MS
Mary Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Pike-County, Kentucky
Our Model Tree links this Mary Smith across the 1920, 1930 and 1940 US Censuses in Pike-County, Kentucky (XGBoost, ~Confirmed), with identified parents Pat & Oct — first a daughter (b.~1918), then head of a 7-person household.
Age 22
b. ~1918
Female
Daughter
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pike-County, Kentucky |
| Surname | Smith |
| Given Name | Mary Alice |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Magisterial District No. 6 |
| 1935 Residence (County) | Pike |
| Additional Details | |
| Occupation | Maid |
| Industry | Private Home |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 520 |
| Highest Grade | H 8 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Maid |
| Township / Ward | Magisterial District No 6 |
| Est. Birth Year | ~1918 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Marie Smith | Daughter | — | 9 | ~1931 |
| Mary Smith | Daughter | — | 22 | ~1918 |
| Ethel Smith | Daughter | — | 26 | ~1914 |
| Flossie Smith | Daughter | — | 19 | ~1921 |
| Pat Smith | Head | — | 64 | ~1876 |
| John Smith | Son | — | 10 | ~1930 |
| Victoria Smith | Spouse | — | 56 | ~1884 |
Census Appearances
1920
Pike, Kentucky
Daughter, age 1
Pike, Kentucky · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Mary Alice |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Virginia |
| Occupation | none |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Pike, Kentucky
Daughter, age 11
Pike, Kentucky · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Mary Alice |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Pike-County, Kentucky
Daughter, age 22
Pike-County, Kentucky · implied b. ~1918 — 7 household members
| Surname | Smith |
| Given Name | Mary Alice |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Magisterial District No. 6 |
| 1935 Residence (County) | Pike |
| Occupation | Maid |
| Industry | Private Home |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 520 |
| Highest Grade | H 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 Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Pat Smith (~0.92 confidence) and father Oct Smith (~0.92 confidence) and father Pat Smith (~0.92 confidence) and mother Victoria Smith (~0.92 confidence) and mother Victoria Smith (~0.92 confidence) and mother Victoria Smith (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Pat Smith
b. ~1873
Source father
● Household
· direct · ~0.92
Father
Oct Smith
b. ~1876
Source father
● Household
· direct · ~0.92
Father
Pat Smith
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Victoria Smith
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Victoria Smith
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Victoria Smith
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Smith
Daughter · 1940 · age 22 · b. ~1918 · Kentucky
★ You are viewing this record
Sibling
Flossie Smith
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Smith
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ethel Smith
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Smith
Sibling · 1940 · age 10
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-t0627-01351-00228)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Walter Williamson | 22 | Head | Miner | Kentucky |
| 42 | Naomi Williamson | 19 | Wife | — | Kentucky |
| 43 | Martin Thacker | 43 | Head | Miner | Kentucky |
| 44 | Mazie Thacker | 48 | Wife | — | Kentucky |
| 45 | Luther Thacker | 19 | Son | — | Kentucky |
| 46 | Arthur Thacker | 18 | Son | — | Kentucky |
| 47 | Oscar Thacker | 17 | Son | — | Kentucky |
| 48 | Iona Thacker | 15 | Daughter | — | Kentucky |
| 49 | Johnie Thacker | 14 | Son | — | Kentucky |
| 50 | Robert Lee Thacker | 13 | Son | — | Kentucky |
| 51 | Gladys Thacker | 10 | Daughter | — | Kentucky |
| 52 | Raymond Thacker | 8 | Son | — | Kentucky |
| 53 | Thomas Thacker | 7 | Son | — | Kentucky |
| 54 | Ervin Thacker | 4 | Son | — | Kentucky |
| 55 | John Thacker | 42 | Head | Miner | Kentucky |
| 56 | Gertrude Thacker | 32 | Wife | — | Kentucky |
| 57 | Bobby Thacker | 10 | Son | — | Kentucky |
| 58 | Gene Ann Thacker | 8 | Daughter | — | Kentucky |
| 59 | R. T. Smith | 63 | Head | Farmer | Kentucky |
| 60 | Vicy Smith | 60 | Wife | — | Kentucky |
| 61 | Fred Smith | 24 | Grandson | Farmer | Kentucky |
| 62 | George Fuller | 30 | Head | Miner | Kentucky |
| 63 | Erma Fuller | 24 | Wife | — | Kentucky |
| 64 | John Walter Fuller | 5 | Son | — | Kentucky |
| 65 | Edward Ellis Fuller | 4 | Son | — | Kentucky |
| 66 | Leon Fuller | 3 | Son | — | Kentucky |
| 67 | Ida Ann Fuller | 1 | Daughter | — | Kentucky |
| 68 | Pat Smith | 64 | Head | Farmer | Kentucky |
| 69 | Victoria Smith | 56 | Wife | — | Virginia |
| 70 | Ethel Smith | 26 | Daughter | Maid | Kentucky |
| 71 | Mary Alice Smith THIS PERSON | 22 | Daughter | Maid | Kentucky |
| 72 | Flossie Smith | 19 | Daughter | — | Kentucky |
| 73 | John Smith | 10 | Son | — | Kentucky |
| 74 | Marie Smith | 9 | Daughter | — | Kentucky |
| 75 | Delmar Williamson | 25 | Head | Miner | Kentucky |
| 76 | Ethel Williamson | 23 | Wife | — | Kentucky |
| 77 | John F. Williamson | 1 | Son | — | Kentucky |
| 78 | Hugh Williamson | 45 | Head | Miner | Kentucky |
| 79 | Peggy Williamson | 40 | Wife | — | Kentucky |
| 80 | Alicha Williamson | 20 | Daughter | — | Kentucky |
Pedigree Summary
Mary + 4 siblings
Gen 1 · 6 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)