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Effie Davis — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Florence, South Carolina
Our Model Tree links this Effie Davis across the 1920 and 1930 US Censuses in Florence, South Carolina (XGBoost, ~Confirmed) — first a daughter (b.~1912), then head of a 10-person household.
Age 18
b. ~1912
Female
Daughter
Born: South Carolina
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Florence, South Carolina |
| Surname | Davis |
| Given Name | Effie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 18 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Additional Details | |
| Occupation | Cook |
| Industry | Private family |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Cook |
| Township / Ward | Jeffries Township |
| Est. Birth Year | ~1912 |
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 1930 census.
| Name | Relation to head | Relative to Effie | Age | Birth yr |
|---|---|---|---|---|
| Eddie Davis | Head | — | 46 | ~1884 |
| Edline Davis | Daughter | — | 17 | ~1913 |
| Rosa Davis | Daughter | — | 2 | ~1928 |
| James Davis | Son | — | 15 | ~1915 |
| Annie Davis | Daughter | — | 13 | ~1917 |
| Nellie Davis | Spouse | — | 38 | ~1892 |
| Effie Davis | Daughter | — | 18 | ~1912 |
| Franklin Davis | Son | — | 7 | ~1923 |
| Edna Davis | Daughter | — | 5 | ~1925 |
| Emma Davis | Daughter | — | 9 | ~1921 |
Census Appearances
1920
Florence, South …
Daughter, age 9
Florence, South Carolina · implied b. ~1911 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Effie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 9 |
| 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 |
1930
Florence, South …
Daughter, age 18
Florence, South Carolina · implied b. ~1912 — 10 household members
| Surname | Davis |
| Given Name | Effie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 18 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | Cook |
| Industry | Private family |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 Effie Davis across 2 US Census years (1920 and 1930) in Florence, South Carolina, using XGBoost record linkage.
Show:
This person
Anchor record
Effie Davis
Daughter · 1930 · age 18 · b. ~1912 · South Carolina
★ You are viewing this record
Sibling
Rosa Davis
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Emma Davis
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Franklin Davis
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Annie Davis
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edna Davis
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edline Davis
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Davis
Sibling · 1930 · age 15
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
1930 US Federal Census — Florence, South Carolina
Open full size
1930 US Federal Census — Florence, South Carolina
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2197unit:0086)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charalie Gladbalel | 8 | Son | — | South Carolina |
| 2 | Pearl Gladbalel | 5 | Daughter | None | South Carolina |
| 3 | Frank Gladbalel | 3 | Son | None | South Carolina |
| 4 | Laura Kelly | 26 | Sister | Laborer | South Carolina |
| 5 | Lizzie A. Kelly | 7 | Niece | None | South Carolina |
| 6 | Eddie Davis | 46 | Head | Laborer | South Carolina |
| 7 | Nellie H. Davis | 38 | Wife | None | South Carolina |
| 8 | Effie Davis THIS PERSON | 18 | Daughter | Cook | South Carolina |
| 9 | Edline Davis | 17 | Daughter | None | South Carolina |
| 10 | James Davis | 15 | Son | None | South Carolina |
| 11 | Annie Davis | 13 | Daughter | None | South Carolina |
| 12 | Emma L. Davis | 9 | Daughter | None | South Carolina |
| 13 | Franklin Davis | 7 | Son | None | South Carolina |
| 14 | Edna Davis | 5 | Daughter | None | South Carolina |
| 15 | Rosa Davis | 2 | Daughter | None | South Carolina |
| 16 | Smiley Gragg | 22 | Head | Laborer | South Carolina |
| 17 | Marie Gragg | 23 | Wife | None | South Carolina |
| 18 | Fulton Gragg | 4 | Son | None | South Carolina |
| 19 | Emma Gragg | 35 | Head | Laborer | South Carolina |
| 20 | Ida Gragg | 16 | Daughter | None | South Carolina |
| 21 | Lizzie Gragg | 13 | Daughter | None | South Carolina |
| 22 | Rachel Gragg | 10 | Daughter | None | South Carolina |
| 23 | Hannah Gragg | 9 | Daughter | None | South Carolina |
| 24 | Rosina Gragg | 6 | Daughter | None | South Carolina |
| 25 | Calvin Gragg | 1 | Son | None | South Carolina |
| 26 | Ernest Gragg | 4 | Son | None | South Carolina |
| 27 | Ernest Barr | 42 | Head | Laborer | South Carolina |
| 28 | Vicy Barr | 38 | Wife | None | South Carolina |
| 29 | Chester Barr | 13 | Son | Laborer | South Carolina |
| 30 | Rosie Barr | 7 | Daughter | None | South Carolina |
| 31 | Ernest Jr. Barr | 5 | Son | None | South Carolina |
| 32 | Mildred Barr | 3 | Son | None | South Carolina |
| 33 | Spencer Gragg | 40 | Head | Laborer | South Carolina |
| 34 | Hattie Gragg | 38 | Wife | None | South Carolina |
| 35 | Walter Gragg | 18 | Son | Laborer | South Carolina |
| 36 | Cora Gragg | 16 | Daughter | None | South Carolina |
| 37 | Gladys Gragg | 14 | Daughter | None | South Carolina |
| 38 | Spencer Jr. Gragg | 9 | Son | None | South Carolina |
| 39 | Philip Gragg | 8 | Son | None | South Carolina |
| 40 | Robert Gragg | 6 | Son | None | South Carolina |
| 41 | Annie Gragg | 5 | Daughter | None | South Carolina |
| 42 | Sam Coker | 38 | Head | Laborer | South Carolina |
| 43 | Annie Coker | 29 | Wife | None | South Carolina |
| 44 | Sam Jr. Coker | 5 | Son | None | South Carolina |
| 45 | Willie Coker | 3 | Son | None | South Carolina |
| 46 | Preston Coker | 42 | Head | Laborer | South Carolina |
| 47 | Mara Coker | 32 | Wife | None | South Carolina |
| 48 | Hester Coker | 17 | Son | Laborer | South Carolina |
| 49 | Mary Coker | 15 | Daughter | None | South Carolina |
| 50 | Isabela Coker | 12 | Daughter | None | South Carolina |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)