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Mary Blackburn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Caldwell-County, Kentucky
Our Model Tree links this Mary Blackburn across the 1920, 1930 and 1940 US Censuses in Caldwell-County, Kentucky (XGBoost, ~Confirmed) — first a spouse (b.~1869), then head of a 4-person household.
Age 71
b. ~1869
Female
Spouse
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Caldwell-County, Kentucky |
| Surname | Blackburn |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 71 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | MAGISTERIAL DIST 7, Donaldson |
| 1935 Residence (County) | CALDWELL |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Magisterial Dist 7 Donaldson |
| Est. Birth Year | ~1869 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Blackburn | Spouse | — | 71 | ~1869 |
| James Holeman | Other | — | 61 | ~1879 |
| Otie Holeman | Daughter | — | 48 | ~1892 |
| James Blackburn | Head | — | 71 | ~1869 |
Census Appearances
1920
Caldwell, Kentucky
Spouse, age 49
Caldwell, Kentucky · implied b. ~1871 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blackburn |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| 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
Caldwell, Kentucky
Other, age 60
Caldwell, Kentucky · implied b. ~1870 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blackburn |
| Given Name | Mary G |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 18 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Caldwell-County, Kentucky
Spouse, age 71
Caldwell-County, Kentucky · implied b. ~1869 — 4 household members
| Surname | Blackburn |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 71 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | MAGISTERIAL DIST 7, Donaldson |
| 1935 Residence (County) | CALDWELL |
| 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 Mary Blackburn across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Blackburn
Spouse · 1940 · age 71 · b. ~1869 · Kentucky
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Caldwell-County, Kentucky
Open full size
1940 US Federal Census — Caldwell-County, Kentucky
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-01287-00801)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Wanter J. Littlefield | 9 | Son | — | Kentucky |
| 42 | Ben D. Littlefield | 6 | Son | — | Kentucky |
| 43 | Glenn Kid E. Littlefield | 3 | Son | — | Kentucky |
| 44 | James Blackburn | 71 | Head | Farmer | Kentucky |
| 45 | Mary Blackburn THIS PERSON | 71 | Wife | — | Kentucky |
| 46 | James M. Holeman | 61 | Son-in-law | Farm Laborer | Kentucky |
| 47 | Otie L. Holeman | 48 | Daughter | — | Kentucky |
| 48 | Grover Stephens | 54 | Head | Farmer | Kentucky |
| 49 | Everett Stephens | 50 | Brother | Laborer | Kentucky |
| 50 | Roosey Roberts | 26 | Head | Farmer | Kentucky |
| 51 | Willie Belle Roberts | 21 | Wife | — | Kentucky |
| 52 | William Beans | 72 | Head | Farmer | Kentucky |
| 53 | Victoria Beans | 70 | Wife | — | Kentucky |
| 54 | Alise Dunbar | 34 | Head | Farmer | Kentucky |
| 55 | Retha Dunbar | 39 | Wife | — | Kentucky |
| 56 | Erine Franklin | 16 | Step-son | — | Kentucky |
| 57 | Ellis Felker | 40 | Head | Farmer | Kentucky |
| 58 | Juanita Felker | 34 | Wife | — | Texas |
| 59 | Elsie Felker | 17 | Daughter | — | Kentucky |
| 60 | Hershel Felker | 15 | Son | — | Kentucky |
| 61 | William Felker | 12 | Son | — | Kentucky |
| 62 | Imogene Felker | 9 | Daughter | — | Kentucky |
| 63 | Dorthy Felker | 5 | Daughter | — | Kentucky |
| 64 | Dennie Felker | 32 | Head | Laborer | Kentucky |
| 65 | Tilene Felker | 29 | Wife | — | Kentucky |
| 66 | Dennie D. Felker | 4 | Son | — | Kentucky |
| 67 | Willie Felker | 31 | Head | Farmer | Kentucky |
| 68 | Cora Felker | 30 | Wife | — | Kentucky |
| 69 | Bessie M. Felker | 13 | Daughter | — | Kentucky |
| 70 | Opal A. Felker | 11 | Daughter | — | Kentucky |
| 71 | Andrew J. Felker | 67 | Head | — | Kentucky |
| 72 | G-Ann Felker | 65 | Wife | — | Kentucky |
| 76 | Burtis Sr. Dunbar | 50 | Head | Farmer | Kentucky |
| 77 | Mae Dunbar | 50 | Wife | — | Kentucky |
| 78 | Burtis Jr. Dunbar | 21 | Son | Farmer | Kentucky |
| 79 | Doris Dunbar | 19 | Daughter-in-law | — | Kentucky |
| 80 | Ulise Dunbar | 11 | 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)