JB
John Blackburn — 1940 US Census Record
Model Tree available1940 United States Federal Census · Pike-County, Kentucky
Our Model Tree links this John Blackburn across the 1920, 1930 and 1940 US Censuses in Pike-County, Kentucky (XGBoost, ~Confirmed), with identified parents H & Rebecca — first a son (b.~1892), then head of a 4-person household.
Age 48
b. ~1892
Male
Son
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pike-County, Kentucky |
| Surname | Blackburn |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Magisterial Dist #1 |
| 1935 Residence (County) | Pike |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 26 |
| Income (1939) | 540 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Farmer |
| Township / Ward | Magisterial Dist 1 |
| Est. Birth Year | ~1892 |
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 |
|---|---|---|---|---|
| Rilla Blackburn | Head | — | 79 | ~1861 |
| John Blackburn | Son | — | 48 | ~1892 |
| Rudolph Blackburn | Son | — | 44 | ~1896 |
| W Blackburn | Son | — | 55 | ~1885 |
Census Appearances
1920
Pike, Kentucky
Son, age 27
Pike, Kentucky · implied b. ~1893 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blackburn |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Widowed |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Farmer |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Pike, Kentucky
Son, age 35
Pike, Kentucky · implied b. ~1895 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blackburn |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Laborer |
| Industry | Truck farm |
| Class of Worker | W |
| Can Read/Write | No |
| Veteran | No |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Pike-County, Kentucky
Son, age 48
Pike-County, Kentucky · implied b. ~1892 — 4 household members
| Surname | Blackburn |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Magisterial Dist #1 |
| 1935 Residence (County) | Pike |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 26 |
| Income (1939) | 540 |
| 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 Blackburn across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father H Blackburn (~0.92 confidence) and mother Rebecca Blackburn (~0.92 confidence) and mother Rebecca Blackburn (~0.92 confidence) and mother Rilla Blackburn (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
H Blackburn
b. ~1860
Source father
● Household
· direct · ~0.92
Mother
Rebecca Blackburn
b. ~1873
Source mother
● Household
· direct · ~0.92
Mother
Rebecca Blackburn
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Rilla Blackburn
b. ~1861
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Blackburn
Son · 1940 · age 48 · b. ~1892 · Kentucky
★ You are viewing this record
Sibling
Rudolph Blackburn
Sibling · 1940 · age 44
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
W Blackburn
Sibling · 1940 · age 55
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-t0627-01350-00312)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jessie Wilkinson | 7 | Son | — | Kentucky |
| 2 | Cleo Mullins | 26 | Daughter | — | Virginia |
| 3 | Rilla Blackburn | 79 | Head | — | Kentucky |
| 4 | W. G. Blackburn | 55 | Son | Farmer | Kentucky |
| 5 | John Blackburn THIS PERSON | 48 | Son | Farmer | Kentucky |
| 6 | Rudolph Blackburn | 44 | Son | Cook | Kentucky |
| 7 | W. H. Coleman | 36 | Head | Farmer | Kentucky |
| 8 | Zetta Coleman | 31 | Wife | — | Kentucky |
| 9 | Ray Coleman | 12 | Son | — | Kentucky |
| 10 | Clifford Coleman | 10 | Son | — | Kentucky |
| 11 | Hazel Coleman | 6 | Daughter | — | Kentucky |
| 12 | Edna Coleman | 3 | Daughter | — | Kentucky |
| 13 | Orville Meade | 18 | Servant | Laborer | Kentucky |
| 14 | G. C. Billiter | 45 | Head | Mechanic Helper | Kentucky |
| 15 | Rebecca Billiter | 38 | Wife | — | Kentucky |
| 16 | Hazel Billiter | 25 | Daughter | — | Kentucky |
| 17 | Stella Billiter | 23 | Daughter | — | Kentucky |
| 18 | Opal Billiter | 22 | Daughter | — | Kentucky |
| 19 | Hogan Billiter | 19 | Son | Farm Laborer | Kentucky |
| 20 | D. E. Kendrick | 36 | Head | Farm Laborer | Kentucky |
| 21 | Relvie Kendrick | 36 | Wife | — | Kentucky |
| 22 | Walter Kendrick | 15 | Son | — | Kentucky |
| 23 | Cleaphas Kendrick | 13 | Son | — | Kentucky |
| 24 | Johnnie Kendrick | 11 | Son | — | Kentucky |
| 25 | Ray Kendrick | 3 | Son | — | Kentucky |
| 26 | Lois Anne Kendrick | 1 | Daughter | — | Kentucky |
| 27 | Sarah Kendrick | 70 | Head | — | Kentucky |
| 28 | Sarah Kinder | 19 | Daughter | — | Kentucky |
| 29 | Anthony Kinder | 46 | Head | Farmer | Kentucky |
| 30 | Myrtle Kinder | 45 | Wife | — | Kentucky |
| 31 | Hubert Kinder | 21 | Son | — | Kentucky |
| 32 | Homer Kinder | 17 | Son | Farm Helper | Kentucky |
| 33 | Herman Kinder | 15 | Son | Farm Laborer | Kentucky |
| 34 | May Kinder | 15 | Daughter | — | Kentucky |
| 35 | Fred Kinder | 6 | Daughter | — | Kentucky |
| 36 | Geraldine Kinder | 3 | Daughter | — | Kentucky |
| 37 | Junie Kendrick | 31 | Head | Laborer | Kentucky |
| 38 | Zetta Kendrick | 20 | Wife | — | Kentucky |
| 39 | Eugene Kendrick | 3 | Son | — | Kentucky |
| 40 | Christine Kendrick | 2 | Daughter | — | Kentucky |
Pedigree Summary
John + 2 siblings
Gen 1 · 4 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)