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John Bradford — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sumter-County, South Carolina
Our Model Tree links this John Bradford across the 1930 and 1940 US Censuses in Sumter-County, South Carolina (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 8-person household.
Age 16
b. ~1924
Male
Son
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sumter-County, South Carolina |
| Surname | Bradford |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Sumter |
| 1935 Residence (County) | Sumter |
| Additional Details | |
| Hours Worked | 6 |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | Sumter |
| Est. Birth Year | ~1924 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Matilda Powell | Other | — | 88 | ~1852 |
| Harriet Bradford | Spouse | — | 51 | ~1889 |
| James Bradford | Head | — | 56 | ~1884 |
| Hugh Bradford | Son | — | 19 | ~1921 |
| William Bradford | Son | — | 13 | ~1927 |
| John Bradford | Son | — | 16 | ~1924 |
| Nettie Powell | Other | — | 55 | ~1885 |
| Richard Bradford | Son | — | 26 | ~1914 |
Census Appearances
1930
Sumter, South …
Son, age 6
Sumter, South Carolina · implied b. ~1924 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bradford |
| Given Name | John |
| 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 |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Sumter-County, South …
Son, age 16
Sumter-County, South Carolina · implied b. ~1924 — 8 household members
| Surname | Bradford |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Sumter |
| 1935 Residence (County) | Sumter |
| Hours Worked | 6 |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 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 John Bradford across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Bradford
Son · 1940 · age 16 · b. ~1924 · South Carolina
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Sibling
Richard Bradford
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hugh Bradford
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Bradford
Sibling · 1940 · age 13
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 — Sumter-County, South Carolina
Open full size
1940 US Federal Census — Sumter-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03842-00170)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Isaac S Best | 46 | Head | Insurance Agent | Louisiana |
| 2 | Agile Bowen Best | 20 | Wife | — | South Carolina |
| 3 | Leroy Best | 12 | Son | — | South Carolina |
| 4 | Robert E Conyers | 32 | Head | Insurance Agent | South Carolina |
| 5 | Rosie Conyers | 31 | Wife | Trained Nurse | South Carolina |
| 6 | Abbie Pinkley | 61 | Head | — | South Carolina |
| 7 | Edward Pinkley | 39 | Son | Assistant Road Builder | South Carolina |
| 8 | Mary E Brown | 62 | Head | — | South Carolina |
| 9 | Frances Brown | 20 | Daughter | Stenographer | South Carolina |
| 10 | Archie Lynch | 36 | Head | Salesman | South Carolina |
| 11 | Reta Lynch | 27 | Wife | Cashier | South Carolina |
| 12 | Carolyn Lynch | 6 | Daughter | — | South Carolina |
| 13 | Jack Coggins | 22 | Lodger | Cook | North Carolina |
| 14 | P. F. Van Pelt | 55 | Lodger | Cook | North Carolina |
| 15 | Thelma Gaston | 32 | Head | Typing Clerk | South Carolina |
| 16 | Goldie Gaston | 35 | Sister | Secretary | South Carolina |
| 17 | Lenore Gaston | 33 | Sister | Statistician | South Carolina |
| 18 | John K Davis | 30 | Head | Engineer | South Carolina |
| 19 | Margaret Davis | 25 | Wife | — | South Carolina |
| 20 | Marjean Davis | 2 | Daughter | 0 | Alabama |
| 21 | Lucius A Lawrence | 60 | Head | Machinist Helper | South Carolina |
| 22 | Ida Lawrence | 53 | Wife | — | South Carolina |
| 23 | Pearl Lawrence | 24 | Daughter | Bookkeeper | South Carolina |
| 24 | Irma Lawrence | 21 | Daughter | Bookkeeper | South Carolina |
| 25 | Lucius A Jr Lawrence | 17 | Son | — | South Carolina |
| 26 | James W Bradford | 56 | Head | Officer | South Carolina |
| 27 | Harriet Bradford | 51 | Wife | — | South Carolina |
| 28 | Richard Bradford | 26 | Son | Office Work | South Carolina |
| 29 | Hugh Bradford | 19 | Son | — | South Carolina |
| 30 | John Bradford THIS PERSON | 16 | Son | — | South Carolina |
| 31 | William Bradford | 13 | Son | — | South Carolina |
| 32 | Matilda Powell | 88 | Mother in law | — | South Carolina |
| 33 | Nettie Powell | 55 | Sister in law | Practical Nurse | South Carolina |
| 34 | Harry Gerry | 58 | Head | Manager | South Carolina |
| 35 | Rita Gerry | 51 | Wife | — | South Carolina |
| 36 | Maxwell Gerry | 24 | Son | Salesman | South Carolina |
| 37 | Henry E Mims | 32 | Head | Laborer | South Carolina |
| 38 | Margaret Mims | 21 | Wife | Mat Worker | South Carolina |
| 39 | Marie Holladay | 41 | Head | Librarian | South Carolina |
| 40 | Talva Holladay | 15 | Son | — | South Carolina |
Related Census Records
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)