JH
John Hahn — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Jefferson, Kentucky
Our Model Tree links this John Hahn across the 1930 and 1940 US Censuses in Jefferson, Kentucky (XGBoost, ~Confirmed) — first a son (b.~1914), then head of a 5-person household.
Age 16
b. ~1914
Male
Son
Born: Kentucky
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Jefferson, Kentucky |
| Surname | Hahn |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Germany |
| Mother's Birthplace | Kentucky |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Laborer |
| Township / Ward | 1St Magisterial |
| Est. Birth Year | ~1914 |
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 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Hahn | Spouse | — | 48 | ~1882 |
| William Hahn | Son | — | 22 | ~1908 |
| George Hahn | Head | — | 50 | ~1880 |
| John Hahn | Son | — | 16 | ~1914 |
| Clarence Hahn | Son | — | 19 | ~1911 |
Census Appearances
1930
Jefferson, Kentucky
Son, age 16
Jefferson, Kentucky · implied b. ~1914 — 5 household members
| Surname | Hahn |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Germany |
| Mother's Birthplace | Kentucky |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Jefferson-County, Kentucky
Head, age 27
Jefferson-County, Kentucky · implied b. ~1913 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hans |
| Given Name | John M. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Occupation | Tinner |
| Industry | Contracting Home Building |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 1121 |
| Highest Grade | Hs 2 |
| 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 John Hahn across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Hahn
Son · 1930 · age 16 · b. ~1914 · Kentucky
★ You are viewing this record
Sibling
Clarence Hahn
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Hahn
Sibling · 1930 · age 22
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
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:kentuckycensus00reel752:0100)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Adam Lilley | 50 | Head | Farmer | Kentucky |
| 52 | Anna Lilley | 48 | Wife | — | Kentucky |
| 53 | Gladys Lilley | 18 | Daughter | — | Kentucky |
| 54 | George Hahn | 50 | Head | Laborer | Germany |
| 55 | Mary Hahn | 48 | Wife | — | Kentucky |
| 56 | William Hahn | 22 | Son | Laborer | Kentucky |
| 57 | Clarence Hahn | 19 | Son | Laborer | Kentucky |
| 58 | John Hahn THIS PERSON | 16 | Son | Laborer | Kentucky |
| 59 | Jack Gilleman | 35 | Head | Laborer | Kentucky |
| 60 | Edna Gilleman | 30 | Wife | — | Kentucky |
| 61 | Jack Jr. Gilleman | 4 | Son | — | Kentucky |
| 62 | William Brown | 45 | Head | — | Kentucky |
| 63 | Lilly Brown | 40 | Wife | — | Kentucky |
| 64 | Evelyn Brown | 18 | Daughter | — | Kentucky |
| 65 | Catherine Brown | 16 | Daughter | — | Kentucky |
| 66 | James Brown | 14 | Son | — | Kentucky |
| 67 | William Brown | 12 | Son | — | Kentucky |
| 68 | Wm R Young | 45 | Head | Farmer | Kentucky |
| 69 | Mattie Young | 40 | Wife | — | Kentucky |
| 70 | Lillian Young | 18 | Daughter | — | Kentucky |
| 71 | Charles Young | 16 | Son | — | Kentucky |
| 72 | Taylor Young | 14 | Son | — | Kentucky |
| 73 | William Waters | 70 | Head | Retired | Kentucky |
| 74 | Anna Waters | 65 | Wife | — | Kentucky |
| 75 | James Waters | 35 | Son | Laborer | Kentucky |
| 76 | George Waters | 30 | Son | Laborer | Kentucky |
| 77 | John Hale | 65 | Head | Retired | Kentucky |
| 78 | Nora Hale | 60 | Wife | — | Kentucky |
| 79 | Horace Hale | 35 | Son | Laborer | Kentucky |
| 80 | Mary Hale | 30 | Daughter | — | Kentucky |
| 81 | Roy Hale | 25 | Son | Laborer | Kentucky |
| 82 | Ed Hale | 35 | Head | Laborer | Kentucky |
| 83 | Rachael Hale | 30 | Wife | — | Kentucky |
| 84 | Will Bates | 45 | Head | Laborer | Kentucky |
| 85 | Emma Bates | 40 | Wife | — | Kentucky |
| 86 | Andy Bates | 35 | Head | Laborer | Kentucky |
| 87 | Alice Bates | 30 | Wife | — | Kentucky |
| 88 | Earl Bates | 10 | Son | — | Kentucky |
| 89 | Myrtle Bates | 8 | Daughter | — | Kentucky |
| 90 | Ernest Irmscher | 45 | Head | Farmer | Kentucky |
| 91 | Mary Irmscher | 40 | Wife | — | Kentucky |
| 92 | Lawrence Clayton | 35 | Head | Laborer | Kentucky |
| 93 | Gertie Clayton | 30 | Wife | — | Kentucky |
| 94 | Lawrence Clayton | 10 | Son | — | Kentucky |
| 95 | Virginia Clayton | 8 | Daughter | — | Kentucky |
| 96 | Ed Young | 45 | Head | Farmer | Kentucky |
| 97 | Lilly Young | 40 | Wife | — | Kentucky |
| 98 | Ruth Young | 18 | Daughter | — | Kentucky |
| 99 | James Young | 16 | Son | — | Kentucky |
| 100 | Anna Young | 14 | Daughter | — | 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)