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Margaret Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Knox-County, Tennessee
Our Model Tree links this Margaret Thomas across the 1920, 1930 and 1940 US Censuses in Knox-County, Tennessee (XGBoost, ~Confirmed), with identified parents Harrison & H — first a daughter (b.~1915), then head of a 7-person household.
Age 25
b. ~1915
Female
Daughter
Born: Tennessee
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Knox-County, Tennessee |
| Surname | Thomas |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Tennessee |
| 1935 Residence (City) | Knoxville City |
| 1935 Residence (County) | Knox |
| Additional Details | |
| Occupation | Saleslady |
| Industry | Retail Department Store |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 500 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
| Occupation | Saleslady |
| Township / Ward | Knoxville City |
| Est. Birth Year | ~1915 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Thomas | Daughter | — | 25 | ~1915 |
| Evelyn Thomas | Daughter | — | 12 | ~1928 |
| Harrison Thomas | Head | — | 57 | ~1883 |
| Harold Thomas | Son | — | 23 | ~1917 |
| Everett Thomas | Son | — | 12 | ~1928 |
| West Thomas | Son | — | 2 | ~1938 |
| Lucy Thomas | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Knox, Tennessee
Daughter, age 5
Knox, Tennessee · implied b. ~1915 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Tennessee |
| Naturalization Status | Naturalized |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1930
Knox, Tennessee
Daughter, age 15
Knox, Tennessee · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Margaret E. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Tennessee |
| Age at First Marriage | 15 |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1940
Knox-County, Tennessee
Daughter, age 25
Knox-County, Tennessee · implied b. ~1915 — 7 household members
| Surname | Thomas |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Tennessee |
| 1935 Residence (City) | Knoxville City |
| 1935 Residence (County) | Knox |
| Occupation | Saleslady |
| Industry | Retail Department Store |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 500 |
| Highest Grade | H 4 |
| 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 Margaret Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harrison Thomas (~0.92 confidence) and father H Thomas (~0.92 confidence) and mother Mattie Thomas (~0.92 confidence) and mother Lucy Thomas (~0.92 confidence) and father Ben Thomas (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Harrison Thomas
b. ~1883
Source father
● Household
· direct · ~0.92
Father
H Thomas
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Mattie Thomas
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Lucy Thomas
b. ~1888
Source mother
● Household
· direct · ~0.92
Father
Ben Thomas
b. ~1889
Source father
● Household
· direct · ~0.92
This person
Anchor record
Margaret Thomas
Daughter · 1940 · age 25 · b. ~1915 · Tennessee
★ You are viewing this record
Sibling
West Thomas
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Thomas
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evelyn Thomas
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Everett Thomas
Sibling · 1940 · age 12
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 — Knox-County, Tennessee
Open full size
1940 US Federal Census — Knox-County, Tennessee
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03957-00540)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Wallace | 15 | Son | — | Tennessee |
| 42 | William Coleman | 57 | Head | Owner | Tennessee |
| 43 | Eva Coleman | 56 | Wife | Hand Work | Tennessee |
| 44 | Agatha Cooper | 32 | Daughter | Office Manager | Tennessee |
| 45 | Leona Lindsay | 23 | Lodger | Machine Operator | Tennessee |
| 46 | Robert Black | 31 | Head | Pharmacist | Tennessee |
| 47 | Eva Black | 30 | Wife | Proof Reader | Tennessee |
| 48 | Maynard Doane | 32 | Head | Manager | Tennessee |
| 49 | Eldra Doane | 29 | Wife | — | Tennessee |
| 50 | Arthur R Trinkas | 37 | Head | Teacher | Tennessee |
| 51 | Rosalie Trinkas | 35 | Wife | — | Tennessee |
| 52 | Robert W Trinkas | 2 | Son | — | Wisconsin |
| 53 | William Coleman | 26 | Head | Type Setter | Tennessee |
| 54 | Helen Coleman | 26 | Wife | Nurse | Tennessee |
| 55 | Vesta K Coleman | 1 | Daughter | — | Tennessee |
| 56 | Harrison Thomas | 57 | Head | Traveling Salesman | Tennessee |
| 57 | Lucy Thomas | 52 | Wife | — | Tennessee |
| 58 | Margaret Thomas THIS PERSON | 25 | Daughter | Saleslady | Tennessee |
| 59 | Harold Thomas | 23 | Son | Fountain Boy | Tennessee |
| 60 | Everett Thomas | 12 | Son | — | Tennessee |
| 61 | Evelyn Thomas | 12 | Daughter | — | Tennessee |
| 62 | West Thomas | 2 | Son | — | Virginia |
| 63 | Willard Rollins | 48 | Head | Office Clerk | Tennessee |
| 64 | Ruby Rollins | 40 | Wife | Saleslady | Tennessee |
| 65 | Carol Rollins | 2 | Daughter | — | Tennessee |
| 66 | William Baudendistel | 74 | Head | — | South Carolina |
| 67 | Clark Baudendistel | 45 | Son | Letter Carrier | Tennessee |
| 68 | Tryphena Baudendistel | 40 | Daughter | Music Teacher | Tennessee |
| 69 | Dewey Bagwell | 31 | Son-in-law | Engineer | Tennessee |
| 70 | Bessie Bagwell | 31 | Daughter | — | Tennessee |
| 71 | Ruby Keys | 22 | Lodger | Bookkeeper | Virginia |
| 72 | Barney Ballard | 32 | Head | Reporter | Tennessee |
| 73 | Georgia Ballard | 32 | Wife | — | Tennessee |
| 74 | David Ballard | 5 | Son | — | Tennessee |
| 75 | Ale Seibothem | 50 | Head | Proprietor Owner | Austria |
| 76 | Rose Seibothem | 47 | Wife | — | Austria |
| 77 | Solomon Seibothem | 25 | Son | Salesman | Tennessee |
| 78 | Joseph Seibothem | 22 | Son | Salesman | Tennessee |
| 79 | Irving Seibothem | 10 | Son | — | New York |
| 80 | Hugh R Stinnett | 49 | Head | Shipping Clerk | Tennessee |
Pedigree Summary
Margaret + 4 siblings
Gen 1 · 5 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)