MJ
Mary Jefferson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Lee, South Carolina
Our Model Tree links this Mary Jefferson across the 1920 and 1930 US Censuses in Lee, 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 | Lee, South Carolina |
| Surname | Jefferson |
| Given Name | Mary |
| 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 | none |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | St Charles Township Part |
| 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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Adam Jefferson | Son | — | 11 | ~1919 |
| Rebecca Jefferson | Other | — | 36 | ~1894 |
| Alexander Jefferson | Son | — | 6 | ~1924 |
| Adam Jefferson | Head | — | 44 | ~1886 |
| Irene Jefferson | Daughter | — | 8 | ~1922 |
| Joseph Jefferson | Son | — | 16 | ~1914 |
| Mary Jefferson | Daughter | — | 18 | ~1912 |
| Rosa Jefferson | Daughter | — | 14 | ~1916 |
| Henry Jefferson | Son | — | 10 | ~1920 |
| Hattie Jefferson | Other | — | 19 | ~1911 |
Census Appearances
1920
Lee, South …
Daughter, age 8
Lee, South Carolina · implied b. ~1912 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jefferson |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 8 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | none |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1930
Lee, South …
Daughter, age 18
Lee, South Carolina · implied b. ~1912 — 10 household members
| Surname | Jefferson |
| Given Name | Mary |
| 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 | none |
| 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 Lee, South Carolina, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Jefferson
Daughter · 1930 · age 18 · b. ~1912 · South Carolina
★ You are viewing this record
Sibling
Rosa Jefferson
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Jefferson
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Jefferson
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alexander Jefferson
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Adam Jefferson
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Jefferson
Sibling · 1930 · age 16
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 — Lee, South Carolina
Open full size
1930 US Federal Census — Lee, South Carolina
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2203unit:1082)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Hugh Peeples | 12 | Son | None | South Carolina |
| 2 | Annie D Peeples | 40 | Head | Farmer | South Carolina |
| 3 | Mary L Peeples | 40 | Wife-H | None | South Carolina |
| 4 | Willie Peeples | 10 | Son | Farm Laborer | South Carolina |
| 5 | Lucile Peeples | 8 | Daughter | None | South Carolina |
| 6 | Purdy Atkinson | 34 | Head | Farmer | South Carolina |
| 7 | Lula L Atkinson | 27 | Wife-H | None | South Carolina |
| 8 | Ola Atkinson | 11 | Daughter | None | South Carolina |
| 9 | Thelma Atkinson | 9 | Daughter | None | South Carolina |
| 10 | Oliver Atkinson | 7 | Daughter | None | South Carolina |
| 11 | James P Atkinson | 5 | Son | None | South Carolina |
| 12 | Lola Atkinson | 2 | Daughter | None | South Carolina |
| 13 | Evaline Atkinson | 0 | Daughter | None | South Carolina |
| 14 | Situra Daniels | 76 | Head-H | Farmer | South Carolina |
| 15 | Sarah Daniels | 44 | Boarder | None | South Carolina |
| 16 | Eliza Wilson | 22 | Head-H | None | South Carolina |
| 17 | David Wilson | 4 | Son | None | South Carolina |
| 18 | Frances Wilson | 2 | Daughter | None | South Carolina |
| 19 | Lawrence Wilson | 0 | Son | None | South Carolina |
| 20 | Albertus Vaughn | 46 | Head | Farmer | South Carolina |
| 21 | Flora Vaughn | 41 | Wife-H | None | South Carolina |
| 22 | Albertus Joiner | 8 | Grandson | None | South Carolina |
| 23 | Adam Jefferson | 44 | Head | Farmer | South Carolina |
| 24 | Rebecca Jefferson | 36 | Wife-H | None | South Carolina |
| 25 | Mary Jefferson THIS PERSON | 18 | Daughter | None | South Carolina |
| 26 | Joseph Jefferson | 16 | Son | Farm Laborer | South Carolina |
| 27 | Rosa Jefferson | 14 | Daughter | None | South Carolina |
| 28 | Adam Jr Jefferson | 11 | Son | None | South Carolina |
| 29 | Henry Jefferson | 10 | Son | None | South Carolina |
| 30 | Irene Jefferson | 8 | Daughter | None | South Carolina |
| 31 | Alexander Jefferson | 6 | Son | None | South Carolina |
| 32 | Hattie Jefferson | 19 | Sister | Farm Laborer | South Carolina |
| 33 | Andrew Benjamin | 19 | Head | Farm Laborer | South Carolina |
| 34 | Margaret Benjamin | 16 | Wife-H | None | South Carolina |
| 35 | Alex Montgomery | 48 | Head | Farm Laborer | South Carolina |
| 36 | Catherine Montgomery | 46 | Wife-H | Servant | South Carolina |
| 37 | Helen Montgomery | 19 | Daughter | Laundress | South Carolina |
| 38 | James M Montgomery | 10 | Son | Farm Laborer | South Carolina |
| 39 | Mary Montgomery | 5 | Grand Daughter | None | South Carolina |
| 40 | Harry Montgomery | 2 | Grand Son | None | South Carolina |
| 41 | Joseph Isaac | 50 | Head | Farmer | South Carolina |
| 42 | Phastoria Isaac | 38 | Wife-H | None | South Carolina |
| 43 | Hattie G Isaac | 13 | Daughter | None | South Carolina |
| 44 | Annie L Isaac | 11 | Daughter | None | South Carolina |
| 45 | Jannie L Isaac | 9 | Daughter | None | South Carolina |
| 46 | Gladys Isaac | 7 | Daughter | None | South Carolina |
| 47 | Joseph Jr Isaac | 5 | Son | None | South Carolina |
| 48 | Willene Isaac | 3 | Daughter | None | South Carolina |
| 49 | Fullie Isaac | 1 | Son | None | South Carolina |
| 50 | Henry Wilson | 70 | Head-H | Farmer | 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)