JS
John Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Greenville-County, South Carolina
Our Model Tree links this John Sullivan across the 1920, 1930 and 1940 US Censuses in Greenville-County, South Carolina (XGBoost, ~Confirmed), with identified parents Dave — first a head (b.~1900), then head of a 10-person household.
Age 40
b. ~1900
Male
Head
Born: South Carolina
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Greenville-County, South Carolina |
| Surname | Sullivan |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Greenville |
| Additional Details | |
| Occupation | Farm Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 125 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Farm Laborer |
| Township / Ward | Fairview Township |
| Est. Birth Year | ~1900 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Dolly Sullivan | Daughter | — | 4 | ~1936 |
| John Sullivan | Head | — | 40 | ~1900 |
| Oscar Sullivan | Son | — | 11 | ~1929 |
| Marion Sullivan | Son | — | 13 | ~1927 |
| Jean Sullivan | Son | — | 9 | ~1931 |
| E Sullivan | Son | — | 18 | ~1922 |
| James Sullivan | Son | — | 16 | ~1924 |
| Roy Sullivan | Son | — | 2 | ~1938 |
| Grant Sullivan | Son | — | 7 | ~1933 |
| Gertrude Sullivan | Spouse | — | 35 | ~1905 |
Census Appearances
1920
Greenville, South …
Son, age 15
Greenville, South Carolina · implied b. ~1905 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 15 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1930
Greenville, South …
Head, age 26
Greenville, South Carolina · implied b. ~1904 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 26 |
| Marital Status | Married |
| Birthplace | South Carolina |
| Age at First Marriage | 19 |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | Farmer |
| Industry | Gen Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Veteran | No |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Greenville-County, South …
Head, age 40
Greenville-County, South Carolina · implied b. ~1900 — 10 household members
| Surname | Sullivan |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Greenville |
| Occupation | Farm Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 125 |
| Highest Grade | No 4 |
| 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 Sullivan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Dave Sullivan (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Dave Sullivan
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Sullivan
Head · 1940 · age 40 · b. ~1900 · South Carolina
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Greenville-County, South Carolina
Open full size
1940 US Federal Census — Greenville-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03811-00880)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John W. Knight | 5 | Son | — | South Carolina |
| 2 | Clyde H. Thompson | 37 | Head | Farmer | South Carolina |
| 3 | Eloise Thompson | 37 | Wife | — | South Carolina |
| 4 | Charles E. Thompson | 16 | Son | — | South Carolina |
| 5 | Bonnie M. Thompson | 14 | Daughter | — | South Carolina |
| 6 | Lois B. Thompson | 11 | Daughter | — | South Carolina |
| 7 | John R. Thompson | 9 | Son | — | South Carolina |
| 8 | Marlene J. Thompson | 5 | Daughter | — | South Carolina |
| 9 | Betty L. Thompson | 3 | Daughter | — | South Carolina |
| 10 | J. Belle Leake | 78 | Head | Farmer | South Carolina |
| 11 | Ada Cox | 47 | Daughter | — | South Carolina |
| 12 | Sam L. Leake | 44 | Head | Farmer | South Carolina |
| 13 | Allene Leake | 48 | Wife | — | South Carolina |
| 14 | Robert B. Nesmith | 77 | Head | Operator | South Carolina |
| 15 | Lucinda Nesmith | 80 | Wife | — | South Carolina |
| 16 | Ruby L. Nesmith | 16 | Grandchief | — | South Carolina |
| 17 | Annie M. Martin | 28 | Daughter | Farm Laborer | South Carolina |
| 18 | Seawright C. Mcdaniel | 64 | Head | Farmer | South Carolina |
| 19 | Mary W. Mcdaniel | 62 | Wife | — | South Carolina |
| 20 | James T. Walker | 23 | Lodger | Farm Laborer | South Carolina |
| 21 | John H. Sullivan THIS PERSON | 40 | Head | Farm Laborer | South Carolina |
| 22 | Gertrude Sullivan | 35 | Wife | — | South Carolina |
| 23 | E. W. Sullivan | 18 | Son | Farm Laborer | South Carolina |
| 24 | James Sullivan | 16 | Son | — | South Carolina |
| 25 | Marion Sullivan | 13 | Son | — | South Carolina |
| 26 | Oscar Sullivan | 11 | Son | — | South Carolina |
| 27 | Jean Sullivan | 9 | Son | — | South Carolina |
| 28 | Grant B. Sullivan | 7 | Son | — | South Carolina |
| 29 | Dolly B. Sullivan | 4 | Daughter | — | South Carolina |
| 30 | Roy M. Sullivan | 2 | Son | — | South Carolina |
| 31 | Luke J. Anderson | 47 | Head | Laborer | South Carolina |
| 32 | Callie B. Anderson | 45 | Wife | Laborer | South Carolina |
| 33 | Annie M. Anderson | 19 | Daughter | Servant | South Carolina |
| 34 | Bertha L. Anderson | 18 | Daughter | Servant | South Carolina |
| 35 | Maggie L. Anderson | 16 | Daughter | — | South Carolina |
| 36 | Corona Anderson | 14 | Daughter | — | South Carolina |
| 37 | Wray B. Anderson | 12 | Daughter | — | South Carolina |
| 38 | Willie M. Anderson | 10 | Daughter | — | South Carolina |
| 39 | Roberta A. Anderson | 8 | Daughter | — | South Carolina |
| 40 | Will R. Johnson | 24 | Head | Laborer | South Carolina |
Pedigree Summary
John
Gen 1 · 1 parents
~0.92
Max depth 4 (1900–1950 window)
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)