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Robert Gregory — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Knox-County, Kentucky
Our Model Tree links this Robert Gregory across the 1930 and 1940 US Censuses in Knox-County, Kentucky (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 12-person household.
Age 17
b. ~1923
Male
Son
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Knox-County, Kentucky |
| Surname | Gregory |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Mounds Creek |
| 1935 Residence (County) | Knox |
| Additional Details | |
| Occupation | Labor |
| Industry | Farming |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 25 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Labor |
| Township / Ward | Mounds Creek |
| Est. Birth Year | ~1923 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Gregory | Son | — | 17 | ~1923 |
| Ermie Gregory | Daughter | — | 9 | ~1931 |
| Marie Gregory | Daughter | — | 12 | ~1928 |
| Fred Gregory | Son | — | 2 | ~1938 |
| Charlie Gregory | Son | — | 4 | ~1936 |
| Nellie Gregory | Spouse | — | 44 | ~1896 |
| Tom Gregory | Son | — | 18 | ~1922 |
| Rodger Gregory | Head | — | 40 | ~1900 |
| Herbert Gregory | Son | — | 21 | ~1919 |
| Nellie Gregory | Daughter | — | 13 | ~1927 |
| Vada Gregory | Daughter | — | 19 | ~1921 |
| Naomi Gregory | Daughter | — | 15 | ~1925 |
Census Appearances
1930
Knox, Kentucky
Son, age 8
Knox, Kentucky · implied b. ~1922 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gregory |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Knox-County, Kentucky
Son, age 17
Knox-County, Kentucky · implied b. ~1923 — 12 household members
| Surname | Gregory |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Mounds Creek |
| 1935 Residence (County) | Knox |
| Occupation | Labor |
| Industry | Farming |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 25 |
| Highest Grade | No 7 |
| 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 Gregory across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Gregory
Son · 1940 · age 17 · b. ~1923 · Kentucky
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Sibling
Herbert Gregory
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Naomi Gregory
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Gregory
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nellie Gregory
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vada Gregory
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ermie Gregory
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Fred Gregory
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charlie Gregory
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Tom Gregory
Sibling · 1940 · age 18
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 — Knox-County, Kentucky
Open full size
1940 US Federal Census — Knox-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01326-00868)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | W. M. Simpson | 39 | Head | Labor | Kentucky |
| 42 | Bertha Simpson | 29 | Wife | — | Kentucky |
| 43 | Juanita Simpson | 5 | Daughter | — | Kentucky |
| 44 | James Simpson | 2 | Son | — | Kentucky |
| 45 | Paul Dan Simpson | 0 | Son | — | Kentucky |
| 46 | J. D. Spurlock | 84 | Head | — | Kentucky |
| 47 | James Spurlock | 51 | Son | Labor | Kentucky |
| 48 | Will Hammons | 50 | Head | Labor | Kentucky |
| 49 | Ella Hammons | 44 | Wife | — | Kentucky |
| 50 | Homer Hammons | 20 | Son | Loading | Kentucky |
| 51 | Mary Lee Hammons | 18 | Daughter | — | Kentucky |
| 52 | Eveline Hammons | 15 | Daughter | — | Kentucky |
| 53 | Radford Hammons | 12 | Son | — | Kentucky |
| 54 | Isaac Hammons | 9 | Son | — | Kentucky |
| 55 | Burton Hammons | 7 | Son | — | Kentucky |
| 56 | Neil Hammons | 5 | Son | — | Kentucky |
| 57 | Tom Gregory | 44 | Head | Labor | Kentucky |
| 58 | Ealen Gregory | 30 | Wife | — | Kentucky |
| 59 | John Gregory | 45 | Brother | — | Kentucky |
| 60 | Robert Gregory | 11 | Nephew | — | Kentucky |
| 61 | Raymond Gregory | 5 | Nephew | — | Kentucky |
| 62 | Ashley Gregory | 4 | Niece | — | Kentucky |
| 63 | Rodger Gregory | 40 | Head | Loading | Kentucky |
| 64 | Nellie Gregory | 44 | Wife | — | Kentucky |
| 65 | Herbert Gregory | 21 | Son | Loading | Kentucky |
| 66 | Vada Gregory | 19 | Daughter | — | Kentucky |
| 67 | Tom Gregory | 18 | Son | Driving | Kentucky |
| 68 | Robert Gregory THIS PERSON | 17 | Son | Labor | Kentucky |
| 69 | Naomi Gregory | 15 | Daughter | — | Kentucky |
| 70 | Nellie Gregory | 13 | Daughter | — | Kentucky |
| 71 | Marie Gregory | 12 | Daughter | — | Kentucky |
| 72 | Ermie Lee Gregory | 9 | Daughter | — | Kentucky |
| 73 | Charlie Gregory | 4 | Son | — | Kentucky |
| 74 | Fred Gregory | 2 | Son | — | Kentucky |
| 75 | Flora Mills | 61 | Head | — | Kentucky |
| 76 | Oscar Mills | 24 | Son | Labor | Kentucky |
| 77 | Bernice Mills | 20 | Daughter-in-law | — | Kentucky |
| 78 | Paul Taylor | 15 | Lodger | Labor | Kentucky |
| 79 | Lucy Hensley | 43 | Head | Labor | Kentucky |
| 80 | Jim Matt Hensley | 22 | Son | Loading | Kentucky |
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)