JT
John Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Crittenden-County, Kentucky
Our Model Tree links this John Thomas across the 1910, 1920, 1930 and 1940 US Censuses in Crittenden-County, Kentucky (XGBoost, ~Confirmed), with identified parents Joe & John — first a head (b.~1904), then head of a 4-person household.
Age 36
b. ~1904
Male
Head
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Crittenden-County, Kentucky |
| Surname | Thomas |
| Given Name | John E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | M.C. No 6 |
| 1935 Residence (County) | Crittenden |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Farmer |
| Township / Ward | Mc No 6 |
| Est. Birth Year | ~1904 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Thomas | Head | — | 36 | ~1904 |
| John Thomas | Son | — | 8 | ~1932 |
| Donald Thomas | Son | — | 5 | ~1935 |
| Iris Thomas | Spouse | — | 31 | ~1909 |
Census Appearances
1910
Crittenden, Kentucky
Son, age 6
Crittenden, Kentucky · implied b. ~1904 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1920
Crittenden, Kentucky
Son, age 16
Crittenden, Kentucky · implied b. ~1904 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| 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
Crittenden, Kentucky
Son, age 26
Crittenden, Kentucky · implied b. ~1904 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | John S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Crittenden-County, Kentucky
Head, age 36
Crittenden-County, Kentucky · implied b. ~1904 — 4 household members
| Surname | Thomas |
| Given Name | John E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | M.C. No 6 |
| 1935 Residence (County) | Crittenden |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| 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 John Thomas across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Joe Thomas (~0.92 confidence) and father John Thomas (~0.92 confidence) and father Jackson Thomas (~0.92 confidence) and mother Frances Thomas (~0.92 confidence) and mother Sue Thomas (~0.92 confidence) and mother Agnes Thomas (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Joe Thomas
b. ~1866
Source father
● Household
· direct · ~0.92
Father
John Thomas
b. ~1866
Source father
● Household
· direct · ~0.92
Father
Jackson Thomas
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Frances Thomas
b. ~1868
Source mother
● Household
· direct · ~0.92
Mother
Sue Thomas
b. ~1868
Source mother
● Household
· direct · ~0.92
Mother
Agnes Thomas
b. ~1867
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Thomas
Head · 1940 · age 36 · b. ~1904 · 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 — Crittenden-County, Kentucky
Open full size
1940 US Federal Census — Crittenden-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01297-00287)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Elfred Darnell | 45 | Son | Farm Laborer | Kentucky |
| 42 | Sidney Watson | 38 | Head | Farmer | Kentucky |
| 43 | Lydia Watson | 31 | Wife | — | Kentucky |
| 44 | Ruth Watson | 8 | Daughter | — | Kentucky |
| 45 | Ruby Watson | 8 | Daughter | — | Kentucky |
| 46 | Vernon Watson | 7 | Son | — | Kentucky |
| 47 | William G. Watson | 6 | Son | — | Kentucky |
| 48 | Mary Belle Watson | 4 | Daughter | — | Kentucky |
| 49 | Lauline Watson | 1 | Daughter | — | Kentucky |
| 50 | Guy Rogers | 28 | Son | Farm Laborer | Kentucky |
| 51 | Lydia Belt | 41 | Head | Farmer | Illinois |
| 52 | James A. Belt | 19 | Son | Farm Laborer | Kentucky |
| 53 | Paul Belt | 12 | Son | — | Kentucky |
| 54 | Una Belt | 9 | Daughter | — | Kentucky |
| 55 | Ula Belt | 9 | Daughter | — | Kentucky |
| 56 | Marion T. Thomas | 24 | Head | Farm Laborer | Kentucky |
| 57 | Wilma Thomas | 19 | Wife | — | Kentucky |
| 58 | Betty Lou Thomas | 2 | Daughter | — | Kentucky |
| 59 | John E. Thomas THIS PERSON | 36 | Head | Farmer | Kentucky |
| 60 | Iris Thomas | 31 | Wife | — | Kentucky |
| 61 | John Ed Thomas | 8 | Son | — | Kentucky |
| 62 | Donald D. Thomas | 5 | Son | — | Kentucky |
| 63 | Jack A. Thomas | 74 | Head | Farmer | Kentucky |
| 64 | Nancy Sue Thomas | 73 | Wife | — | Kentucky |
| 65 | Willie Moore | 51 | Daughter | — | Kentucky |
| 66 | Robert C. Moore | 26 | Grandson | Teacher | Kentucky |
| 67 | George R. Herrin | 46 | Head | Farmer | Kentucky |
| 68 | Minnie Herrin | 42 | Wife | — | Kentucky |
| 69 | Beverly Herrin | 12 | Son | — | Kentucky |
| 70 | Carrol R. Herrin | 9 | Son | — | Kentucky |
| 71 | Jesse Alvis | 61 | Head | Farmer | Kentucky |
| 72 | Nannie Alvis | 60 | Wife | — | Kentucky |
| 73 | Jesse Wayne Alvis | 18 | Son | — | Kentucky |
| 74 | Victoria Campbell | 79 | Mother in law | — | Tennessee |
| 75 | Lucy Barger | 62 | Head | — | Tennessee |
| 76 | Lois Johnson | 37 | Daughter | Teacher | Kentucky |
| 77 | Jo Anne Johnson | 8 | Granddaughter | — | Kentucky |
| 78 | Elbert Lucas | 49 | Head | Farmer | Kentucky |
| 79 | Sallie Lucas | 57 | Wife | — | Kentucky |
| 80 | Luther Camel | 76 | Lodger | Farm Laborer | Illinois |
Pedigree Summary
John
Gen 1 · 6 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)