JH
John Hancock — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Kentucky
Our Model Tree links this John Hancock across the 1930 and 1940 US Censuses in Jefferson-County, Kentucky (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 10-person household.
Age 14
b. ~1926
Male
Son
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Kentucky |
| Surname | Hancock |
| Given Name | John B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Louisville City |
| Est. Birth Year | ~1926 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Jewell Hancock | Daughter | — | 7 | ~1933 |
| James Hancock | Son | — | 4 | ~1936 |
| Helena Hancock | Spouse | — | 42 | ~1898 |
| Rita Hancock | Daughter | — | 2 | ~1938 |
| Angela Hancock | Daughter | — | 9 | ~1931 |
| John Hancock | Son | — | 14 | ~1926 |
| John Hancock | Head | — | 44 | ~1896 |
| Ernestine Hancock | Daughter | — | 12 | ~1928 |
| Clyde Hancock | Son | — | 17 | ~1923 |
| Eleanora Hancock | Daughter | — | 20 | ~1920 |
Census Appearances
1930
Jefferson, Kentucky
Son, age 4
Jefferson, Kentucky · implied b. ~1926 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hancock |
| Given Name | John B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Jefferson-County, Kentucky
Son, age 14
Jefferson-County, Kentucky · implied b. ~1926 — 10 household members
| Surname | Hancock |
| Given Name | John B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 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 Hancock across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Hancock
Son · 1940 · age 14 · b. ~1926 · Kentucky
★ You are viewing this record
Sibling
James Hancock
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ernestine Hancock
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clyde Hancock
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Angela Hancock
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Hancock
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanora Hancock
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jewell Hancock
Sibling · 1940 · age 7
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 — Jefferson-County, Kentucky
Open full size
1940 US Federal Census — Jefferson-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01376-00418)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Cedric, Clyce J. Pedigo | 5 | Son | — | Kentucky |
| 2 | Charles Trout | 34 | Head | Meat Cutter | Kentucky |
| 3 | Mary Trout | 30 | Wife | — | Kentucky |
| 4 | Eugene Trout | 13 | Son | — | Kentucky |
| 5 | Kenneth Trout | 6 | Son | — | Kentucky |
| 6 | Dorothy Trout | 3 | Daughter | — | Kentucky |
| 7 | Alan Trout | 2 | Son | — | Kentucky |
| 8 | Amelia Utley | 69 | Head | — | Kentucky |
| 9 | Alvis Coleman | 41 | Head | Assembler | Kentucky |
| 10 | Emily Coleman | 42 | Wife | Button Hole Maker | Kentucky |
| 11 | Kenneth Coleman | 15 | Son | — | Kentucky |
| 12 | James F. Molley | 30 | Head | Glass Worker | Missouri |
| 13 | Winifred Molley | 30 | Wife | — | Kentucky |
| 14 | Kathleen Molley | 4 | Daughter | — | Ohio |
| 15 | Roger H. Molley | 3 | Son | — | Kentucky |
| 16 | Barbara J. Calvert | 53 | Head | — | Kentucky |
| 17 | Katherine Korte | 19 | Daughter | Switchboard Operator | Kentucky |
| 18 | Henry Black | 41 | Head | — | Austria |
| 19 | Sophie Black | 47 | Wife | Salad Maker | Austria |
| 20 | John W. Hancock | 44 | Head | Laborer | Kentucky |
| 21 | Helena A. Hancock | 42 | Wife | — | Kentucky |
| 22 | Eleanora Hancock | 20 | Daughter | Button Maker | Kentucky |
| 23 | Clyde Hancock | 17 | Son | Laborer | Kentucky |
| 24 | John B. Hancock THIS PERSON | 14 | Son | — | Kentucky |
| 25 | Ernestine Hancock | 12 | Daughter | — | Kentucky |
| 26 | Angela Hancock | 9 | Daughter | — | Kentucky |
| 27 | Jewell Hancock | 7 | Daughter | — | Kentucky |
| 28 | James Hancock | 4 | Son | — | Kentucky |
| 29 | Rita Hancock | 2 | Daughter | — | Kentucky |
| 30 | Fred C. Walker | 42 | Head | Mechanic | Kentucky |
| 31 | Kate Walker | 36 | Wife | — | Kentucky |
| 32 | Elza M. Souley | 41 | Lodger | — | Kentucky |
| 33 | Edgar Souley | 15 | Lodger | — | Kentucky |
| 34 | Elaine M. Souley | 12 | Lodger | — | Kentucky |
| 35 | Anna J. Souley | 10 | Lodger | — | Kentucky |
| 36 | Lillie B. Hildebrand | 59 | Head | Housekeeper | Kentucky |
| 37 | John Walker | 52 | Head | Butcher | Kentucky |
| 38 | Mary Walker | 51 | Wife | — | Kentucky |
| 39 | Robert J. Lochner | 56 | Head | Salesman | Kentucky |
| 40 | May B. Lochner | 58 | Wife | — | Kentucky |
Related Census Records
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)