FT
Frank Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Douglas-County, Minnesota
Our Model Tree links this Frank Thomas across the 1920, 1930 and 1940 US Censuses in Douglas-County, Minnesota (XGBoost, ~Confirmed), with identified parents Ignatz & Pauline — first a head (b.~1908), then head of a 3-person household.
Age 32
b. ~1908
Male
Head
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Douglas-County, Minnesota |
| Surname | Thomas |
| Given Name | Frank |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Millerville |
| 1935 Residence (County) | Douglas |
| Additional Details | |
| Occupation | Farming |
| Class of Worker | OA |
| Hours Worked | 70 |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Farming |
| Township / Ward | Millerville |
| Est. Birth Year | ~1908 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Frank Thomas | Head | — | 32 | ~1908 |
| Myron Thomas | Son | — | 6 | ~1934 |
| Ethel Thomas | Spouse | — | 27 | ~1913 |
Census Appearances
1920
Douglas, Minnesota
Son, age 12
Douglas, Minnesota · implied b. ~1908 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Naturalization Status | Naturalized |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Douglas, Minnesota
Son, age 22
Douglas, Minnesota · implied b. ~1908 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Frank A |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Germany |
| Mother's Birthplace | Minnesota |
| Occupation | Laborer |
| Industry | General Farming |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | no |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Douglas-County, Minnesota
Head, age 32
Douglas-County, Minnesota · implied b. ~1908 — 3 household members
| Surname | Thomas |
| Given Name | Frank |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Millerville |
| 1935 Residence (County) | Douglas |
| Occupation | Farming |
| Class of Worker | OA |
| Hours Worked | 70 |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Frank Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ignatz Thomas (~0.92 confidence) and mother Pauline Thomas (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ignatz Thomas
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Pauline Thomas
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Frank Thomas
Head · 1940 · age 32 · b. ~1908 · Minnesota
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Douglas-County, Minnesota
Open full size
1940 US Federal Census — Douglas-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01919-00823)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Barbara Klinck | 23 | Wife | Housework | Minnesota |
| 42 | Gerald Klinck | 3 | Son | — | Minnesota |
| 43 | Delores Klinck | 2 | Daughter | — | Minnesota |
| 44 | Aloys Ruers | Rivers | 27 | Head | Farming | Minnesota |
| 45 | Bimba | Biruba Ruers | Rivers | 25 | Wife | Housework | Minnesota |
| 46 | Janice Ruers | Rivers | 1 | Daughter | — | Minnesota |
| 47 | Arthur N. Politeski | Politeske | 28 | Head | Farming | Minnesota |
| 48 | Veronica L. Politeski | Politeske | 21 | Wife | Housework | Minnesota |
| 49 | Muriel E. Politeski | Politeske | 4 | Daughter | — | Minnesota |
| 50 | Frank Thomas THIS PERSON | 32 | Head | Farming | Minnesota |
| 51 | Ethel Thomas | 27 | Wife | Housework | Minnesota |
| 52 | Myron Thomas | 6 | Son | — | Minnesota |
| 53 | Anton Koeplin | 67 | Head | Farm Work | Minnesota |
| 54 | Mary Koeplin | 62 | Wife | Housework | Holland |
| 55 | Raymond Koeplin | 23 | Son | Farming | Minnesota |
| 56 | Frank M. Baas | 32 | Head | Farming | Minnesota |
| 57 | Eva M. Baas | 28 | Wife | Housework | Minnesota |
| 58 | Adell E. Baas | 8 | Daughter | — | Minnesota |
| 59 | Kedrick J. Baas | 6 | Son | — | Minnesota |
| 60 | Juliana M. Baas | 5 | Daughter | — | Minnesota |
| 61 | Rander G. Baas | 4 | Son | — | Minnesota |
| 62 | Cyril A. Baas | 2 | Son | — | Minnesota |
| 63 | Frank S. Cichy | 45 | Head | Farming | Minnesota |
| 64 | Joe Cichy | 47 | Brother | Farming | Minnesota |
| 65 | Ed. Koeplin | 37 | Head | Farming | Minnesota |
| 66 | Dorothy E. Koeplin | 35 | Wife | Housework | Minnesota |
| 67 | Gerald A. Koeplin | 13 | Son | — | Minnesota |
| 68 | Lucile M. Koeplin | 12 | Daughter | — | Minnesota |
| 69 | Carole M. Koeplin | 2 | Daughter | — | Minnesota |
| 70 | Adolph F. Wagner | 49 | Head | Farming | Minnesota |
| 71 | Helen M. Wagner | 46 | Wife | Housework | Minnesota |
| 72 | Helen J. Wagner | 16 | Daughter | Housework | Minnesota |
| 73 | Roman J. Wagner | 14 | Son | Farm Work | Minnesota |
| 74 | Verine L. Wagner | 10 | Daughter | — | Minnesota |
| 75 | Adolph J. Wagner | 6 | Son | — | Minnesota |
| 76 | Erna J. M. Wagner | 4 | Daughter | — | Minnesota |
| 77 | Chas. De Bilzan | De Bilzen | 71 | Head | Retired Farmer | Minnesota |
| 78 | Francis De Bilzan | De Bilzen | 67 | Wife | Housework | Minnesota |
| 79 | Melvin De Bilzan | De Bilzen | 28 | Son | Farm Work | Minnesota |
| 80 | Mary De Bilzan | De Bilzen | 25 | Daughter in law | Housework | Minnesota |
Pedigree Summary
Frank
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)