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John Blackwell — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Spartanburg, South Carolina
Our Model Tree links this John Blackwell across the 1920 and 1930 US Censuses in Spartanburg, South Carolina (XGBoost, ~Confirmed) — first a son (b.~1914), then head of a 8-person household.
Age 16
b. ~1914
Male
Son
Born: South Carolina
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Spartanburg, South Carolina |
| Surname | Blackwell |
| Given Name | John H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Additional Details | |
| Occupation | Spare Hand |
| Industry | Cotton Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Spare Hand |
| Township / Ward | Whitney Mill Town |
| 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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Martha Blackwell | Daughter | — | 8 | ~1922 |
| John Blackwell | Head | — | 41 | ~1889 |
| Rachel Blackwell | Daughter | — | 12 | ~1918 |
| Flossie Blackwell | Spouse | — | 41 | ~1889 |
| Mary Blackwell | Daughter | — | 3 | ~1927 |
| Marilyn Blackwell | Daughter | — | 10 | ~1920 |
| James Blackwell | Son | — | 14 | ~1916 |
| John Blackwell | Son | — | 16 | ~1914 |
Census Appearances
1920
Spartanburg, South …
Son, age 6
Spartanburg, South Carolina · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blackwell |
| Given Name | John R |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| 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
Spartanburg, South …
Son, age 16
Spartanburg, South Carolina · implied b. ~1914 — 8 household members
| Surname | Blackwell |
| Given Name | John H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | Spare Hand |
| Industry | Cotton Mill |
| Class of Worker | W |
| 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 John Blackwell across 2 US Census years (1920 and 1930) in Spartanburg, South Carolina, using XGBoost record linkage.
Show:
This person
Anchor record
John Blackwell
Son · 1930 · age 16 · b. ~1914 · South Carolina
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Sibling
Marilyn Blackwell
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Blackwell
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martha Blackwell
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rachel Blackwell
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Blackwell
Sibling · 1930 · age 3
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 — Spartanburg, South Carolina
Open full size
1930 US Federal Census — Spartanburg, South Carolina
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2212unit:0776)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bynum B. Burnett | 40 | Head | Fireman | North Carolina |
| 2 | Lessie B. Burnett | 34 | Wife | None | Tennessee |
| 3 | Albert B. Burnett | 17 | Son | Oiler | Tennessee |
| 4 | Ruth L. Burnett | 15 | Daughter | None | Texas |
| 5 | Inez H. Burnett | 13 | Daughter | None | Texas |
| 6 | Ruby L. Burnett | 7 | Daughter | None | South Carolina |
| 7 | Horace E. Burnett | 5 | Son | None | South Carolina |
| 8 | Hazel Burnett | 3 | Daughter | None | South Carolina |
| 9 | Eugene Callahan | 54 | Head | Salesman | South Carolina |
| 10 | Ida A. Callahan | 45 | Wife | None | North Carolina |
| 11 | James P. Callahan | 19 | Son | None | South Carolina |
| 12 | John J. Callahan | 17 | Son | None | South Carolina |
| 13 | Mary J. Callahan | 15 | Daughter | None | South Carolina |
| 14 | Clarence E. Callahan | 12 | Son | None | South Carolina |
| 15 | Robert E. Callahan | 10 | Son | None | South Carolina |
| 16 | William R. Callahan | 8 | Son | None | South Carolina |
| 17 | Roy G. Callahan | 6 | Son | None | South Carolina |
| 18 | William B. Cudd | 62 | Head | Roll Coverer | South Carolina |
| 19 | Margaret J. Cudd | 57 | Wife | None | South Carolina |
| 20 | Albert J. Cannon | 47 | Head | Weaver | South Carolina |
| 21 | Alice L. Cannon | 47 | Wife | None | South Carolina |
| 22 | William H. Cannon | 21 | Son | Machinist | South Carolina |
| 23 | Lois A. Thompson | 1 | Granddaughter | None | South Carolina |
| 24 | John F. Blackwell | 41 | Head | Foreman | South Carolina |
| 25 | Flossie R. Blackwell | 41 | Wife | None | South Carolina |
| 26 | John H. Blackwell THIS PERSON | 16 | Son | Spare Hand | South Carolina |
| 27 | James D. Blackwell | 14 | Son | None | South Carolina |
| 28 | Rachel E. Blackwell | 12 | Daughter | None | South Carolina |
| 29 | Marilyn E. Blackwell | 10 | Daughter | None | South Carolina |
| 30 | Martha V. Blackwell | 8 | Daughter | None | South Carolina |
| 31 | Mary L. Blackwell | 3 | Daughter | None | South Carolina |
| 32 | John M. Carry | 41 | Head | Salesman | South Carolina |
| 33 | Theresa F. Carry | 42 | Wife | None | South Carolina |
| 34 | Margaret E. Carry | 8 | Daughter | None | South Carolina |
| 35 | Stephen B. Carry | 4 | Son | None | South Carolina |
| 36 | Charles B. Carry | 2 | Son | None | South Carolina |
| 37 | Inez V. Carry | 0 | Daughter | None | South Carolina |
| 38 | Stephen Griffin | 50 | Head | Laborer | South Carolina |
| 39 | Lizzie J. Griffin | 48 | Wife | House Maid | South Carolina |
| 40 | Robert Ruskey | 57 | Head | Foreman | South Carolina |
| 41 | Harriett A. Ruskey | 52 | Wife | None | South Carolina |
| 42 | Hazel M. Ruskey | 30 | Daughter | Layer | South Carolina |
| 43 | James C. Ruskey | 34 | Head | Salesman | South Carolina |
| 44 | Linnie L. Ruskey | 33 | Wife | None | Tennessee |
| 45 | James L. Ruskey | 14 | Son | None | South Carolina |
| 46 | Robert L. Ruskey | 10 | Son | None | South Carolina |
| 47 | Mary Ruskey | 5 | Daughter | None | South Carolina |
| 48 | Walter H. Bishop | 39 | Head | Cashier | South Carolina |
| 49 | Ruth E. Bishop | 37 | Wife | None | South Carolina |
| 50 | Marion R. Bishop | 14 | Daughter | 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)