MS
Mary Simpson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Harlan-County, Kentucky
Our Model Tree links this Mary Simpson across the 1920, 1930 and 1940 US Censuses in Harlan-County, Kentucky (XGBoost, ~Confirmed) — first a spouse (b.~1871), then head of a 9-person household.
Age 69
b. ~1871
Female
Spouse
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Harlan-County, Kentucky |
| Surname | Simpson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | District 7 |
| 1935 Residence (County) | Harlan |
| Additional Details | |
| Industry | 0 |
| Highest Grade | No 0 |
| 1935 Residence | Same Home |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | District 7 |
| Est. Birth Year | ~1871 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Rosell Gregory | Daughter | — | 3 | ~1937 |
| Martha Gregory | Daughter | — | 11 | ~1929 |
| Penny Gregory | Daughter | — | 37 | ~1903 |
| Mitchell Simpson | Head | — | 69 | ~1871 |
| Virgie Simpson | Other | — | 20 | ~1920 |
| John Gregory | Other | — | 24 | ~1916 |
| Joe Simpson | Son | — | 33 | ~1907 |
| James Gregory | Son | — | ~1940 | |
| Mary Simpson | Spouse | — | 69 | ~1871 |
Census Appearances
1920
Harlan, Kentucky
Spouse, age 45
Harlan, Kentucky · implied b. ~1875 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simpson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| 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
Harlan, Kentucky
Spouse, age 56
Harlan, Kentucky · implied b. ~1874 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simpson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 21 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read/Write | No |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Harlan-County, Kentucky
Spouse, age 69
Harlan-County, Kentucky · implied b. ~1871 — 9 household members
| Surname | Simpson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | District 7 |
| 1935 Residence (County) | Harlan |
| Industry | 0 |
| Highest Grade | No 0 |
| 1935 Residence | Same Home |
| 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 Simpson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Simpson
Spouse · 1940 · age 69 · b. ~1871 · 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 — Harlan-County, Kentucky
Open full size
1940 US Federal Census — Harlan-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01314-01051)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Berry Simpson | 42 | Head | Laborer | Kentucky |
| 2 | Mahala Simpson | 35 | Wife | — | Kentucky |
| 3 | Dewy Simpson | 8 | Son | — | Kentucky |
| 4 | Irene Simpson | 5 | Daughter | — | Kentucky |
| 5 | Billy R. Simpson | 3 | Son | — | Kentucky |
| 6 | Evelyn Simpson | 2 | Daughter | — | Kentucky |
| 7 | Charles R. Simpson | 0 | Son | — | Kentucky |
| 8 | Pauline Hudson | 11 | Daughter | — | Kentucky |
| 9 | Fred Unthank | 42 | Head | Coal Loader | Kentucky |
| 10 | Lydia Unthank | 33 | Wife | — | Kentucky |
| 11 | Royce Unthank | 17 | Son | Farm Labor | Kentucky |
| 12 | May Unthank | 14 | Daughter | — | Kentucky |
| 13 | Fred Jr. Unthank | 11 | Son | — | Kentucky |
| 14 | Niska Unthank | 8 | Daughter | — | Kentucky |
| 15 | Neda Unthank | 4 | Daughter | — | Kentucky |
| 16 | Joe Hensley | 51 | Head | Farmer | Kentucky |
| 17 | Ada Hensley | 44 | Wife | — | Kentucky |
| 18 | Hamp Hensley | 26 | Son | Stone Mason | Kentucky |
| 19 | Brit Hensley | 19 | Son | Coal Loader | Kentucky |
| 20 | Lawrence Hensley | 17 | Son | Farm Labor | Kentucky |
| 21 | Myrtle Hensley | 14 | Daughter | — | Kentucky |
| 22 | Mark Hensley | 12 | Son | — | Kentucky |
| 23 | Joe Jr. Hensley | 9 | Son | — | Kentucky |
| 24 | Mayfine Hensley | 6 | Daughter | — | Kentucky |
| 25 | Taylor White | 74 | Head | — | Kentucky |
| 26 | Nonnie White | 59 | Wife | — | Kentucky |
| 27 | Rosa White | 20 | Daughter | House Keeper | Kentucky |
| 28 | James H. Wyrick | 30 | Son-in-law | Coal Loader | Kentucky |
| 29 | Lydia Wyrick | 28 | Daughter | — | Kentucky |
| 30 | Richard Wyrick | 10 | Grandson | — | Kentucky |
| 31 | Charles H. Wyrick | 1 | Grandson | — | Kentucky |
| 32 | Mitchell Simpson | 69 | Head | — | Kentucky |
| 33 | Mary Simpson THIS PERSON | 69 | Wife | — | Kentucky |
| 34 | Joe Simpson | 33 | Son | Farm Labor | Kentucky |
| 35 | Virgie Simpson | 20 | Daughter-in-law | — | Kentucky |
| 36 | John Gregory | 24 | Son-in-law | Farm Labor | Kentucky |
| 37 | Penny Gregory | 37 | Daughter | — | Kentucky |
| 38 | Martha Gregory | 11 | Daughter | — | Kentucky |
| 39 | Rosell Gregory | 3 | Daughter | — | Kentucky |
| 40 | James W. Gregory | 0 | 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)