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John Jackson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Kentucky
Our Model Tree links this John Jackson across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Kentucky (XGBoost, ~Confirmed), with identified parents Lewis & George — first a head (b.~1910), then head of a 4-person household.
Age 30
b. ~1910
Male
Head
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Kentucky |
| Surname | Jackson |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | Black |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | Elevator operator |
| Industry | Department Store |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 650 |
| Highest Grade | No 2 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Elevator Operator |
| Township / Ward | Louisville City |
| Est. Birth Year | ~1910 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Jackson | Head | — | 30 | ~1910 |
| Louis Jackson | Son | — | 6 | ~1934 |
| Edward Jackson | Son | — | 4 | ~1936 |
| Dorothy Jackson | Spouse | — | 25 | ~1915 |
Census Appearances
1920
Jefferson, Kentucky
Son, age 10
Jefferson, Kentucky · implied b. ~1910 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jackson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Jefferson, Kentucky
Son, age 21
Jefferson, Kentucky · implied b. ~1909 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jackson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Laundress |
| Industry | Private Home |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Jefferson-County, Kentucky
Head, age 30
Jefferson-County, Kentucky · implied b. ~1910 — 4 household members
| Surname | Jackson |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | Black |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Occupation | Elevator operator |
| Industry | Department Store |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 650 |
| Highest Grade | No 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 Jackson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Lewis Jackson (~0.92 confidence) and father George Jackson (~0.92 confidence) and mother Nannie Jackson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Lewis Jackson
b. ~1882
Source father
● Household
· direct · ~0.92
Father
George Jackson
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Nannie Jackson
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Jackson
Head · 1940 · age 30 · b. ~1910 · 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
40 people indexed on this census page (nara:1940:m-t0627-01374-00339)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | James Stafford | 48 | son | Paper Hanger | Kentucky |
| 42 | Fred Stafford | 36 | son | Paper Hanger | Kentucky |
| 43 | Raymond Stafford | 32 | son | Porter | Kentucky |
| 44 | Albert Collins | 40 | lodger | — | Kentucky |
| 45 | Antony Miles | 55 | lodger | — | Tennessee |
| 46 | Mattie B Hallock | 44 | head | — | Tennessee |
| 47 | Moss B Letcher | 52 | head | Laborer | Kentucky |
| 48 | John B Byrdson | 72 | head | — | Ohio |
| 49 | William Goldsmith | 35 | head | Hodcarrier | Kentucky |
| 50 | Mary Goldsmith | 32 | wife | Beauty Operator | Kentucky |
| 51 | William Goldsmith | 16 | son | — | Kentucky |
| 52 | George Goldsmith | 14 | son | — | Kentucky |
| 53 | Earl Goldsmith | 12 | son | — | Kentucky |
| 54 | Joseph Goldsmith | 11 | son | — | Kentucky |
| 55 | J. F Bettingfield | 25 | head | Street Cleaner | Alabama |
| 56 | Christine B Bettingfield | 18 | wife | — | Tennessee |
| 57 | Virginia B Baker | 39 | head | — | Kentucky |
| 58 | Columbus Baker | 17 | son | — | Kentucky |
| 59 | Virginia Baker | 15 | daughter | — | Kentucky |
| 60 | Mary B Talbert | 48 | head | Housework | Kentucky |
| 61 | David Parker | 57 | lodger | Sawer | Kentucky |
| 62 | Henry Walker | 46 | head | Waiter | Kentucky |
| 63 | Kattie B Walker | 37 | wife | — | Indiana |
| 64 | Henry Jr Walker | 3 | son | — | Kentucky |
| 65 | Betty Jean Walker | 2 | daughter | — | Kentucky |
| 66 | Castella Ray | 23 | sister-in-law | — | Indiana |
| 67 | Floyd A Ray | 0 | nephew | — | Kentucky |
| 68 | William Carter | 64 | head | Lumberman | Kentucky |
| 69 | Ora B Carter | 57 | wife | — | Kentucky |
| 70 | Ella M Carter | 26 | daughter | Laborer | Kentucky |
| 71 | Theodor Carter | 25 | son | — | Kentucky |
| 72 | Harry Carter | 18 | son | New Worker | Kentucky |
| 73 | Georgia B Guy | 70 | head | — | Kentucky |
| 74 | — | None | — | — | — |
| 75 | Carrie L B Walden | 56 | wife | — | Kentucky |
| 76 | Alice X Walden | 26 | daughter | Teacher | Indiana |
| 77 | John Jackson THIS PERSON | 30 | head | Elevator Operator | Kentucky |
| 78 | Dorothy Jackson | 25 | wife | — | Kentucky |
| 79 | Louis Jackson | 6 | son | — | Kentucky |
| 80 | Edward Jackson | 4 | son | — | Kentucky |
Pedigree Summary
John
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)