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Robert Gregory — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Jefferson, Kentucky
Our Model Tree links this Robert Gregory across the 1920, 1930 and 1940 US Censuses in Jefferson, Kentucky (XGBoost, ~Confirmed) — first a head (b.~1879), then head of a 4-person household.
Age 51
b. ~1879
Male
Head
Born: Kentucky
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Jefferson, Kentucky |
| Surname | Gregory |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 20 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Indiana |
| Additional Details | |
| Occupation | Manufacturer |
| Industry | Concrete co |
| Class of Worker | E |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 6000 |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Manufacturer |
| Township / Ward | Louisville City |
| Est. Birth Year | ~1879 |
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 1930 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Gregory | Head | — | 51 | ~1879 |
| Theodore Gregory | Son | — | 18 | ~1912 |
| Marion Gregory | Son | — | 28 | ~1902 |
| Anna Gregory | Other | — | 51 | ~1879 |
Census Appearances
1920
Jefferson, Kentucky
Head, age 42
Jefferson, Kentucky · implied b. ~1878 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gregory |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Foreman |
| Industry | Belt Mfg Factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Jefferson, Kentucky
Head, age 51
Jefferson, Kentucky · implied b. ~1879 — 4 household members
| Surname | Gregory |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 20 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Indiana |
| Occupation | Manufacturer |
| Industry | Concrete co |
| Class of Worker | E |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 6000 |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Jefferson-County, Kentucky
Other, age 62
Jefferson-County, Kentucky · implied b. ~1878 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gregory |
| Given Name | Robert P. |
| Relationship to Head | father |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Occupation | concrete worker |
| Industry | block manufacture |
| Class of Worker | OA |
| Hours Worked | 28 |
| Income (1939) | 496 |
| Highest Grade | 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 Robert Gregory across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Robert Gregory
Head · 1930 · age 51 · b. ~1879 · Kentucky
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Jefferson, Kentucky
Open full size
1930 US Federal Census — Jefferson, Kentucky
Page Contents
50 people indexed on this census page (ia:1930:kentuckycensus00reel757:0869)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank Grumert | 53 | Head | None | Kentucky |
| 2 | Frances Grumert | 53 | wife-H | None | Switzerland |
| 3 | Carolyn Grumert | 23 | daughter | None | Kentucky |
| 4 | William Hafley | 35 | Head | Salesman | Alabama |
| 5 | Josephine Hafley | 36 | wife-H | Drop Forger | Kentucky |
| 6 | Oliver Hafley | 15 | son | None | Kentucky |
| 7 | Norman Hafley | 14 | son | None | Kentucky |
| 8 | Dolores Hafley | 9 | daughter | None | Kentucky |
| 9 | Doris Hafley | 6 | daughter | None | Kentucky |
| 10 | Bernard Hafley | 5 | son | None | Kentucky |
| 11 | William Hafley | 3 | son | None | Kentucky |
| 12 | Ray Hafley | 2 | son | None | Kentucky |
| 13 | Albert Hafley | 1 | son | None | Kentucky |
| 14 | Robert Gregory THIS PERSON | 51 | Head | Manufacturer | Kentucky |
| 15 | Anna Gregory | 51 | wife-H | None | Germany |
| 16 | Marion Gregory | 28 | son | Manager | Kentucky |
| 17 | Theodore Gregory | 18 | son | Salesman | Kentucky |
| 18 | Herman Sommerkamp | 38 | Head | Machinist | Michigan |
| 19 | Freda Sommerkamp | 38 | wife-H | None | Germany |
| 20 | Otilia Sommerkamp | 9 | daughter | None | Kentucky |
| 21 | Herman Jr Sommerkamp | 1 | son | None | Kentucky |
| 22 | Ida Gluckstern | 42 | sister-in-law | Cutter | Kentucky |
| 23 | Frank C. Rapp | 64 | Head | Machinist | Kentucky |
| 24 | Mayme Rapp | 43 | wife-H | None | Kentucky |
| 25 | Frank Jr Rapp | 14 | son | None | Kentucky |
| 26 | Margaret Rapp | 13 | daughter | None | Kentucky |
| 27 | Laverne Rapp | 11 | daughter | None | Kentucky |
| 28 | Robert Rapp | 9 | son | None | Kentucky |
| 29 | Ruth Rapp | 6 | daughter | None | Kentucky |
| 30 | Charles Meyer | 70 | father-in-law | Engineer | Germany |
| 31 | Theresa Meyer | 70 | mother-in-law | None | Germany |
| 32 | Emil Claus | 29 | Head | Travel Agent | Kentucky |
| 33 | Grace Claus | 24 | wife-H | None | Kentucky |
| 34 | Carl Claus | 3 | son | None | Kentucky |
| 35 | Ulrich Thamelina | 54 | Head | Brick Layer | Indiana |
| 36 | Rose Thamelina | 51 | wife-H | None | Indiana |
| 37 | Lillie Thamelina | 27 | daughter | None | Kentucky |
| 38 | Carl Thamelina | 26 | son | Brick Layer | Kentucky |
| 39 | Lillie Thamelina | 5 | granddaughter | None | Kentucky |
| 40 | Carl Jr Thamelina | 3 | grandson | None | Kentucky |
| 41 | John Rieker | 32 | Head | Tool Maker | Kentucky |
| 42 | Esther Rieker | 30 | wife-H | None | Kentucky |
| 43 | Raymond Rieker | 10 | son | None | Kentucky |
| 44 | John Jr Rieker | 8 | son | None | Kentucky |
| 45 | Laverne Rieker | 7 | daughter | None | Kentucky |
| 46 | Claude Rieker | 3 | son | None | Kentucky |
| 47 | Rudolph Pebramski | 51 | Head | Blacksmith | Austria |
| 48 | Adolph Pebramski | 27 | son | None | Austria |
| 49 | Agnes Cantlen | 55 | Head | Police Woman | Kentucky |
| 50 | Nell Miller | 19 | Boarder | Stenographer | Kentucky |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)