MK
Mary Knox — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Greenville, South Carolina
Our Model Tree links this Mary Knox across the 1930 and 1940 US Censuses in Greenville, South Carolina (XGBoost, ~Confirmed) — first a daughter (b.~1918), then head of a 6-person household.
Age 12
b. ~1918
Female
Daughter
Born: South Carolina
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Greenville, South Carolina |
| Surname | Knox |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| 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 | Parker Mill Village |
| 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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Eleanor Knox | Spouse | — | 32 | ~1898 |
| Irma Knox | Daughter | — | 10 | ~1920 |
| Oscar Knox | Head | — | 35 | ~1895 |
| Mary Knox | Daughter | — | 12 | ~1918 |
| Lillian Knox | Daughter | — | 14 | ~1916 |
| Mildred Knox | Daughter | — | 8 | ~1922 |
Census Appearances
1930
Greenville, South …
Daughter, age 12
Greenville, South Carolina · implied b. ~1918 — 6 household members
| Surname | Knox |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| 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 |
1940
Greenville-County, South …
Head, age 23
Greenville-County, South Carolina · implied b. ~1917
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Knox |
| Given Name | Marie |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Greenville City |
| 1935 Residence (County) | Greenville |
| Occupation | Nurse |
| Industry | Private Practice |
| Class of Worker | PW |
| Hours Worked | 84 |
| Highest Grade | H 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 Knox across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Knox
Daughter · 1930 · age 12 · b. ~1918 · South Carolina
★ You are viewing this record
Sibling
Irma Knox
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillian Knox
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Knox
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 — Greenville, South Carolina
Open full size
1930 US Federal Census — Greenville, South Carolina
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2198unit:0133)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Oscar L Knox | 35 | Head | Laborer | South Carolina |
| 52 | Eleanor Knox | 32 | Wife | — | South Carolina |
| 53 | Lillian Knox | 14 | Daughter | — | South Carolina |
| 54 | Mary Knox THIS PERSON | 12 | Daughter | — | South Carolina |
| 55 | Irma Knox | 10 | Daughter | — | South Carolina |
| 56 | Mildred Knox | 8 | Daughter | — | South Carolina |
| 57 | James H Brown | 38 | Head | Laborer | South Carolina |
| 58 | Mary Brown | 31 | Wife | — | South Carolina |
| 59 | John B Brown | 14 | Son | — | South Carolina |
| 60 | James Brown | 11 | Son | — | South Carolina |
| 61 | Robert Brown | 9 | Son | — | South Carolina |
| 62 | Frances Brown | 6 | Daughter | — | South Carolina |
| 63 | Albert Smith | 22 | Head | Laborer | South Carolina |
| 64 | Ruth Smith | 18 | Wife | — | South Carolina |
| 65 | Albert Jr Smith | 0 | Son | — | South Carolina |
| 66 | Patterson | 41 | Head | Laborer | South Carolina |
| 67 | Lula Patterson | 37 | Wife | — | South Carolina |
| 68 | James Patterson | 10 | Son | — | South Carolina |
| 69 | Mary Patterson | 2 | Daughter | — | South Carolina |
| 70 | Lula Patterson | 0 | Daughter | — | South Carolina |
| 71 | Doris Patterson | 0 | Daughter | — | South Carolina |
| 72 | Lois Patterson | 0 | Daughter | — | South Carolina |
| 73 | Lillian Patterson | 0 | Daughter | — | South Carolina |
| 74 | Lula Patterson | 0 | Daughter | — | South Carolina |
| 75 | Eunice Patterson | 0 | Daughter | — | South Carolina |
| 76 | Hazel Patterson | 0 | Daughter | — | South Carolina |
| 77 | Lula Patterson | 0 | Daughter | — | South Carolina |
| 78 | Lula Patterson | 0 | Daughter | — | South Carolina |
| 79 | Lula Patterson | 0 | Daughter | — | South Carolina |
| 80 | Clyde W Nix | 26 | Head | Laborer | Georgia |
| 81 | Lula Nix | 25 | Wife | — | South Carolina |
| 82 | James Nix | 7 | Son | — | South Carolina |
| 83 | Lula Nix | 5 | Daughter | — | South Carolina |
| 84 | Lula Nix | 3 | Daughter | — | South Carolina |
| 85 | Lula Nix | 1 | Daughter | — | South Carolina |
| 86 | Lula Nix | 0 | Daughter | — | South Carolina |
| 87 | Lula Nix | 0 | Daughter | — | South Carolina |
| 88 | Lula Nix | 0 | Daughter | — | South Carolina |
| 89 | Lula Nix | 0 | Daughter | — | South Carolina |
| 90 | Lula Nix | 0 | Daughter | — | South Carolina |
| 91 | Lula Nix | 0 | Daughter | — | South Carolina |
| 92 | Lula Nix | 0 | Daughter | — | South Carolina |
| 93 | Lula Nix | 0 | Daughter | — | South Carolina |
| 94 | Lula Nix | 0 | Daughter | — | South Carolina |
| 95 | Lula Nix | 0 | Daughter | — | South Carolina |
| 96 | Lula Nix | 0 | Daughter | — | South Carolina |
| 97 | Roy Carver | 21 | Head | Laborer | South Carolina |
| 98 | Annie Carver | 23 | Wife | — | South Carolina |
| 99 | Lula Carver | 3 | Daughter | — | South Carolina |
| 100 | Melvin Green | 20 | Brother | Laborer | 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)