MO
Mary Oliver — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Orangeburg-County, South Carolina
Our Model Tree links this Mary Oliver across the 1930 and 1940 US Censuses in Orangeburg-County, South Carolina (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 10-person household.
Age 14
b. ~1926
Female
Daughter
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Orangeburg-County, South Carolina |
| Surname | Oliver |
| Given Name | Mary Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Felder Township |
| 1935 Residence (County) | Orangeburg |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | 4 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | Felder Township |
| Est. Birth Year | ~1926 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Lottie Oliver | Daughter | — | 7 | ~1933 |
| Mary Oliver | Daughter | — | 14 | ~1926 |
| Thelma Oliver | Daughter | — | 19 | ~1921 |
| Theo Oliver | Head | — | 45 | ~1895 |
| Hayward Oliver | Son | — | 2 | ~1938 |
| Theo Oliver | Son | — | 16 | ~1924 |
| John Oliver | Son | — | 18 | ~1922 |
| Robert Oliver | Son | — | 4 | ~1936 |
| Moses Oliver | Son | — | 10 | ~1930 |
| Minnie Oliver | Spouse | — | 38 | ~1902 |
Census Appearances
1930
Calhoun, South …
Daughter, age 4
Calhoun, South Carolina · implied b. ~1926 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Oliver |
| Given Name | Mary L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 4 |
| 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 |
1940
Orangeburg-County, South …
Daughter, age 14
Orangeburg-County, South Carolina · implied b. ~1926 — 10 household members
| Surname | Oliver |
| Given Name | Mary Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Felder Township |
| 1935 Residence (County) | Orangeburg |
| Class of Worker | 0 |
| Highest Grade | 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 Mary Oliver across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Oliver
Daughter · 1940 · age 14 · b. ~1926 · South Carolina
★ You are viewing this record
Sibling
John Oliver
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Moses Oliver
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thelma Oliver
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theo Oliver
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Oliver
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hayward Oliver
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lottie Oliver
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 — Orangeburg-County, South Carolina
Open full size
1940 US Federal Census — Orangeburg-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03829-00667)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Maurice Williams | 10 | Son | — | South Carolina |
| 2 | Lewis Williams | 8 | Son | — | South Carolina |
| 3 | Gwendolyn Williams | 6 | Daughter | — | South Carolina |
| 4 | June Ethel Williams | 4 | Daughter | — | South Carolina |
| 5 | Leo B. Williams | 36 | Head | Farmer | South Carolina |
| 6 | Ruth Williams | 36 | Wife | — | South Carolina |
| 7 | Theo. Oliver | 45 | Head | Farmer | South Carolina |
| 8 | Minnie Oliver | 38 | Wife | — | South Carolina |
| 9 | Thelma Oliver | 19 | Daughter | — | South Carolina |
| 10 | John L. Oliver | 18 | Son | Laborer | South Carolina |
| 11 | Theo. Jr. Oliver | 16 | Son | — | South Carolina |
| 12 | Mary Lou Oliver THIS PERSON | 14 | Daughter | — | South Carolina |
| 13 | Moses Oliver | 10 | Son | — | South Carolina |
| 14 | Lottie Bell Oliver | 7 | Daughter | — | South Carolina |
| 15 | Robert Lee Oliver | 4 | Son | — | South Carolina |
| 16 | Hayward Clay Oliver | 2 | Son | — | South Carolina |
| 17 | Harvey Miller | 22 | Head | Laborer | South Carolina |
| 18 | Lettie Miller | 50 | Wife | Laborer | South Carolina |
| 19 | Ruby Miller | 25 | Daughter | Laborer | South Carolina |
| 20 | James C. Anderson | 61 | Head | — | South Carolina |
| 21 | Raymond Anderson | 36 | Son | Brick Layer | South Carolina |
| 22 | Thomas Anderson | 18 | Son | — | South Carolina |
| 23 | Bernadine Anderson | 16 | Daughter | — | South Carolina |
| 24 | L. B. Bergman | 36 | Head | Farmer | South Carolina |
| 25 | Minnie Lee Bergman | 21 | Wife | — | South Carolina |
| 26 | B. J. Bergman | 5 | Son | — | South Carolina |
| 27 | James Bergman | 3 | Son | — | South Carolina |
| 28 | David Lee Bergman | 0 | Son | 0 | South Carolina |
| 29 | J. D. Dantzler | 64 | Head | Farmer | South Carolina |
| 30 | Caroline S. Dantzler | 62 | Sister | — | South Carolina |
| 31 | William P. Keitt | 37 | Head | Laborer | South Carolina |
| 32 | Louie Keitt | 36 | Wife | — | South Carolina |
| 33 | Hercules Keitt | 12 | Son | — | South Carolina |
| 34 | Ulysses Keitt | 10 | Daughter | — | South Carolina |
| 35 | L. C. Keitt | 8 | Son | — | South Carolina |
| 36 | Lois Louise Keitt | 5 | Daughter | — | South Carolina |
| 37 | Mary Keitt | 3 | Daughter | — | South Carolina |
| 38 | William Arthur Keitt | 1 | Son | 0 | South Carolina |
| 39 | John D. Dantzler | 57 | Head | Civil Engr. | South Carolina |
| 40 | Lena Lee Dantzler | 52 | Wife | — | 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)