RS
Robert Simpson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Kentucky
Our Model Tree links this Robert Simpson across the 1920, 1930 and 1940 US Censuses in Marion-County, Kentucky (XGBoost, ~Confirmed), with identified parents James & Jim — first a son (b.~1912), then head of a 5-person household.
Age 28
b. ~1912
Male
Son
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Kentucky |
| Surname | Simpson |
| Given Name | Robert C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Lebanon |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Hacker |
| Industry | Pool Room |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 126 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Hacker |
| Township / Ward | Lebanon |
| Est. Birth Year | ~1912 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| James Simpson | Head | — | 56 | ~1884 |
| John Simpson | Son | — | 19 | ~1921 |
| Robert Simpson | Son | — | 28 | ~1912 |
| Cecil Simpson | Son | — | 15 | ~1925 |
| Martha Simpson | Spouse | — | 60 | ~1880 |
Census Appearances
1920
Marion, Kentucky
Son, age 7
Marion, Kentucky · implied b. ~1913 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simpson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Marion, Kentucky
Son, age 18
Marion, Kentucky · implied b. ~1912 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simpson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Laborer |
| Industry | Farming |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Marion-County, Kentucky
Son, age 28
Marion-County, Kentucky · implied b. ~1912 — 5 household members
| Surname | Simpson |
| Given Name | Robert C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Lebanon |
| 1935 Residence (County) | Marion |
| Occupation | Hacker |
| Industry | Pool Room |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 126 |
| Highest Grade | No 4 |
| 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 Robert Simpson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Simpson (~0.92 confidence) and father Jim Simpson (~0.92 confidence) and mother Becky Simpson (~0.92 confidence) and mother Bethana Simpson (~0.92 confidence) and mother Martha Simpson (~0.92 confidence) and father James Simpson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Simpson
b. ~1865
Source father
● Household
· direct · ~0.92
Father
Jim Simpson
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Becky Simpson
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Bethana Simpson
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Martha Simpson
b. ~1880
Source mother
● Household
· direct · ~0.92
Father
James Simpson
b. ~1884
Source father
● Household
· direct · ~0.92
This person
Anchor record
Robert Simpson
Son · 1940 · age 28 · b. ~1912 · Kentucky
★ You are viewing this record
Sibling
Cecil Simpson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Simpson
Sibling · 1940 · age 19
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 — Marion-County, Kentucky
Open full size
1940 US Federal Census — Marion-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01338-00125)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joseph R. Ramsey | 15 | Son | — | Kentucky |
| 42 | Vivian Barlow | 35 | Head | Tractor Oiler | Kentucky |
| 43 | Mary O. Barlow | 27 | Wife | — | Kentucky |
| 44 | Omar Barlow | 6 | Son | — | Kentucky |
| 45 | George Barlow | 5 | Son | — | Kentucky |
| 46 | David Barlow | 2 | Son | — | Kentucky |
| 47 | Lucille Barlow | 0 | Daughter | — | Kentucky |
| 48 | Alice Barlow | 70 | Mother | — | Kentucky |
| 49 | James O. Simpson | 56 | Head | Farmer | Kentucky |
| 50 | Martha M. Simpson | 60 | Wife | — | Kentucky |
| 51 | Robert C. Simpson THIS PERSON | 28 | Son | Hacker | Kentucky |
| 52 | John Wesley Simpson | 19 | Son | Laborer | Kentucky |
| 53 | Cecil A. Simpson | 15 | Son | Helper | Kentucky |
| 54 | Thomas Sharpe | 49 | Head | Sawyer | Kentucky |
| 55 | Mary O. Sharpe | 25 | Wife | — | Kentucky |
| 56 | Nancy E. Sharpe | 10 | Daughter | — | Kentucky |
| 57 | Charles E. Sharpe | 9 | Son | — | Kentucky |
| 58 | Thomas Jr. Sharpe | 7 | Son | — | Kentucky |
| 59 | Robert E. Sharpe | 6 | Son | — | Kentucky |
| 60 | Merlin L. Sharpe | 4 | Daughter | — | Kentucky |
| 61 | Virginia D. Sharpe | 2 | Daughter | — | Kentucky |
| 62 | Luther Allen | 49 | Head | Painter | Kentucky |
| 63 | Sallie Allen | 44 | Wife | — | Kentucky |
| 64 | Addie Lee Allen | 22 | Daughter | — | Kentucky |
| 65 | Nancy L. Allen | 9 | Daughter | — | Kentucky |
| 66 | James R. Allen | 7 | Son | — | Kentucky |
| 67 | John Allen | 25 | Head | Laborer | Kentucky |
| 68 | Kate O. Allen | 23 | Wife | — | Kentucky |
| 69 | Shirley Ann Allen | 3 | Daughter | — | Kentucky |
| 70 | Mary Jean Allen | 2 | Daughter | — | Kentucky |
| 71 | Sallie E. Allen | 0 | Daughter | — | Kentucky |
| 72 | Delmar Tribbins | 28 | Head | Laborer | Kentucky |
| 73 | Lattie Tribbins | 29 | Wife | — | Kentucky |
| 74 | Eleanor Tribbins | 10 | Daughter | — | Kentucky |
| 75 | Geneva Tribbins | 8 | Daughter | — | Kentucky |
| 76 | Joyce Tribbins | 6 | Daughter | — | Kentucky |
| 77 | Patsy M. Tribbins | 0 | Daughter | — | Kentucky |
| 78 | Pearl Steele | 34 | Head | Laundress | Kentucky |
| 79 | Oscar L. Steele | 16 | Son | Np | Kentucky |
| 80 | Joseph H. Steele | 13 | Son | — | Kentucky |
Pedigree Summary
Robert + 2 siblings
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)