WB
William Blair — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Kentucky
Our Model Tree links this William Blair across the 1920, 1930 and 1940 US Censuses in Marion-County, Kentucky (XGBoost, ~Confirmed), with identified parents William & Mary — first a head (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Male
Head
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Kentucky |
| Surname | Blair |
| Given Name | William Hardy |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Labor |
| Industry | W.P.A. |
| Class of Worker | GW |
| Hours Worked | 30 |
| Income (1939) | 217 |
| Highest Grade | 7 |
| 1935 Residence | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Labor |
| Township / Ward | Magisterial District 4 Loretto |
| Est. Birth Year | ~1913 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Carrie Blair | Daughter | — | 2 | ~1938 |
| William Blair | Head | — | 27 | ~1913 |
| William Blair | Son | — | 2 | ~1938 |
| Liza Blair | Spouse | — | 26 | ~1914 |
Census Appearances
1920
Marion, Kentucky
Son, age 7
Marion, Kentucky · implied b. ~1913 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blair |
| Given Name | William H |
| 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 | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Marion, Kentucky
Son, age 17
Marion, Kentucky · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blair |
| Given Name | William H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Marion-County, Kentucky
Head, age 27
Marion-County, Kentucky · implied b. ~1913 — 4 household members
| Surname | Blair |
| Given Name | William Hardy |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Marion |
| Occupation | Labor |
| Industry | W.P.A. |
| Class of Worker | GW |
| Hours Worked | 30 |
| Income (1939) | 217 |
| Highest Grade | 7 |
| 1935 Residence | Kentucky |
| 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 William Blair across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Blair (~0.92 confidence) and mother Mary Blair (~0.92 confidence) and mother Lula Blair (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Blair
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Mary Blair
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Lula Blair
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Blair
Head · 1940 · age 27 · b. ~1913 · 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 — Marion-County, Kentucky
Open full size
1940 US Federal Census — Marion-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01338-00370)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anthony Edelen | 15 | Son | — | Kentucky |
| 2 | Iva Edelen | 9 | Son | — | Kentucky |
| 3 | Mary Rita Edelen | 8 | Daughter | — | Kentucky |
| 4 | Donald Edelen | 6 | Son | — | Kentucky |
| 5 | Ruth Marie Edelen | 3 | Daughter | — | Kentucky |
| 6 | Marie Edelen | 46 | Head | — | Kentucky |
| 7 | Clarence W. Ewing | 44 | Head | Operator | Kentucky |
| 8 | Lucy Ewing | 42 | Wife | — | Kentucky |
| 9 | John Ervin Ewing | 18 | Son | Laborer | Kentucky |
| 10 | Willie Ewing | 16 | Son | — | Kentucky |
| 11 | Francis Gerald Ewing | 12 | Son | — | Ohio |
| 12 | Dorothy Ewing | 9 | Daughter | — | Kentucky |
| 13 | Glenn Ewing | 7 | Son | — | Kentucky |
| 14 | Carol Ewing | 6 | Daughter | — | Kentucky |
| 15 | Melvin Ewing | 3 | Son | — | Kentucky |
| 16 | Bessie Rose Ewing | 1 | Daughter | — | Kentucky |
| 17 | Clarence Jr. Ewing | 22 | Head | Laborer | Kentucky |
| 18 | Lucille Ewing | 21 | Wife | — | Kentucky |
| 19 | Martin Ewing | 12 | Son | — | Kentucky |
| 20 | E. M. Vessells | 62 | Head | Farmer | Kentucky |
| 21 | Josie Vessells | 66 | Sister | — | Kentucky |
| 22 | Lizzie Vessells | 64 | Sister | — | Kentucky |
| 23 | William Hardy Blair THIS PERSON | 27 | Head | Labor | Kentucky |
| 24 | Liza Lou Blair | 26 | Wife | — | Kentucky |
| 25 | William Milton Blair | 2 | Son | — | Kentucky |
| 26 | Carrie Etta Blair | 2 | Daughter | — | Kentucky |
| 27 | J. William Sullivan | 39 | Head | Farmer | Kentucky |
| 28 | Allie Sullivan | 41 | Wife | — | Kentucky |
| 29 | Lelantan Sullivan | 12 | Son | — | Kentucky |
| 30 | Lee Beard | 54 | Head | Farmer | Kentucky |
| 31 | Lissie Beard | 48 | Wife | — | Kentucky |
| 32 | Cales Beard | 17 | Son | Operator | Kentucky |
| 33 | Mary Beard | 13 | Daughter | — | Kentucky |
| 34 | Anna Mae Arvin | 23 | Daughter | — | Kentucky |
| 35 | Lester Beard | 22 | Head | Operator | Kentucky |
| 36 | Dorothy W. Beard | 22 | Wife | — | Kentucky |
| 37 | Alvin Beard | 9 | Son | — | Kentucky |
| 38 | Willard Lee Beard | 7 | Son | — | Kentucky |
| 39 | Mary Beard | 5 | Daughter | — | Kentucky |
| 40 | Thomas Underwood | 21 | Head | Laborer | Kentucky |
Pedigree Summary
William
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)