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Mary Thornton — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Polk-County, Florida
Our Model Tree links this Mary Thornton across the 1930 and 1940 US Censuses in Polk-County, Florida (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 11-person household.
Age 17
b. ~1923
Female
Daughter
Born: Tennessee
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Florida |
| Surname | Thornton |
| Given Name | Mary Bell |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Tennessee |
| 1935 Residence (City) | Rural |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Occupation | Section Hand |
| Industry | Canning Plant |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 76 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
| Occupation | Section Hand |
| Township / Ward | Rural |
| Est. Birth Year | ~1923 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Joe Thornton | Daughter | — | 3 | ~1937 |
| Billy Thornton | Daughter | — | 7 | ~1933 |
| Bessie Thornton | Daughter | — | 21 | ~1919 |
| Mary Thornton | Daughter | — | 17 | ~1923 |
| Margaret Thornton | Daughter | — | 13 | ~1927 |
| W Thornton | Head | — | 54 | ~1886 |
| Taylor Hatley | Other | — | 24 | ~1916 |
| Justin Hatley | Other | — | 16 | ~1924 |
| Billy Thornton | Son | — | 15 | ~1925 |
| John Thornton | Son | — | 10 | ~1930 |
| Maude Thornton | Spouse | — | 44 | ~1896 |
Census Appearances
1930
Polk, Florida
Daughter, age 7
Polk, Florida · implied b. ~1923 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thornton |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Tennessee |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1940
Polk-County, Florida
Daughter, age 17
Polk-County, Florida · implied b. ~1923 — 11 household members
| Surname | Thornton |
| Given Name | Mary Bell |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Tennessee |
| 1935 Residence (City) | Rural |
| 1935 Residence (County) | Polk |
| Occupation | Section Hand |
| Industry | Canning Plant |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 76 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
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 Thornton across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Thornton
Daughter · 1940 · age 17 · b. ~1923 · Florida
★ You are viewing this record
Sibling
John Thornton
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joe Thornton
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bessie Thornton
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Billy Thornton
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Thornton
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Billy Thornton
Sibling · 1940 · age 15
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 — Polk-County, Florida
Open full size
1940 US Federal Census — Polk-County, Florida
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00614-00045)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | James Maulden | 48 | Head | Wholesale | Florida |
| 42 | Charles Maulden | 9 | Son | — | Florida |
| 43 | Rancy Astin | 41 | Head | Painter | Georgia |
| 44 | Lucy Astin | 40 | Wife | Housewife | Connecticut |
| 45 | Lester Astin | 14 | Son | — | Florida |
| 46 | Alvin Astin | 13 | Son | — | Florida |
| 47 | Lenora Astin | 11 | Daughter | — | Georgia |
| 48 | Edith Astin | 10 | Daughter | — | Georgia |
| 49 | Frances Astin | 9 | Daughter | — | Florida |
| 50 | Clara Astin | 6 | Daughter | — | Florida |
| 51 | Melvin Astin | 3 | Son | — | Florida |
| 52 | Francis Astin | 2 | Daughter | — | Florida |
| 53 | W. R. Thornton | 54 | Head | Blacksmith | Tennessee |
| 54 | Maude Thornton | 44 | Wife | — | Tennessee |
| 55 | Bessie Lee Thornton | 21 | Daughter | — | Tennessee |
| 56 | Mary Bell Thornton THIS PERSON | 17 | Daughter | Section Hand | Tennessee |
| 57 | Billy Thornton | 15 | Son | — | Tennessee |
| 58 | Margaret Thornton | 13 | Daughter | — | Florida |
| 59 | John V. Thornton | 10 | Son | — | Florida |
| 60 | Billy Joe Thornton | 7 | Daughter | — | Florida |
| 61 | Joe Ann Thornton | 3 | Daughter | — | Florida |
| 62 | Taylor Hatley | 24 | Nephew | Farm Labor | Tennessee |
| 63 | Justin Hatley | 16 | Nephew | — | Tennessee |
| 64 | America Coker | 56 | Head | Seamstress | Florida |
| 65 | Ruth Coker | 15 | Daughter | — | Florida |
| 66 | Luke Mar Young | 31 | Head | Grader | Florida |
| 67 | John C. Young | 9 | Son | — | Florida |
| 68 | Sarah Bush | 63 | Head | Seamstress | Georgia |
| 69 | L. J. Thomas | 24 | Head | Farm Labor | Georgia |
| 70 | Odessa Thomas | 21 | Wife | — | Georgia |
| 71 | J. H. Thomas | 1 | Son | — | Georgia |
| 72 | Elizabeth Sumner | 77 | Head | — | Alabama |
| 73 | Mamie Sumner | 59 | Head | — | Georgia |
| 74 | Grady Sumner | 23 | Son | — | Georgia |
| 75 | Lila Clements | 37 | Daughter | Saleslady | Florida |
| 76 | James Franklin Clements | 10 | Son | — | Florida |
| 77 | John Franklin Clements | 4 | Son | — | Florida |
| 78 | John A. Tucker | 54 | Head | Farming | Georgia |
| 79 | Mattie Tucker | 42 | Wife | — | South Carolina |
| 80 | Buck Tucker | 15 | Son | Laborer | Florida |
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)