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Mary Thornton — 1940 US Census Record
Model Tree available1940 United States Federal Census · Monroe-County, Indiana
Our Model Tree links this Mary Thornton across the 1920, 1930 and 1940 US Censuses in Monroe-County, Indiana (XGBoost, ~Confirmed), with identified parents Gilbert & Pearl — first a daughter (b.~1920), then head of a 8-person household.
Age 20
b. ~1920
Female
Daughter
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Monroe-County, Indiana |
| Surname | Thornton |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Bloomington City |
| 1935 Residence (County) | Monroe |
| Additional Details | |
| Occupation | Stenographer |
| Class of Worker | PW |
| Hours Worked | 3 |
| Income (1939) | 262 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Stenographer |
| Township / Ward | Bloomington City |
| Est. Birth Year | ~1920 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Thornton | Daughter | — | 20 | ~1920 |
| Jacqueline Thornton | Daughter | — | 13 | ~1927 |
| Bernadine Thornton | Daughter | — | 15 | ~1925 |
| Gilbert Thornton | Head | — | 48 | ~1892 |
| Gilbert Thornton | Son | — | 11 | ~1929 |
| Stanley Thornton | Son | — | 9 | ~1931 |
| Ronald Thornton | Son | — | 7 | ~1933 |
| Pearl Thornton | Spouse | — | 41 | ~1899 |
Census Appearances
1920
Monroe, Indiana
Daughter, age
Monroe, Indiana · implied b. ~1920 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thornton |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Missouri |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Monroe, Indiana
Daughter, age 10
Monroe, Indiana · implied b. ~1920 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thornton |
| Given Name | Mary J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Monroe-County, Indiana
Daughter, age 20
Monroe-County, Indiana · implied b. ~1920 — 8 household members
| Surname | Thornton |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Bloomington City |
| 1935 Residence (County) | Monroe |
| Occupation | Stenographer |
| Class of Worker | PW |
| Hours Worked | 3 |
| Income (1939) | 262 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Gilbert Thornton (~0.92 confidence) and mother Pearl Thornton (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Gilbert Thornton
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Pearl Thornton
b. ~1899
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Thornton
Daughter · 1940 · age 20 · b. ~1920 · Indiana
★ You are viewing this record
Sibling
Gilbert Thornton
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Stanley Thornton
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernadine Thornton
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jacqueline Thornton
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ronald Thornton
Sibling · 1940 · age 7
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 — Monroe-County, Indiana
Open full size
1940 US Federal Census — Monroe-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01079-00138)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mabel Duncan | 44 | Head | — | Arkansas |
| 2 | Sarah L. Nickelson | 70 | Head | — | Arkansas |
| 3 | Claude Lindsey | 44 | Head | Cabinet Maker | Indiana |
| 4 | Nellie Lindsey | 46 | Wife | — | Indiana |
| 5 | Ralph Cambell | 27 | Lodger | Finisher | Indiana |
| 6 | Katherine Cambell | 26 | Lodger | — | Indiana |
| 7 | Jesse R. Rose | 50 | Head | Stone Cutter | Indiana |
| 8 | Mabel Pickett | 27 | Head | — | Indiana |
| 9 | Grover Richardson | 52 | Lodger | Veneer Room | Indiana |
| 10 | Edward Waddell | 32 | Head | Cabinet Maker | Indiana |
| 11 | Zella Waddell | 29 | Wife | Sales Lady | Kentucky |
| 12 | Sherman Waddell | 64 | Father | — | Indiana |
| 13 | Ida Deford | 61 | Head | — | Indiana |
| 14 | John Taylor | 56 | Brother | Handle Operator | Indiana |
| 15 | Belva Strouse | 50 | Head | — | Indiana |
| 16 | William Coellier | 44 | Head | Truck Driver | Indiana |
| 17 | Helen Coellier | 36 | Wife | Flat Work Ironer | Georgia |
| 18 | James Roark | 42 | Head | Machinist | Kentucky |
| 19 | Cora Roark | 40 | Wife | — | Indiana |
| 20 | Arvilla Roark | 19 | Daughter | New Worker | Indiana |
| 21 | Helen Roark | 16 | Daughter | — | Indiana |
| 22 | Guy Miller | 30 | Head | Stone Rubber | Indiana |
| 23 | La Verne Miller | 25 | Wife | — | Indiana |
| 24 | Donald Miller | 1 | Son | — | Indiana |
| 25 | Elizabeth Dolan | 79 | Head | — | Indiana |
| 26 | Homer Jacobs | 42 | Lodger | — | Indiana |
| 27 | Joseph Jacobs | 5 | Lodger | — | Indiana |
| 28 | Jennie Vclat | 55 | Head | Seamstress | Indiana |
| 29 | Betty Vclat | 16 | Daughter | — | Indiana |
| 30 | Mary Dotts | 19 | Lodger | Stenographer | Indiana |
| 31 | Gilbert Thornton | 48 | Head | Cabinet Maker | Indiana |
| 32 | Pearl Thornton | 41 | Wife | — | Indiana |
| 33 | Mary Thornton THIS PERSON | 20 | Daughter | Stenographer | Indiana |
| 34 | Bernadine Thornton | 15 | Daughter | — | Indiana |
| 35 | Jacqueline Thornton | 13 | Daughter | — | Indiana |
| 36 | Gilbert Jr. Thornton | 11 | Son | — | Indiana |
| 37 | Stanley Thornton | 9 | Son | — | Indiana |
| 38 | Ronald Lee Thornton | 7 | Son | — | Indiana |
| 39 | Marlin Thornton | 27 | Head | Research Work | Indiana |
| 40 | Imogene Thornton | 21 | Wife | — | Indiana |
Pedigree Summary
Mary + 5 siblings
Gen 1 · 2 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)