MD
Mamie Davis — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Sumter, South Carolina
Our Model Tree links this Mamie Davis across the 1930 and 1940 US Censuses in Sumter, South Carolina (XGBoost, ~Confirmed) — first a daughter (b.~1918), then head of a 9-person household.
Age 12
b. ~1918
Female
Daughter
Born: South Carolina
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Sumter, South Carolina |
| Surname | Davis |
| Given Name | Mamie |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | Privateer Township |
| Est. Birth Year | ~1918 |
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 1930 census.
| Name | Relation to head | Relative to Mamie | Age | Birth yr |
|---|---|---|---|---|
| Marie Davis | Spouse | — | 37 | ~1893 |
| Isaac Davis | Head | — | 38 | ~1892 |
| Isaac Davis | Son | — | 14 | ~1916 |
| Coralee Davis | Son | — | 4 | ~1926 |
| Bernice Davis | Daughter | — | 1 | ~1929 |
| William Davis | Son | — | 15 | ~1915 |
| Henry Davis | Son | — | 6 | ~1924 |
| Rosalee Davis | Daughter | — | 10 | ~1920 |
| Mamie Davis | Daughter | — | 12 | ~1918 |
Census Appearances
1930
Sumter, South …
Daughter, age 12
Sumter, South Carolina · implied b. ~1918 — 9 household members
| Surname | Davis |
| Given Name | Mamie |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Sumter-County, South …
Daughter, age 23
Sumter-County, South Carolina · implied b. ~1917 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Minnie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 23 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Sumter township |
| 1935 Residence (County) | Sumter |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| 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 Mamie Davis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mamie Davis
Daughter · 1930 · age 12 · b. ~1918 · South Carolina
★ You are viewing this record
Sibling
Coralee Davis
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernice Davis
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Davis
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rosalee Davis
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Davis
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Isaac Davis
Sibling · 1930 · 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
1930 US Federal Census — Sumter, South Carolina
Open full size
1930 US Federal Census — Sumter, South Carolina
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2214unit:0594)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | George Martin | 11 | Son | None | South Carolina |
| 2 | Cecelia Martin | 9 | daughter | None | South Carolina |
| 3 | Mary L. Martin | 4 | daughter | None | South Carolina |
| 4 | Wallace Billings | 47 | Head | Farmer | South Carolina |
| 5 | Rosa Billings | 42 | Sister | None | South Carolina |
| 6 | Lorna Billings | 19 | niece | None | South Carolina |
| 7 | Blair Billings | 17 | son | Farm Labor | South Carolina |
| 8 | Aquilla Billings | 14 | daughter | None | South Carolina |
| 9 | Isaac Davis | 38 | Head | Farmer | South Carolina |
| 10 | Marie Davis | 37 | wife | None | South Carolina |
| 11 | William D. Davis | 15 | son | None | South Carolina |
| 12 | Isaac Jr. Davis | 14 | son | None | South Carolina |
| 13 | Mamie Davis THIS PERSON | 12 | daughter | None | South Carolina |
| 14 | Rosalee Davis | 10 | daughter | None | South Carolina |
| 15 | Henry Davis | 6 | son | None | South Carolina |
| 16 | Coralee Davis | 4 | son | None | South Carolina |
| 17 | Bernice Davis | 1 | daughter | None | South Carolina |
| 18 | Lulu Canty | 63 | Head | Farmer | South Carolina |
| 19 | Clinton Canty | 19 | grand son | Farm Labor | South Carolina |
| 20 | Anna Canty | 18 | grand daughter | None | South Carolina |
| 21 | Albert Canty | 14 | grand son | None | South Carolina |
| 22 | Henry Hill | 15 | grand son | None | South Carolina |
| 23 | Rollie Hill | 16 | grand son | Farm Labor | South Carolina |
| 24 | Robert Hill | 13 | grand son | None | South Carolina |
| 25 | Tom Hill | 11 | grand son | None | South Carolina |
| 26 | Beatrice Canty | 1 | adopted daughter | None | South Carolina |
| 27 | Early Holiday | 37 | Head | Farmer | South Carolina |
| 28 | Mary Holiday | 22 | Wife | None | South Carolina |
| 29 | Joseph Holiday | 2 | son | None | South Carolina |
| 30 | James Holiday | 1 | son | None | South Carolina |
| 31 | Vivian L. Holiday | 0 | daughter | None | South Carolina |
| 32 | Collie Felder | 66 | Head | Farmer | South Carolina |
| 33 | Sallie T. Felder | 63 | wife | None | South Carolina |
| 34 | George Felder | 14 | son | Farm Labor | South Carolina |
| 35 | Clifton Felder | 10 | son | None | South Carolina |
| 36 | Langston Conyers | 69 | Head | Farmer | South Carolina |
| 37 | Pauline Conyers | 59 | wife | None | South Carolina |
| 38 | Clyde Conyers | 17 | son | Farm Labor | South Carolina |
| 39 | Rosaline Conyers | 15 | daughter | None | South Carolina |
| 40 | Frank Conyers | 12 | son | None | South Carolina |
| 41 | Bessie Conyers | 1 | grand daughter | None | South Carolina |
| 42 | Dave Wetherspoon | 49 | Head | Farmer | South Carolina |
| 43 | Mary Wetherspoon | 39 | Wife | None | South Carolina |
| 44 | Willie Wetherspoon | 19 | son | Labor | South Carolina |
| 45 | Emma Wetherspoon | 16 | daughter | None | South Carolina |
| 46 | Heather Wetherspoon | 13 | daughter | None | South Carolina |
| 47 | Lana Wetherspoon | 8 | grand daughter | None | South Carolina |
| 48 | William Wetherspoon | 5 | grand son | None | South Carolina |
| 49 | Cyprian Brogdon | 71 | Head | Farmer | South Carolina |
| 50 | Julia Brogdon | 69 | Wife | 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)