JP
John Porter — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sumter-County, South Carolina
Our Model Tree links this John Porter across the 1930 and 1940 US Censuses in Sumter-County, South Carolina (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 11-person household.
Age 18
b. ~1922
Male
Son
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sumter-County, South Carolina |
| Surname | Porter |
| Given Name | John T |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 18 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Providence twp |
| 1935 Residence (County) | Sumter |
| Additional Details | |
| Highest Grade | No 2 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | Providence Twp |
| Est. Birth Year | ~1922 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Althea Porter | Daughter | — | 4 | ~1936 |
| Lottie Porter | Daughter | — | 10 | ~1930 |
| Nathaniel Porter | Head | — | 44 | ~1896 |
| Bernice Butler | Other | — | 27 | ~1913 |
| Ellis Porter | Son | — | 8 | ~1932 |
| Lewis Porter | Son | — | 17 | ~1923 |
| James Porter | Son | — | 20 | ~1920 |
| John Porter | Son | — | 18 | ~1922 |
| Carney Porter | Son | — | 12 | ~1928 |
| Francis Porter | Son | — | 14 | ~1926 |
| Francis Porter | Spouse | — | 40 | ~1900 |
Census Appearances
1930
Sumter, South …
Son, age 9
Sumter, South Carolina · implied b. ~1921 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Porter |
| Given Name | John L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 9 |
| 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 |
1940
Sumter-County, South …
Son, age 18
Sumter-County, South Carolina · implied b. ~1922 — 11 household members
| Surname | Porter |
| Given Name | John T |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 18 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Providence twp |
| 1935 Residence (County) | Sumter |
| Highest Grade | No 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 Porter across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Porter
Son · 1940 · age 18 · b. ~1922 · South Carolina
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Sibling
Lottie Porter
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Althea Porter
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ellis Porter
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lewis Porter
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carney Porter
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Porter
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Porter
Sibling · 1940 · age 14
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-t0627-03841-00373)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Harmon Rembert | 15 | Son | — | South Carolina |
| 2 | Bernie Rembert | 14 | Son | — | South Carolina |
| 3 | Viola Rembert | 12 | Daughter | — | South Carolina |
| 4 | Anna Lee Rembert | 10 | Daughter | — | South Carolina |
| 5 | John F Rembert | 8 | Son | — | South Carolina |
| 6 | Alphonso Porter | 33 | Head | Farmer | South Carolina |
| 7 | Lottie Porter | 32 | Wife | Farm Laborer | South Carolina |
| 8 | Maggie A Porter | 12 | Daughter | — | South Carolina |
| 9 | Bertha M Porter | 10 | Daughter | — | South Carolina |
| 10 | James E Porter | 9 | Son | — | South Carolina |
| 11 | Christina Porter | 7 | Daughter | — | South Carolina |
| 12 | Alphonso Jr Porter | 5 | Son | — | South Carolina |
| 13 | Ruby Porter | 3 | Daughter | — | South Carolina |
| 14 | Minnie A Porter | 2 | Daughter | — | South Carolina |
| 15 | Bernie Porter | 1 | Son | — | South Carolina |
| 16 | Nathaniel Porter | 44 | Head | Farmer | South Carolina |
| 17 | Francis Porter | 40 | Wife | Farm Laborer | South Carolina |
| 18 | James E Porter | 20 | Son | — | South Carolina |
| 19 | John T Porter THIS PERSON | 18 | Son | — | South Carolina |
| 20 | Lewis W Porter | 17 | Son | — | South Carolina |
| 21 | Francis M Porter | 14 | Son | — | South Carolina |
| 22 | Carney Earl Porter | 12 | Son | — | South Carolina |
| 23 | Lottie Lee Porter | 10 | Daughter | — | South Carolina |
| 24 | Ellis L Porter | 8 | Son | — | South Carolina |
| 25 | Althea D Porter | 4 | Daughter | — | South Carolina |
| 26 | Bernice Butler | 27 | Sister-in-law | — | South Carolina |
| 27 | Eugene Brunson | 24 | Head | Farmer | South Carolina |
| 28 | Sallie Brunson | 24 | Wife | Farm Laborer | South Carolina |
| 29 | Eugene Brunson | 5 | Son | — | South Carolina |
| 30 | Ruth Brunson | 4 | Daughter | — | S. Carolina |
| 31 | Jim Jones | 55 | Head | — | South Carolina |
| 32 | Edna Jones | 50 | Wife | — | South Carolina |
| 33 | Dorothy Jones | 15 | Daughter | — | South Carolina |
| 34 | John E Jones | 12 | Son | — | South Carolina |
| 35 | David Jones | 8 | Son | — | S. Carolina |
| 36 | Boston Brown | 51 | Head | Farmer | South Carolina |
| 37 | Camilla Brown | 56 | Wife | Farm Laborer | South Carolina |
| 38 | Herbert Brown | 14 | Grandson | — | South Carolina |
| 39 | Bernice Brown | 12 | Granddaughter | — | South Carolina |
| 40 | Pearline Brown | 10 | Granddaughter | — | South Carolina |
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)