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John Blackburn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Pike-County, Kentucky
Our Model Tree links this John Blackburn across the 1930 and 1940 US Censuses in Pike-County, Kentucky (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 9-person household.
Age 18
b. ~1922
Male
Son
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pike-County, Kentucky |
| Surname | Blackburn |
| Given Name | John Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Mag. Dist. 3 |
| 1935 Residence (County) | Pike |
| Additional Details | |
| Occupation | Farmer |
| Industry | Dadi Farm |
| Class of Worker | OA |
| Hours Worked | 20 |
| Income (1939) | 0 |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Farmer |
| Township / Ward | Mag Dist 3 |
| Est. Birth Year | ~1922 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Harvey Blackburn | Son | — | 5 | ~1935 |
| John Blackburn | Son | — | 18 | ~1922 |
| Maggie Blackburn | Daughter | — | 12 | ~1928 |
| Jimmie Blackburn | Other | — | 13 | ~1927 |
| John Blackburn | Head | — | 55 | ~1885 |
| Billie Blackburn | Son | — | 2 | ~1938 |
| Anora Blackburn | Spouse | — | 45 | ~1895 |
| Ray Blackburn | Son | — | 9 | ~1931 |
| James Blackburn | Son | — | 15 | ~1925 |
Census Appearances
1930
Pike, Kentucky
Son, age 7
Pike, Kentucky · implied b. ~1923 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blackburn |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read/Write | No |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Pike-County, Kentucky
Son, age 18
Pike-County, Kentucky · implied b. ~1922 — 9 household members
| Surname | Blackburn |
| Given Name | John Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Mag. Dist. 3 |
| 1935 Residence (County) | Pike |
| Occupation | Farmer |
| Industry | Dadi Farm |
| Class of Worker | OA |
| Hours Worked | 20 |
| Income (1939) | 0 |
| Highest Grade | No 3 |
| 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 Blackburn across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Blackburn
Son · 1940 · age 18 · b. ~1922 · Kentucky
★ You are viewing this record
Sibling
Harvey Blackburn
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Maggie Blackburn
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ray Blackburn
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Blackburn
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Billie Blackburn
Sibling · 1940 · age 2
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 — Pike-County, Kentucky
Open full size
1940 US Federal Census — Pike-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01350-00652)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Lou Stewart | 4 | Daughter | — | — |
| 2 | Fred Blair | 36 | Head | Farmer | Kentucky |
| 3 | Clara Blair | 26 | Wife | — | Kentucky |
| 4 | James Am Blair | 9 | Daughter | — | Kentucky |
| 5 | Charles Everett Blair | 7 | Son | — | Kentucky |
| 6 | Ronald Blake Blair | 4 | Son | — | Kentucky |
| 7 | Larry Ray Blair | 2 | Son | — | Kentucky |
| 8 | Feiral Adkins | 26 | Head | Farmer | Kentucky |
| 9 | Mollie Adkins | 16 | Wife | — | Kentucky |
| 10 | Mack Blair | 41 | Head | Farmer | West Virginia |
| 11 | James Blair | 11 | Son | — | Kentucky |
| 12 | Elizabeth Blair | 9 | Daughter | — | Kentucky |
| 13 | John Conway Melton | 29 | Head | Laborer | Kentucky |
| 14 | Nora Melton | 24 | Wife | — | Kentucky |
| 15 | Irma Joel Melton | 4 | Son | — | Kentucky |
| 16 | Linda Ruth Melton | 2 | Son | — | Kentucky |
| 17 | Harvey Lou Melton | 0 | Son | — | Kentucky |
| 18 | Dermore Melton | 57 | Head | Farmer | Tennessee |
| 19 | Virgie Lee Melton | 61 | Wife | — | Kentucky |
| 20 | Clarence Blackburn | 24 | Head | Miner | Kentucky |
| 21 | Mollie Blackburn | 18 | Wife | — | Kentucky |
| 22 | Roy Hamell | 33 | Head | Farmer | Kentucky |
| 23 | Mollie Hamell | 25 | Wife | — | Kentucky |
| 24 | Madelyn Hamell | 8 | Daughter | — | Kentucky |
| 25 | Joe Hamell | 5 | Son | — | Kentucky |
| 26 | John Blackburn | 55 | Head | Farmer | Kentucky |
| 27 | Anora Blackburn | 45 | Wife | — | Kentucky |
| 28 | John Jr Blackburn THIS PERSON | 18 | Son | Farmer | Kentucky |
| 29 | James Blackburn | 15 | Son | — | Kentucky |
| 30 | Maggie Blackburn | 12 | Daughter | — | Kentucky |
| 31 | Ray Blackburn | 9 | Son | — | Kentucky |
| 32 | Harvey Eli Blackburn | 5 | Son | — | Kentucky |
| 33 | Billie Chas Blackburn | 2 | Son | — | Kentucky |
| 34 | Jimmie Blackburn | 13 | Grandson | — | Kentucky |
| 35 | Elsworth Rome | 24 | Head | Miner | Kentucky |
| 36 | Pluma Rome | 26 | Wife | — | Kentucky |
| 37 | Mildred May Ratliff | 17 | Daughter | — | Kentucky |
| 38 | James Jones | 29 | Head | Miner | Kentucky |
| 39 | Lessie Jones | 27 | Wife | — | Kentucky |
| 40 | Eugene Jones | 4 | Son | — | Kentucky |
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)