LJ
Luther Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Floyd-County, Kentucky
Our Model Tree links this Luther Johnson across the 1920, 1930 and 1940 US Censuses in Floyd-County, Kentucky (XGBoost, ~Confirmed), with identified parents Thomas & Mary — first a head (b.~1907), then head of a 7-person household.
Age 33
b. ~1907
Male
Head
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Floyd-County, Kentucky |
| Surname | Johnson |
| Given Name | Luther |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Magisterial Dist No 3 |
| 1935 Residence (County) | Floyd |
| Additional Details | |
| Occupation | Laborer |
| Industry | Mines |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 2400 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Laborer |
| Township / Ward | Magisterial Dist No 3 |
| Est. Birth Year | ~1907 |
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 Luther | Age | Birth yr |
|---|---|---|---|---|
| John Johnson | Son | — | 6 | ~1934 |
| Bill Johnson | Son | — | 13 | ~1927 |
| Luther Johnson | Head | — | 33 | ~1907 |
| Annie Johnson | Son | — | 3 | ~1937 |
| Polly Johnson | Spouse | — | 32 | ~1908 |
| Georgia Johnson | Daughter | — | 2 | ~1938 |
| Bernice Johnson | Daughter | — | 11 | ~1929 |
Census Appearances
1920
Floyd, Kentucky
Son, age 13
Floyd, Kentucky · implied b. ~1907 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Luther |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Floyd, Kentucky
Head, age 24
Floyd, Kentucky · implied b. ~1906 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Luther |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 17 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Laborer |
| Industry | Coal Mines |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | $8 |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Floyd-County, Kentucky
Head, age 33
Floyd-County, Kentucky · implied b. ~1907 — 7 household members
| Surname | Johnson |
| Given Name | Luther |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Magisterial Dist No 3 |
| 1935 Residence (County) | Floyd |
| Occupation | Laborer |
| Industry | Mines |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 2400 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 Luther Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Johnson (~0.92 confidence) and mother Mary Johnson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Johnson
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Mary Johnson
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Luther Johnson
Head · 1940 · age 33 · b. ~1907 · Kentucky
★ 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 — Floyd-County, Kentucky
Open full size
1940 US Federal Census — Floyd-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01306-00270)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Delores Bates | 15 | Daughter | — | Kentucky |
| 42 | Magdline Bates | 5 | Daughter | — | Kentucky |
| 43 | Mary Bates | 62 | Mother | — | Kentucky |
| 44 | Gracie Hall | 18 | Wife | Maid | Kentucky |
| 45 | Leniar Bates | 5 | Son | — | Kentucky |
| 46 | Lewis Thornsbury | 25 | Head | Miner | Kentucky |
| 47 | Daisy Thornsbury | 24 | Wife | — | Kentucky |
| 48 | Jimmy Lee Thornsbury | 4 | Son | — | Kentucky |
| 49 | Anna Bee Thornsbury | 3 | Daughter | — | Kentucky |
| 50 | Jackie Lowell Thornsbury | 1 | Son | — | Kentucky |
| 51 | Jo Ann Thornsbury | 0 | Daughter | — | Kentucky |
| 52 | — | None | — | — | — |
| 53 | Lee Johnson | 34 | Head | Miner | Kentucky |
| 54 | Clara D. Johnson | 33 | Wife | — | Kentucky |
| 55 | Clyde Johnson | 14 | Son | 60 | Kentucky |
| 56 | Claude Johnson | 13 | Son | — | Kentucky |
| 57 | Charlie Fern Johnson | 7 | Daughter | — | Kentucky |
| 58 | Jackie Edward Johnson | 3 | Son | — | Kentucky |
| 59 | Peggy Jo Johnson | 2 | Daughter | — | Kentucky |
| 60 | Carl H. Turner | 28 | Head | Laborer | Kentucky |
| 61 | Alva D. Turner | 16 | Wife | — | Kentucky |
| 62 | Dave Childers | 25 | Head | Miner | Kentucky |
| 63 | Dessie Childers | 16 | Wife | — | Kentucky |
| 64 | Luther Johnson THIS PERSON | 33 | Head | Laborer | Kentucky |
| 65 | Polly Johnson | 32 | Wife | — | Kentucky |
| 66 | Bill Johnson | 13 | Son | — | Kentucky |
| 67 | Bernice Johnson | 11 | Daughter | — | Kentucky |
| 68 | John Wesley Johnson | 6 | Son | — | Kentucky |
| 69 | Annie Ray Johnson | 3 | Son | — | Kentucky |
| 70 | Georgia Johnson | 2 | Daughter | — | Kentucky |
| 71 | Robert Jr. Mitchell | 21 | Head | Laborer | Kentucky |
| 72 | Linda Mitchell | 46 | Mother | — | Kentucky |
| 73 | Ezra Mitchell | 17 | Brother | — | Kentucky |
| 74 | John Cook | 32 | Head | Miner | Kentucky |
| 75 | Olga D. Cook | 29 | Wife | — | Kentucky |
| 76 | Dorothy Cook | 13 | Daughter | — | Kentucky |
| 77 | Dorothy Lee Cook | 12 | Daughter | — | Kentucky |
| 78 | Phillip Cook | 9 | Son | — | Kentucky |
| 79 | T. J. Cook | 7 | Son | — | Kentucky |
| 80 | Conley Cook | 5 | Son | — | Kentucky |
Pedigree Summary
Luther
Gen 1 · 2 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)