JB
John Barr — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Williamsburg-County, South Carolina
Our Model Tree links this John Barr across the 1930 and 1940 US Censuses in Williamsburg-County, South Carolina (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 9-person household.
Age 18
b. ~1922
Female
Daughter
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Williamsburg-County, South Carolina |
| Surname | Barr |
| Given Name | John B. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Indian Township |
| 1935 Residence (County) | Williamsburg |
| Additional Details | |
| Occupation | Farm Laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 22 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Farm Laborer |
| Township / Ward | Indian Township |
| 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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Pete Barr | Son | — | 3 | ~1937 |
| Cleo Barr | Daughter | — | 25 | ~1915 |
| Eugene Barr | Son | — | 15 | ~1925 |
| Benjamin Barr | Son | — | 20 | ~1920 |
| Thomas Barr | Son | — | 7 | ~1933 |
| John Barr | Daughter | — | 18 | ~1922 |
| Mared Barr | Son | — | 16 | ~1924 |
| Wade Barr | Head | — | 52 | ~1888 |
| Kate Barr | Spouse | — | 45 | ~1895 |
Census Appearances
1930
Williamsburg, South …
Other, age 6
Williamsburg, South Carolina · implied b. ~1924 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Barr |
| Given Name | Josephine |
| Relationship to Head | Niece |
| Sex | F |
| Color / Race | Black |
| 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
Williamsburg-County, South …
Daughter, age 18
Williamsburg-County, South Carolina · implied b. ~1922 — 9 household members
| Surname | Barr |
| Given Name | John B. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Indian Township |
| 1935 Residence (County) | Williamsburg |
| Occupation | Farm Laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 22 |
| Income (1939) | 0 |
| Highest Grade | H 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 Barr across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Barr
Daughter · 1940 · age 18 · b. ~1922 · South Carolina
★ You are viewing this record
Sibling
Mared Barr
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Barr
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Benjamin Barr
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Cleo Barr
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Barr
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Pete Barr
Sibling · 1940 · age 3
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 — Williamsburg-County, South Carolina
Open full size
1940 US Federal Census — Williamsburg-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03844-00849)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mae Matthews | 18 | Daughter | Farm Laborer | South Carolina |
| 42 | Lois Matthews | 17 | Daughter | Farm Laborer | South Carolina |
| 43 | Allea Matthews | 15 | Daughter | — | South Carolina |
| 44 | Neta Matthews | 13 | Daughter | — | South Carolina |
| 45 | Simon Bellflower | 45 | Hired hand | Farm Laborer | South Carolina |
| 46 | James E. Hanna | 54 | Head | Farmer | South Carolina |
| 47 | Nina Hanna | 52 | Wife | — | South Carolina |
| 48 | Pauline Hanna | 20 | Daughter | Farm Laborer | South Carolina |
| 49 | James E. Jr. Hanna | 15 | Son | Farm Laborer | South Carolina |
| 50 | Fred G. Taylor | 62 | Head | Farmer | South Carolina |
| 51 | Lenora Taylor | 60 | Wife | — | South Carolina |
| 52 | John Cooper | 32 | Head | Farmer | South Carolina |
| 53 | Julie B. Cooper | 30 | Wife | Farm Laborer | South Carolina |
| 54 | Leroy W. Cooper | 11 | Son | Farm Laborer | South Carolina |
| 55 | John Jr. Cooper | 9 | Son | — | South Carolina |
| 56 | Eunice Cooper | 7 | Daughter | — | South Carolina |
| 57 | Patsy Cooper | 5 | Daughter | — | South Carolina |
| 58 | Leach Cooper | 2 | Son | — | South Carolina |
| 59 | Mamie Cooper | 1 | Daughter | — | South Carolina |
| 60 | Mose Wilson | 50 | Head | Farmer | South Carolina |
| 61 | Lilly Wilson | 50 | Wife | Farm Laborer | South Carolina |
| 62 | Hattie Wilson | 20 | Daughter | Farm Laborer | South Carolina |
| 63 | Florence Wilson | 15 | Daughter | — | South Carolina |
| 64 | Willa Mae Wilson | 13 | Daughter | — | South Carolina |
| 65 | Thomas Wilson | 11 | Son | — | South Carolina |
| 66 | Abe Wilson | 3 | Son | — | South Carolina |
| 67 | Marie Wilson | 1 | Daughter | — | South Carolina |
| 68 | Samuel Burgess | 55 | Hired hand | Farm Laborer | South Carolina |
| 69 | Wade G. Barr | 52 | Head | Farmer | South Carolina |
| 70 | Kate Barr | 45 | Wife | Farm Laborer | South Carolina |
| 71 | Cleo B. Barr | 25 | Daughter | Farm Laborer | South Carolina |
| 72 | Benjamin Barr | 20 | Son | Farm Laborer | South Carolina |
| 73 | John B. Barr THIS PERSON | 18 | Daughter | Farm Laborer | South Carolina |
| 74 | Mared Barr | 16 | Son | Farm Laborer | South Carolina |
| 75 | Eugene Barr | 15 | Son | Farm Laborer | South Carolina |
| 76 | Thomas Barr | 7 | Son | — | South Carolina |
| 77 | Pete Barr | 3 | Son | — | South Carolina |
| 78 | Murd Knight | 70 | Head | Farmer | South Carolina |
| 79 | Clara Knight | 53 | Wife | — | South Carolina |
| 80 | James Knight | 33 | Son | Farm Laborer | 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)