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Mary Blair — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Johnson, Kentucky
Our Model Tree links this Mary Blair across the 1930 and 1940 US Censuses in Johnson, Kentucky (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 9-person household.
Age 3
b. ~1927
Female
Daughter
Born: Kentucky
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Johnson, Kentucky |
| Surname | Blair |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Additional Details | |
| Occupation | none |
| Can Read/Write | No |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Magisterial Dist 7 |
| Est. Birth Year | ~1927 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Blair | Daughter | — | 3 | ~1927 |
| Addie Blair | Daughter | — | 8 | ~1922 |
| Verdie Blair | Daughter | — | ~1930 | |
| Lolah Blair | Daughter | — | 11 | ~1919 |
| Mildred Blair | Daughter | — | 14 | ~1916 |
| Gideon Blair | Head | — | 48 | ~1882 |
| Edward Blair | Son | — | 5 | ~1925 |
| Alonzo Blair | Son | — | 17 | ~1913 |
| Lydia Blair | Spouse | — | 38 | ~1892 |
Census Appearances
1930
Johnson, Kentucky
Daughter, age 3
Johnson, Kentucky · implied b. ~1927 — 9 household members
| Surname | Blair |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | none |
| Can Read/Write | No |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Johnson-County, Kentucky
Daughter, age 13
Johnson-County, Kentucky · implied b. ~1927 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blair |
| Given Name | Merry |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Magisterial District No 3 |
| 1935 Residence (County) | Johnson |
| Highest Grade | No 6 |
| 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 Mary Blair across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Blair
Daughter · 1930 · age 3 · b. ~1927 · Kentucky
★ You are viewing this record
Sibling
Mildred Blair
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Verdie Blair
Sibling · 1930 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alonzo Blair
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Blair
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lolah Blair
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Addie Blair
Sibling · 1930 · age 8
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
1930 US Federal Census — Johnson, Kentucky
Open full size
1930 US Federal Census — Johnson, Kentucky
Page Contents
50 people indexed on this census page (ia:1930:kentuckycensus00reel761:0273)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Sylvia Fairchild | 2 | Daughter | None | Kentucky |
| 2 | Paris H. Fairchild | 35 | Head | Farmer | Kentucky |
| 3 | Nora Fairchild | 31 | Wife | None | Kentucky |
| 4 | Lurina Fairchild | 14 | Daughter | None | Kentucky |
| 5 | Myrene Fairchild | 12 | Daughter | None | Kentucky |
| 6 | Jackson Blair | 28 | Head | Farmer | Kentucky |
| 7 | Kay Blair | 20 | Wife | None | Kentucky |
| 8 | Albert G. Blair | 1 | Son | None | Kentucky |
| 9 | W. B. Caudill | 67 | Head | Farmer | Kentucky |
| 10 | Ella Caudill | 58 | Wife | None | Kentucky |
| 11 | Rivers | 73 | Head | Farmer | Kentucky |
| 12 | S. R. Arms | 61 | Son-in-law | Farmer | Kentucky |
| 13 | Minnie Arms | 62 | Daughter | None | Kentucky |
| 14 | Bessie Arms | 18 | Granddaughter | Laborer | Kentucky |
| 15 | Goldie Arms | 15 | Granddaughter | Laborer | Kentucky |
| 16 | Raymond Arms | 20 | Grandson | None | Kentucky |
| 17 | Ray Arms | 9 | Grandson | None | Kentucky |
| 18 | Gideon Blair | 48 | Head | Farmer | Kentucky |
| 19 | Lydia Blair | 38 | Wife | None | Kentucky |
| 20 | Alonzo Blair | 17 | Son | Laborer | Kentucky |
| 21 | Mildred Blair | 14 | Daughter | None | Kentucky |
| 22 | Lolah Blair | 11 | Daughter | None | Kentucky |
| 23 | Addie M. Blair | 8 | Daughter | None | Kentucky |
| 24 | Edward D. Blair | 5 | Son | None | Kentucky |
| 25 | Mary E. Blair THIS PERSON | 3 | Daughter | None | Kentucky |
| 26 | Verdie Blair | 0 | Daughter | None | Kentucky |
| 27 | James T. Sturgill | 59 | Head | Farmer | Kentucky |
| 28 | Nora L. Sturgill | 24 | Daughter | None | Kentucky |
| 29 | Joe M. Adams | 35 | Head | Farmer | Kentucky |
| 30 | Sarah H. Adams | 32 | Wife | None | Kentucky |
| 31 | Ora Adams | 13 | Daughter | None | Kentucky |
| 32 | Viola Adams | 12 | Daughter | None | Kentucky |
| 33 | Miles Adams | 10 | Son | None | Kentucky |
| 34 | Isaac Blair | 43 | Head | Farmer | Kentucky |
| 35 | Lurina Blair | 17 | Daughter | Housekeeper | Kentucky |
| 36 | Bertha Blair | 15 | Daughter | None | Kentucky |
| 37 | Letha Blair | 12 | Daughter | None | Kentucky |
| 38 | Hattie Blair | 11 | Daughter | None | Kentucky |
| 39 | Russell Blair | 9 | Son | None | Kentucky |
| 40 | Alexander Blair | 55 | Head | Farmer | Kentucky |
| 41 | Dallie Blair | 49 | Wife | None | Kentucky |
| 42 | Bessie Blair | 24 | Daughter | None | Kentucky |
| 43 | Theodore Blair | 21 | Son | Laborer | Kentucky |
| 44 | Luther Blair | 18 | Son | Laborer | Kentucky |
| 45 | Isora Blair | 15 | Daughter | None | Kentucky |
| 46 | Banner Adams | 25 | Head | Farmer | Kentucky |
| 47 | Grace Adams | 21 | Wife | None | Kentucky |
| 48 | Helen Adams | 1 | Sister | None | Kentucky |
| 49 | Lena Blair | 42 | Head | Farmer | Kentucky |
| 50 | Nora Blair | 39 | Wife | None | Kentucky |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)