RT
Robert Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Boyd-County, Kentucky
Our Model Tree links this Robert Thompson across the 1920, 1930 and 1940 US Censuses in Boyd-County, Kentucky (XGBoost, ~Confirmed), with identified parents Robert & Robert — first a son (b.~1917), then head of a 6-person household.
Age 23
b. ~1917
Male
Son
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Boyd-County, Kentucky |
| Surname | Thompson |
| Given Name | Robert Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Ashland |
| 1935 Residence (County) | Boyd |
| Additional Details | |
| Highest Grade | Hs 3 |
| 1935 Residence | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Mag Dist 4 |
| Est. Birth Year | ~1917 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Thompson | Head | — | 53 | ~1887 |
| Robert Thompson | Son | — | 23 | ~1917 |
| Fred Thompson | Son | — | 18 | ~1922 |
| Alfred Thompson | Son | — | 14 | ~1926 |
| Rupert Thompson | Son | — | 15 | ~1925 |
| Carrie Thompson | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Boyd, Kentucky
Son, age 4
Boyd, Kentucky · implied b. ~1916 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Robert Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Boyd, Kentucky
Son, age 13
Boyd, Kentucky · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Robert Jr |
| 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/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Boyd-County, Kentucky
Son, age 23
Boyd-County, Kentucky · implied b. ~1917 — 6 household members
| Surname | Thompson |
| Given Name | Robert Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Ashland |
| 1935 Residence (County) | Boyd |
| Highest Grade | Hs 3 |
| 1935 Residence | Kentucky |
| 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 Robert Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Robert Thompson (~0.92 confidence) and father Robert Thompson (~0.92 confidence) and mother Carrie Thompson (~0.92 confidence) and mother Carrie Thompson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Thompson
b. ~1889
Source father
● Household
· direct · ~0.92
Father
Robert Thompson
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Carrie Thompson
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Carrie Thompson
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Thompson
Son · 1940 · age 23 · b. ~1917 · Kentucky
★ You are viewing this record
Sibling
Rupert Thompson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Fred Thompson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alfred Thompson
Sibling · 1940 · age 14
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 — Boyd-County, Kentucky
Open full size
1940 US Federal Census — Boyd-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01283-00943)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lilla Heward | 56 | Wife | — | Kentucky |
| 2 | William Cooper | 86 | — | — | Kentucky |
| 3 | Robert Thompson | 53 | Head | Laborer | Kentucky |
| 4 | Carrie Thompson | 52 | Wife | — | Kentucky |
| 5 | Robert Jr Thompson THIS PERSON | 23 | Son | — | Kentucky |
| 6 | Fred Thompson | 18 | Son | — | Kentucky |
| 7 | Rupert Thompson | 15 | Son | — | Kentucky |
| 8 | Alfred Thompson | 14 | Son | — | Kentucky |
| 9 | Manuel W Sherman | 34 | Head | C Repairman | Indiana |
| 10 | Dixie G Sherman | 30 | Wife | — | Kentucky |
| 11 | George W Sherman | 13 | Son | — | Kentucky |
| 12 | Betty N Sherman | 11 | Daughter | — | Kentucky |
| 13 | James G Sherman | 8 | Son | — | Kentucky |
| 14 | Robert P Sherman | 6 | Son | — | Kentucky |
| 15 | Burt K Sherman | 5 | Son | — | Kentucky |
| 16 | Glendene Sherman | 3 | Daughter | — | Kentucky |
| 17 | Wilma J Sherman | 1 | Daughter | — | Kentucky |
| 18 | Janet Sherman | 0 | Daughter | — | Kentucky |
| 19 | Marjan Caldwell | 72 | Head | Farmer | Kentucky |
| 20 | Ethel Caldwell | 24 | Wife | — | Kentucky |
| 21 | Jack Arnett | 4 | Step-son | — | Kentucky |
| 22 | William E Mays | 23 | Head | Produce Manager | West Virginia |
| 23 | Clara E Mays | 22 | Wife | — | West Virginia |
| 24 | Joe A Mays | 2 | Son | — | West Virginia |
| 25 | James Rice | 40 | Head | Miner | Kentucky |
| 26 | Minnie Rice | 39 | Wife | — | Kentucky |
| 27 | Samuel Rice | 19 | Son | Miner | Kentucky |
| 28 | Anna Mae Rice | 17 | Daughter | Housework | Kentucky |
| 29 | James Rice | 15 | Son | — | Kentucky |
| 30 | Edna R Rice | 12 | Daughter | — | Kentucky |
| 31 | William Rice | 10 | Son | — | Kentucky |
| 32 | Matthew Rice | 10 | Son | — | Kentucky |
| 33 | Wirt Rice | 50 | Brother | Miner | Kentucky |
| 34 | Ray H Lyons | 34 | Head | Bread Salesman | Kentucky |
| 35 | Lula Lyons | 34 | Wife | — | West Virginia |
| 36 | Robert Lyons | 16 | Son | Bread Salesman | West Virginia |
| 37 | Thomas H Lyons | 15 | Son | — | West Virginia |
| 38 | John S Lyons | 10 | Son | — | West Virginia |
| 39 | Edwin B Lyons | 10 | Son | — | West Virginia |
| 40 | Mary L Lyons | 7 | Daughter | — | West Virginia |
Pedigree Summary
Robert + 3 siblings
Gen 1 · 4 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)