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Mildred Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Denver-County, Colorado
Our Model Tree links this Mildred Thomas across the 1920, 1930 and 1940 US Censuses in Denver-County, Colorado (XGBoost, ~Confirmed), with identified parents Louis & Amelia — first a daughter (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Female
Daughter
Born: Colorado
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Denver-County, Colorado |
| Surname | Thomas |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver city & county |
| 1935 Residence (County) | Denver |
| Additional Details | |
| Occupation | Doctor's asst. |
| Industry | Doctors office |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 80 |
| Highest Grade | H 3 |
| 1935 Residence | Same House |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Doctor'S Asst. |
| Township / Ward | Denver City County |
| Est. Birth Year | ~1919 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mildred | Age | Birth yr |
|---|---|---|---|---|
| Mildred Thomas | Daughter | — | 21 | ~1919 |
| Sandra Thomas | Daughter | — | 3 | ~1937 |
| Louis Thomas | Head | — | 55 | ~1885 |
| Amelia Thomas | Spouse | — | 45 | ~1895 |
Census Appearances
1920
Denver, Colorado
Daughter, age 1
Denver, Colorado · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Italy |
| Mother's Birthplace | Colorado |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Denver, Colorado
Daughter, age 11
Denver, Colorado · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Mildred D. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Italy |
| Mother's Birthplace | Colorado |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Denver-County, Colorado
Daughter, age 21
Denver-County, Colorado · implied b. ~1919 — 4 household members
| Surname | Thomas |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver city & county |
| 1935 Residence (County) | Denver |
| Occupation | Doctor's asst. |
| Industry | Doctors office |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 80 |
| Highest Grade | H 3 |
| 1935 Residence | Same House |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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 Mildred Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Louis Thomas (~0.92 confidence) and mother Amelia Thomas (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Louis Thomas
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Amelia Thomas
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mildred Thomas
Daughter · 1940 · age 21 · b. ~1919 · Colorado
★ You are viewing this record
Sibling
Sandra Thomas
Sibling · 1940 · age 3
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 — Denver-County, Colorado
Open full size
1940 US Federal Census — Denver-County, Colorado
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-00484-00085)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William J Vitullo | 45 | Head | Warehouse Man | Colorado |
| 2 | Ella R Vitullo | 45 | Wife | — | Colorado |
| 3 | Clyde Elganti | 39 | Brother in law | Cleaner | Colorado |
| 4 | Sidney Vitullo | 27 | Head | Clerk | Colorado |
| 5 | Marie Vitullo | 26 | Wife | — | Colorado |
| 6 | Jean Marie Vitullo | 7 | Daughter | — | Colorado |
| 7 | Billy Vitullo | 6 | Son | — | Colorado |
| 8 | Albert Radetsky | 26 | Head | Auto Parts Man | Colorado |
| 9 | Donna Ruth Radetsky | 24 | Wife | — | Colorado |
| 10 | Arthur G Byles | 47 | Head | Salesman | Illinois |
| 11 | Emma M Byles | 47 | Wife | — | Minnesota |
| 12 | Marie B Byles | 22 | Daughter | Stenographer | South Dakota |
| 13 | John Spahn | 47 | Head | Garage Man | Colorado |
| 14 | Christina Spahn | 46 | Wife | — | Colorado |
| 15 | Gordon Spahn | 20 | Son | Baker | Colorado |
| 16 | Bernice Spahn | 16 | Daughter | — | Colorado |
| 17 | Ronald Spahn | 7 | Son | — | Colorado |
| 18 | William H Vandegrift | 38 | Head | Warehouse Man | Colorado |
| 19 | Dorothy Vandegrift | 38 | Wife | — | Colorado |
| 20 | William H Vandegrift | 10 | Son | — | Colorado |
| 21 | Stanley Wojtacha | 29 | Head | Sheet Metal Worker | Michigan |
| 22 | Grace Wojtacha | 28 | Wife | — | Colorado |
| 23 | Jo Ann Wojtacha | 2 | Daughter | — | Colorado |
| 24 | Louis Thomas | 55 | Head | Presser | Italy |
| 25 | Amelia Thomas | 45 | Wife | — | Colorado |
| 26 | Mildred Thomas THIS PERSON | 21 | Daughter | Doctor'S Asst. | Colorado |
| 27 | Sandra Thomas | 3 | Daughter | — | Colorado |
| 28 | John E Asher | 58 | Head | Laborer | Missouri |
| 29 | Grace Asher | 58 | Wife | — | Iowa |
| 30 | William E Snell | 43 | Head | Salesman | Colorado |
| 31 | Thelma Snell | 39 | Wife | — | Illinois |
| 32 | Gordon Snell | 7 | Son | — | Nebraska |
| 33 | Richard Snell | 5 | Son | — | Colorado |
| 34 | William S Miller | 48 | Head | Core Maker | Kansas |
| 35 | Nellie M Miller | 36 | Wife | — | Colorado |
| 36 | Eileen Miller | 18 | Daughter | — | Colorado |
| 37 | Earl Miller | 15 | Son | — | Colorado |
| 38 | Genevieve Miller | 12 | Daughter | — | Colorado |
Related Census Records
Pedigree Summary
Mildred + 1 sibling
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)