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Harry Hamilton — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Kentucky
Our Model Tree links this Harry Hamilton across the 1910, 1920, 1930 and 1940 US Censuses in Jefferson-County, Kentucky (XGBoost, ~Confirmed), with identified parents Bert & Lena — first a head (b.~1909), then head of a 3-person household.
Age 31
b. ~1909
Male
Head
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Kentucky |
| Surname | Hamilton |
| Given Name | Harry E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | JEFFERSON |
| Additional Details | |
| Occupation | Carpenter |
| Industry | Construction |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Carpenter |
| Township / Ward | Louisville City |
| Est. Birth Year | ~1909 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harry | Age | Birth yr |
|---|---|---|---|---|
| Ethel Hamilton | Spouse | — | 29 | ~1911 |
| Charles Hamilton | Son | — | ~1940 | |
| Harry Hamilton | Head | — | 31 | ~1909 |
Census Appearances
1910
Jefferson, Kentucky
Son, age 2
Jefferson, Kentucky · implied b. ~1908 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Harry E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Speaks English | English |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1920
Jefferson, Kentucky
Son, age 12
Jefferson, Kentucky · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Jefferson, Kentucky
Son, age 22
Jefferson, Kentucky · implied b. ~1908 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Harry E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Pattern Maker |
| Industry | Pattern Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Jefferson-County, Kentucky
Head, age 31
Jefferson-County, Kentucky · implied b. ~1909 — 3 household members
| Surname | Hamilton |
| Given Name | Harry E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | JEFFERSON |
| Occupation | Carpenter |
| Industry | Construction |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| 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 Harry Hamilton across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Bert Hamilton (~0.92 confidence) and mother Lena Hamilton (~0.92 confidence) and mother Lina Hamilton (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Bert Hamilton
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Lena Hamilton
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Lina Hamilton
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harry Hamilton
Head · 1940 · age 31 · b. ~1909 · Kentucky
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Jefferson-County, Kentucky
Open full size
1940 US Federal Census — Jefferson-County, Kentucky
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01376-00759)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Harry E. Hamilton THIS PERSON | 31 | Head | Carpenter | Kentucky |
| 42 | Ethel Hamilton | 29 | Wife | — | Kentucky |
| 43 | Charles E. Hamilton | 0 | Son | — | Kentucky |
| 44 | Beyer Hagaman | 37 | Head | Foreman | North Carolina |
| 45 | Ruth Hagaman | 36 | Wife | — | Tennessee |
| 46 | Clara Hagaman | 15 | Daughter | — | Tennessee |
| 47 | Coy Beyer Hagaman | 12 | Son | — | Tennessee |
| 48 | Jean Hagaman | 10 | Daughter | — | Tennessee |
| 49 | Mira Lou Hagaman | 8 | Daughter | — | Tennessee |
| 50 | Frederick Reitzel | 33 | Head | Assistant Foreman | Indiana |
| 51 | Rose Reitzel | 29 | Wife | — | Kentucky |
| 52 | Mary J. Reitzel | 11 | Daughter | — | Kentucky |
| 53 | Frederick Reitzel | 9 | Son | — | Kentucky |
| 54 | Rose M. Reitzel | 5 | Daughter | — | Kentucky |
| 55 | Geraldine Reitzel | 3 | Daughter | — | Kentucky |
| 56 | Herman Haneke | 65 | In-law | Baker | Kentucky |
| 57 | Herman Haneke | 34 | Brother In-law | Cap Cutter | Kentucky |
| 58 | C. Harris Mershon | 39 | Head | Salesman | Kentucky |
| 59 | Aline Mershon | 38 | Wife | Telephone Operator | Kentucky |
| 60 | Patricia Mershon | 12 | Daughter | — | Kentucky |
| 61 | Margaret Egner | 42 | Head | Teacher | Kentucky |
| 62 | Louise Egner | 57 | Sister | — | Kentucky |
| 63 | John J. Gensheimer | 48 | Head | Claim Investigator | Kentucky |
| 64 | Hazel Gensheimer | 48 | Wife | — | Kentucky |
| 65 | John Jr. Gensheimer | 16 | Son | — | Kentucky |
| 66 | Henry J. Gensheimer | 13 | Son | — | Kentucky |
| 68 | Adam T. Wiegend | 73 | Head | — | Germany |
| 69 | Lavinia Wiegend | 60 | Wife | — | Kentucky |
| 70 | Hazel Evans | 43 | Lodger | Office Clerk | Kentucky |
| 71 | Mabel Koch | 46 | Head | — | Kentucky |
| 72 | Harry Ulmer | 55 | Head | Manager | Pennsylvania |
| 73 | Bertha Ulmer | 55 | Wife | — | Pennsylvania |
| 74 | Clarence Zumer | 46 | Head | Yard Master | Kentucky |
| 75 | Elois Zumer | 37 | Wife | — | Tennessee |
| 76 | Maryanne Zumer | 5 | Daughter | — | Tennessee |
| 77 | Hulda Sulzer | 61 | Head | — | Kentucky |
| 78 | Leonard H. Blythe | 27 | Head | Delivery Man | Kentucky |
| 79 | Clara V. Blythe | 26 | Wife | Mail Order Clerk | Kentucky |
| 80 | Eva Cunningham | 33 | Sister In-law | Sales Lady | Kentucky |
Pedigree Summary
Harry
Gen 1 · 3 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)