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.~1927), then head of a 12-person household.
Age 13
b. ~1927
Male
Son
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sumter-County, South Carolina |
| Surname | Porter |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Providence Township |
| 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 Township |
| Est. Birth Year | ~1927 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Pauline Porter | Daughter | — | 17 | ~1923 |
| Harriet Porter | Daughter | — | 4 | ~1936 |
| Mary Porter | Daughter | — | 9 | ~1931 |
| Ruth Porter | Daughter | — | 11 | ~1929 |
| David Porter | Head | — | 58 | ~1882 |
| George Porter | Son | — | 18 | ~1922 |
| John Porter | Son | — | 13 | ~1927 |
| Joseph Porter | Son | — | 20 | ~1920 |
| James Porter | Son | — | 15 | ~1925 |
| David Porter | Son | — | 5 | ~1935 |
| Daniel Porter | Son | — | 22 | ~1918 |
| Annie Porter | Spouse | — | 45 | ~1895 |
Census Appearances
1930
Sumter, South …
Son, age 2
Sumter, South Carolina · implied b. ~1928 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Porter |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 2 |
| 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 13
Sumter-County, South Carolina · implied b. ~1927 — 12 household members
| Surname | Porter |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Providence Township |
| 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 13 · b. ~1927 · South Carolina
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Sibling
Mary Porter
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Pauline Porter
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Porter
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Porter
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Porter
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Porter
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Porter
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Porter
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harriet Porter
Sibling · 1940 · age 4
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-t0627-03841-00421)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank Matthews | 39 | Head | Operator | South Carolina |
| 2 | Iva Matthews | 29 | Wife | — | South Carolina |
| 3 | Joseph Matthews | 13 | Son | — | South Carolina |
| 4 | Sadie Matthews | 9 | Daughter | — | South Carolina |
| 5 | John Matthews | 7 | Son | — | South Carolina |
| 6 | James Matthews | 6 | Son | — | South Carolina |
| 7 | Frank Jr Matthews | 4 | Son | — | South Carolina |
| 8 | Leona Gamble | 40 | Head | Farm Laborer | South Carolina |
| 9 | Vermelle Gamble | 10 | Daughter | — | South Carolina |
| 10 | Taylor Gamble | 8 | Son | — | South Carolina |
| 11 | Lirdie Gamble | 5 | Son | — | South Carolina |
| 12 | Leona Gamble | 3 | Daughter | — | South Carolina |
| 13 | Fannie Gamble | 1 | Daughter | — | South Carolina |
| 14 | Albert Freeze | 27 | Head | Farm Laborer | South Carolina |
| 15 | Willie Freeze | 25 | Wife | — | South Carolina |
| 16 | Edna Freeze | 12 | Daughter | — | South Carolina |
| 17 | Elliot Freeze | 10 | Son | — | South Carolina |
| 18 | Frances Freeze | 9 | Son | — | South Carolina |
| 19 | Mary Freeze | 6 | Daughter | — | South Carolina |
| 20 | John Freeze | 4 | Son | — | South Carolina |
| 21 | Lottie Freeze | 3 | Daughter | — | South Carolina |
| 22 | Freeze Freeze | 2 | Son | — | South Carolina |
| 23 | David Sr Porter | 58 | Head | Operator | South Carolina |
| 24 | Annie Porter | 45 | Wife | — | South Carolina |
| 25 | Daniel Porter | 22 | Son | Farm Laborer | South Carolina |
| 26 | Joseph Porter | 20 | Son | Farm Laborer | South Carolina |
| 27 | George Porter | 18 | Son | Farm Laborer | South Carolina |
| 28 | Pauline Porter | 17 | Daughter | — | South Carolina |
| 29 | James Porter | 15 | Son | — | South Carolina |
| 30 | John Porter THIS PERSON | 13 | Son | — | South Carolina |
| 31 | Ruth Lee Porter | 11 | Daughter | — | South Carolina |
| 32 | Mary Porter | 9 | Daughter | — | South Carolina |
| 33 | David Jr Porter | 5 | Son | — | South Carolina |
| 34 | Harriet Porter | 4 | Daughter | — | South Carolina |
| 35 | William Dixon | 42 | Head | Operator | South Carolina |
| 36 | Julia Dixon | 39 | Wife | — | South Carolina |
| 37 | Annie Dixon | 20 | Daughter | — | South Carolina |
| 38 | William Dixon | 18 | Son | Farm Laborer | South Carolina |
| 39 | Cora Lee Dixon | 16 | Daughter | — | South Carolina |
| 40 | Bernice Dixon | 14 | Daughter | — | 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)