JB
John Barr — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Florence-County, South Carolina
Our Model Tree links this John Barr across the 1930 and 1940 US Censuses in Florence-County, South Carolina (XGBoost, ~Confirmed) — first a head (b.~1885), then head of a 8-person household.
Age 55
b. ~1885
Male
Head
Born: South Carolina
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Florence-County, South Carolina |
| Surname | Barr |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 55 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Johnson Township |
| 1935 Residence (County) | Florence |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Farmer |
| Township / Ward | Johnson Township |
| Est. Birth Year | ~1885 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Birlean Barr | Daughter | — | 7 | ~1933 |
| John Barr | Head | — | 55 | ~1885 |
| John Barr | Son | — | 6 | ~1934 |
| Liza Barr | Spouse | — | 42 | ~1898 |
| Oliver Barr | Son | — | 18 | ~1922 |
| Ethel Barr | Daughter | — | 15 | ~1925 |
| Anna Barr | Daughter | — | 9 | ~1931 |
| Pearl Barr | Daughter | — | 12 | ~1928 |
Census Appearances
1930
Florence, South …
Head, age 43
Florence, South Carolina · implied b. ~1887 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Barr |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | South Carolina |
| Age at First Marriage | 21 |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 1500 |
| Veteran | No |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Florence-County, South …
Head, age 55
Florence-County, South Carolina · implied b. ~1885 — 8 household members
| Surname | Barr |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 55 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Johnson Township |
| 1935 Residence (County) | Florence |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 0 |
| 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 Barr across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Barr
Head · 1940 · age 55 · b. ~1885 · South Carolina
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Florence-County, South Carolina
Open full size
1940 US Federal Census — Florence-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03809-00166)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Pauline Singletary | 19 | Daughter | Farm Helper | South Carolina |
| 2 | Samuel Rogers | 34 | Head | Farmer | South Carolina |
| 3 | Marie Rogers | 26 | Wife | Farm Helper | South Carolina |
| 4 | Samuel Jr. Rogers | 9 | Son | Farm Helper | South Carolina |
| 5 | Ella J. Rogers | 4 | Daughter | — | South Carolina |
| 6 | Joseph M. Jr. Hanna | 52 | Head | Farmer | South Carolina |
| 7 | Bertha V. Hanna | 49 | Wife | Farm Helper | South Carolina |
| 8 | Harry J. Hanna | 14 | Son | Farm Helper | South Carolina |
| 9 | Paul R. Hanna | 12 | Son | — | South Carolina |
| 10 | Emma V. Hanna | 6 | Daughter | — | South Carolina |
| 11 | Otto W. Hanna | 50 | Head | Farmer | South Carolina |
| 12 | Ira C. Hanna | 46 | Wife | Farm Helper | South Carolina |
| 13 | Foster Hanna | 16 | Son | Farm Helper | South Carolina |
| 14 | Zuel Hanna | 14 | Son | Farm Helper | South Carolina |
| 15 | Everlow Hanna | 8 | Daughter | — | South Carolina |
| 16 | Ollie W. Hanna | 19 | Son | Farm Helper | South Carolina |
| 17 | Myrtle I. Hanna | 18 | Daughter | Farm Helper | South Carolina |
| 18 | John J. Hanna | 50 | Head | Farmer | South Carolina |
| 19 | Helen E. Hanna | 46 | Wife | Farm Helper | South Carolina |
| 20 | Willie V. Hanna | 14 | Daughter | Farm Helper | South Carolina |
| 21 | Theodore Graham | 24 | Head | Farm Laborer | South Carolina |
| 22 | Esther Graham | 23 | Wife | Farm Laborer | South Carolina |
| 23 | Helen Graham | 7 | Daughter | — | South Carolina |
| 24 | Lloyd T. Graham | 1 | Son | — | South Carolina |
| 25 | Cooper, Ira M. Graham | 9 | Niece | — | South Carolina |
| 26 | Derrick J. Williams | 33 | Head | Farmer | South Carolina |
| 27 | Liza A. Williams | 27 | Wife | Farm Helper | South Carolina |
| 28 | Henry Williams | 9 | Son | — | South Carolina |
| 29 | Willa B. Williams | 6 | Daughter | — | South Carolina |
| 30 | Samuel H. Williams | 5 | Son | — | South Carolina |
| 31 | Frances Williams | 4 | Daughter | — | South Carolina |
| 32 | Derrick J. Jr. Williams | 2 | Son | — | South Carolina |
| 33 | John Barr THIS PERSON | 55 | Head | Farmer | South Carolina |
| 34 | Liza Barr | 42 | Wife | Farm Helper | South Carolina |
| 35 | Oliver Barr | 18 | Son | Farm Helper | South Carolina |
| 36 | Ethel Barr | 15 | Daughter | Farm Helper | South Carolina |
| 37 | Pearl Barr | 12 | Daughter | — | South Carolina |
| 38 | Anna M. Barr | 9 | Daughter | — | South Carolina |
| 39 | Birlean Barr | 7 | Daughter | — | South Carolina |
| 40 | John Jr. Barr | 6 | Son | — | 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)