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John Cain — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sumter-County, South Carolina
Our Model Tree links this John Cain across the 1930 and 1940 US Censuses in Sumter-County, South Carolina (XGBoost, ~Confirmed) — first a son (b.~1918), then head of a 7-person household.
Age 22
b. ~1918
Male
Son
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sumter-County, South Carolina |
| Surname | Cain |
| Given Name | John Ab |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Sumter |
| 1935 Residence (County) | Sumter |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | Sumter |
| 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| William Cain | Head | — | 60 | ~1880 |
| John Cain | Son | — | 22 | ~1918 |
| Marguerite Cain | Daughter | — | 26 | ~1914 |
| Marguerite Cain | Spouse | — | 50 | ~1890 |
| Grace Cain | Daughter | — | 17 | ~1923 |
| Ida Cain | Daughter | — | 29 | ~1911 |
| Emily Cain | Daughter | — | 20 | ~1920 |
Census Appearances
1930
Sumter, South …
Son, age 12
Sumter, South Carolina · implied b. ~1918 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cain |
| Given Name | John N |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Sumter-County, South …
Son, age 22
Sumter-County, South Carolina · implied b. ~1918 — 7 household members
| Surname | Cain |
| Given Name | John Ab |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Sumter |
| 1935 Residence (County) | Sumter |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| 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 Cain across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Cain
Son · 1940 · age 22 · b. ~1918 · South Carolina
★ You are viewing this record
Sibling
Marguerite Cain
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grace Cain
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Emily Cain
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ida Cain
Sibling · 1940 · age 29
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
38 people indexed on this census page (nara:1940:m-t0627-03842-00569)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William G. Cain | 60 | Head | Superintendent | South Carolina |
| 2 | Marguerite Cain | 50 | Wife | — | New York |
| 3 | Ida Cain | 29 | Daughter | Secretary | South Carolina |
| 4 | Marguerite Cain | 26 | Daughter | — | South Carolina |
| 5 | John Ab Cain THIS PERSON | 22 | Son | — | South Carolina |
| 6 | Emily Cain | 20 | Daughter | Assistant Attendance Teacher | South Carolina |
| 7 | Grace Cain | 17 | Daughter | — | South Carolina |
| 9 | Emily Hardaway | 74 | Head | — | South Carolina |
| 10 | Olinship|Olinship Hardaway | 53 | Lodger | — | Virginia |
| 11 | Jane Mikell | 78 | Sister | — | South Carolina |
| 13 | Edgar Ellis | 43 | Head | Superintendent | North Carolina |
| 14 | Emmie Ellis | 42 | Wife | Assistant Superintendent | South Carolina |
| 15 | Jack Ellis | 20 | Son | — | Virginia |
| 16 | Ethel Bradford | 43 | Lodger | Matron | South Carolina |
| 17 | Lossie Boykin | 34 | Lodger | Matron | South Carolina |
| 18 | Rosalie Bradford | 21 | Lodger | — | South Carolina |
| 19 | Marcella Bradford | 20 | Lodger | — | South Carolina |
| 20 | Ethel Bradford | 18 | Lodger | — | South Carolina |
| 21 | Ellen Atkinson | 18 | Lodger | — | South Carolina |
| 22 | Burgess Butler | 18 | Lodger | — | South Carolina |
| 23 | Lester Butler | 14 | Lodger | — | South Carolina |
| 24 | James Compton | 21 | Lodger | — | North Carolina |
| 25 | Mildred Cain | 18 | Lodger | — | South Carolina |
| 26 | Otto Duggan | 19 | Lodger | — | South Carolina |
| 27 | Ernest Duggan | 16 | Lodger | — | South Carolina |
| 28 | Laverne Disher | 13 | Lodger | — | South Carolina |
| 29 | Lottis Disher | 9 | Lodger | — | South Carolina |
| 30 | Charles Disher | 4 | Lodger | — | South Carolina |
| 31 | Barbara Disher | 2 | Lodger | — | South Carolina |
| 32 | Joseph Evans | 18 | Lodger | — | South Carolina |
| 33 | Margaret Freeman | 18 | Lodger | — | South Carolina |
| 34 | Clay Freeman | 16 | Lodger | — | South Carolina |
| 35 | Joan Johnson | 19 | Lodger | — | South Carolina |
| 36 | Baron Johnson | 16 | Lodger | — | South Carolina |
| 37 | Preston Lyles | 19 | Lodger | — | South Carolina |
| 38 | Calvin Lyles | 16 | Lodger | — | South Carolina |
| 39 | Leroy Mcintosh | 18 | Lodger | — | South Carolina |
| 40 | Violet Mcintosh | 16 | Lodger | — | 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)