RB
Robert Blair — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lincoln-County, Louisiana
Our Model Tree links this Robert Blair across the 1930 and 1940 US Censuses in Lincoln-County, Louisiana (XGBoost, ~Confirmed) — first a head (b.~1899), then head of a 10-person household.
Age 41
b. ~1899
Male
Head
Born: Louisiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lincoln-County, Louisiana |
| Surname | Blair |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Louisiana |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Lincoln |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Louisiana |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Occupation | Farmer |
| Township / Ward | Police Jury Ward 8 |
| Est. Birth Year | ~1899 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Ellen Blair | Daughter | — | 16 | ~1924 |
| Carutha Blair | Daughter | — | 20 | ~1920 |
| Hattie Blair | Daughter | — | 1 | ~1939 |
| Lemariel Blair | Son | — | 8 | ~1932 |
| Lilian Blair | Spouse | — | 38 | ~1902 |
| Gap Blair | Son | — | 6 | ~1934 |
| Robert Blair | Head | — | 41 | ~1899 |
| Charleston Blair | Son | — | 4 | ~1936 |
| Dorthea Blair | Daughter | — | 13 | ~1927 |
| Luvader Blair | Daughter | — | 20 | ~1920 |
Census Appearances
1930
Lincoln, Louisiana
Head, age 31
Lincoln, Louisiana · implied b. ~1899 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blair |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Louisiana |
| Age at First Marriage | 17 |
| Father's Birthplace | Texas |
| Mother's Birthplace | Louisiana |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read/Write | No |
| Home Owned/Rented | R |
| Veteran | No |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
Lincoln-County, Louisiana
Head, age 41
Lincoln-County, Louisiana · implied b. ~1899 — 10 household members
| Surname | Blair |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Louisiana |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Lincoln |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Louisiana |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
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 Robert Blair across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Blair
Head · 1940 · age 41 · b. ~1899 · Louisiana
★ 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 — Lincoln-County, Louisiana
Open full size
1940 US Federal Census — Lincoln-County, Louisiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01411-00981)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | George Calloway | 14 | Brother-in-law | Farm Labor | Louisiana |
| 2 | Richard Scott | 27 | Head | Farm Labor | Mississippi |
| 3 | Madie Scott | 27 | Wife | — | Arkansas |
| 4 | David Simpsoy | Simpson | 37 | Head | Farm Labor | Louisiana |
| 5 | Lilian Simpsoy | Simpson | 35 | Wife | — | Louisiana |
| 6 | Willie Jr Simpsoy | Simpson | 10 | Son | — | Louisiana |
| 7 | Bettie Simpsoy | Simpson | 3 | Daughter | — | Louisiana |
| 8 | George Allen Simpsoy | Simpson | 1 | Son | — | Louisiana |
| 9 | Robert Blair THIS PERSON | 41 | Head | Farmer | Louisiana |
| 10 | Lilian Blair | 38 | Wife | — | Louisiana |
| 11 | Carutha Blair | 20 | Daughter | — | Louisiana |
| 12 | Ellen Blair | 16 | Daughter | Farm Labor | Louisiana |
| 13 | Dorthea Blair | 13 | Daughter | — | Louisiana |
| 14 | Luvader Blair | 20 | Daughter | — | Louisiana |
| 15 | Lemariel Blair | 8 | Son | — | Louisiana |
| 16 | Gap Robert Blair | 6 | Son | — | Louisiana |
| 17 | Charleston Blair | 4 | Son | — | Louisiana |
| 18 | Hattie Blair | 1 | Daughter | — | Louisiana |
| 19 | John H. Parish | 18 | Head | Farm Labor | Louisiana |
| 20 | Coriennie Parish | 16 | Wife | — | Louisiana |
| 21 | Johnnie Mcclain | 20 | Brother-in-law | Farm Labor | Louisiana |
| 22 | Nora Gibson | 33 | Head | Farm Labor | Louisiana |
| 23 | Amnenoy | Amnenon Gibson | 15 | Daughter | — | Louisiana |
| 24 | Irenia Gibson | 14 | Daughter | — | Louisiana |
| 25 | Melvin Gibson | 12 | Son | — | Louisiana |
| 26 | Roosevelt Gibson | 11 | Son | — | Louisiana |
| 27 | Ruby Gibson | 7 | Daughter | — | Louisiana |
| 28 | Ruth Gibson | 7 | Daughter | — | Louisiana |
| 29 | Junior Gibson | 5 | Son | — | Louisiana |
| 30 | Willie Gibson | 1 | Son | — | Louisiana |
| 31 | Grover Washington | 25 | Head | Farm Labor | Louisiana |
| 32 | Juanita Washington | 25 | Wife | — | Louisiana |
| 33 | Joe M. Johnson | 29 | Head | Farm Labor | Louisiana |
| 34 | Lodie Johnson | 21 | Wife | — | Louisiana |
| 35 | Jessie Lee Johnson | 33 | Daughter | — | Louisiana |
| 36 | Fredie Johnson | 5 | Daughter | — | Louisiana |
| 37 | Willie May Johnson | 11 | Daughter | — | Louisiana |
| 38 | Mildred Johnson | 9 | Daughter | — | Louisiana |
| 39 | Robert Joe Johnson | 5 | Son | — | Louisiana |
| 40 | T. B. Johnson | 25 | Head | Farm Labor | Louisiana |
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)