MJ
Mary Jefferson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Orangeburg, South Carolina
Our Model Tree links this Mary Jefferson across the 1920 and 1930 US Censuses in Orangeburg, South Carolina (XGBoost, ~Confirmed) — first a daughter (b.~1914), then head of a 9-person household.
Age 16
b. ~1914
Female
Daughter
Born: South Carolina
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Orangeburg, South Carolina |
| Surname | Jefferson |
| Given Name | Mary Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 16 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | Orange Township |
| Est. Birth Year | ~1914 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Alberta Jefferson | Daughter | — | 7 | ~1923 |
| Samuel Jefferson | Head | — | 38 | ~1892 |
| Le Jefferson | Son | — | 2 | ~1928 |
| Samuel Jefferson | Son | — | 9 | ~1921 |
| Sonia Jefferson | Other | — | 22 | ~1908 |
| Carrie Jefferson | Daughter | — | 11 | ~1919 |
| Mary Jefferson | Daughter | — | 16 | ~1914 |
| Ethel Jefferson | Daughter | — | 5 | ~1925 |
| Albert Jefferson | Son | — | 8 | ~1922 |
Census Appearances
1920
Orangeburg, South …
Daughter, age 6
Orangeburg, South Carolina · implied b. ~1914 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jefferson |
| Given Name | Mary Lou |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 6 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | none |
| Can Read | No |
| Can Write | No |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1930
Orangeburg, South …
Daughter, age 16
Orangeburg, South Carolina · implied b. ~1914 — 9 household members
| Surname | Jefferson |
| Given Name | Mary Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 16 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| 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 Mary Jefferson across 2 US Census years (1920 and 1930) in Orangeburg, South Carolina, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Jefferson
Daughter · 1930 · age 16 · b. ~1914 · South Carolina
★ You are viewing this record
Sibling
Le Jefferson
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Samuel Jefferson
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carrie Jefferson
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alberta Jefferson
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ethel Jefferson
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Albert Jefferson
Sibling · 1930 · age 8
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 — Orangeburg, South Carolina
Open full size
1930 US Federal Census — Orangeburg, South Carolina
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2208unit:0718)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Catherine Brown | 22 | Wife-H | — | South Carolina |
| 52 | Ruby Brown | 4 | Daughter | — | South Carolina |
| 53 | John Jr Brown | 2 | Son | — | South Carolina |
| 54 | Joseph Brown | 0 | Son | — | South Carolina |
| 55 | Doris Guerard | 54 | Father-in-law | Farm Laborer | South Carolina |
| 56 | Ella Guerard | 53 | Mother-in-law | — | South Carolina |
| 57 | George Guerard | 13 | Brother-in-law | — | South Carolina |
| 58 | Dennis Jr Guerard | 15 | Brother-in-law | — | South Carolina |
| 59 | Alphonso Guerard | 17 | Brother-in-law | — | South Carolina |
| 60 | Walter Guerard | 10 | Brother-in-law | — | South Carolina |
| 61 | James Guerard | 8 | Brother-in-law | — | South Carolina |
| 62 | John Evans | 50 | Lodger | Odd Jobs | South Carolina |
| 63 | Carrie Cowan | 48 | Head-H | — | South Carolina |
| 64 | Rebecca Smith | 27 | Daughter | Housekeeper | South Carolina |
| 65 | William Glover | 13 | Grandson | — | South Carolina |
| 66 | Samuel Jefferson | 38 | Head | Farm Laborer | South Carolina |
| 67 | Sonia Jefferson | 22 | Wife-H | — | South Carolina |
| 68 | Mary Lou Jefferson THIS PERSON | 16 | Daughter | — | South Carolina |
| 69 | Carrie Lou Jefferson | 11 | Daughter | — | South Carolina |
| 70 | Samuel Jr Jefferson | 9 | Son | — | South Carolina |
| 71 | Albert Jefferson | 8 | Son | — | South Carolina |
| 72 | Alberta Jefferson | 7 | Daughter | — | South Carolina |
| 73 | Ethel Jefferson | 5 | Daughter | — | South Carolina |
| 74 | Le Roy Jefferson | 2 | Son | — | South Carolina |
| 75 | Katie Robinson | 27 | Head-H | — | South Carolina |
| 76 | James Jr Robinson | 10 | Son | — | South Carolina |
| 77 | Thelma Robinson | 8 | Daughter | — | South Carolina |
| 78 | Addie M Robinson | 6 | Daughter | — | South Carolina |
| 79 | Alford Elmore | 24 | Brother | Laborer | South Carolina |
| 80 | Bessie Elmore | 20 | Sister | — | South Carolina |
| 81 | Chas Simington | 31 | Head | Laborer | South Carolina |
| 82 | Ethel Simington | 24 | Wife-H | Laborer | South Carolina |
| 83 | Carrie Simington | 7 | Son | — | South Carolina |
| 84 | Minnie Grant | 40 | Sister | House Maid | South Carolina |
| 85 | Bernice Grant | 9 | Niece | — | South Carolina |
| 86 | Geneva Grant | 7 | Niece | — | South Carolina |
| 87 | Genette Grant | 7 | Niece | — | South Carolina |
| 88 | Rosa Carter | 60 | Mother | — | South Carolina |
| 89 | Henry Woodward | 62 | Head | Clergyman | South Carolina |
| 90 | Frances Woodward | 56 | Wife-H | — | South Carolina |
| 91 | Pearl Whitmore | 35 | Daughter | Cook | South Carolina |
| 92 | Mildred Woodward | 18 | Daughter | — | South Carolina |
| 93 | Annie Woodward | 17 | Daughter | — | South Carolina |
| 94 | Robert Woodward | 15 | Son | Delivery Boy | South Carolina |
| 95 | George Whitman | 38 | Son-in-law | Laborer | South Carolina |
| 96 | Willie Smith | 31 | Head | Laborer | South Carolina |
| 97 | Eva Smith | 25 | Wife-H | — | South Carolina |
| 98 | Marion Wiley | 36 | Head | Drayman | South Carolina |
| 99 | Queen Wiley | 34 | Wife-H | — | South Carolina |
| 100 | Hampie Wiley | 15 | Daughter | — | 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)