | Georgia |
| 27 | Pauline L. Eaton | 48 | Wife | — | Georgia |
| 28 | Ed D. Moss | 48 | Head | Proprietor | Georgia |
| 29 | Mary J. Moss | 22 | Daughter | — | Alabama |
| 30 | Linnie J. Waites | 42 | Daughter | — | Georgia |
| 31 | Paul Hill | 32 | Head | Farmer | Georgia |
| 32 | Minnie Hill | 26 | Wife | — | Alabama |
| 33 | Richard Hill | 5 | Son | — | Alabama |
| 34 | Samuel P. Hill | 3 | Son | — | Georgia |
| 35 | Georgia Hill | 50 | Sister | — | Georgia |
| 36 | Rosa P. Dunaway | 73 | Mother | — | Georgia |
| 37 | Robert E. Greenwood | 38 | Head | Cook | Georgia |
| 38 | Sara G. Greenwood | 33 | Wife | Stenographer | South Carolina |
| 39 | Betty Ann Greenwood | 9 | Daughter | — | South Carolina |
| 40 | Robert E. Jr. Greenwood | 1 | Son | — | 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)