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Louis Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Morrison-County, Minnesota
Our Model Tree links this Louis Thomas across the 1920, 1930 and 1940 US Censuses in Morrison-County, Minnesota (XGBoost, ~Confirmed), with identified parents Dominic & Mary — first a head (b.~1901), then head of a 6-person household.
Age 39
b. ~1901
Male
Head
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Morrison-County, Minnesota |
| Surname | Thomas |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Pike Creek Twp |
| 1935 Residence (County) | Morrison |
| Additional Details | |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Farmer |
| Township / Ward | Pike Creek Twp |
| Est. Birth Year | ~1901 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Louis | Age | Birth yr |
|---|---|---|---|---|
| Theodore Thomas | Son | — | 3 | ~1937 |
| Gerald Thomas | Son | — | ~1940 | |
| Agnes Thomas | Spouse | — | 29 | ~1911 |
| Louis Thomas | Head | — | 39 | ~1901 |
| Carol Thomas | Daughter | — | 2 | ~1938 |
| Fred Thomas | Son | — | 5 | ~1935 |
Census Appearances
1920
Morrison, Minnesota
Son, age 19
Morrison, Minnesota · implied b. ~1901 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Louis |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Farm laborer |
| Industry | Home farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Morrison, Minnesota
Son, age 29
Morrison, Minnesota · implied b. ~1901 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Louis R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Farm laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Morrison-County, Minnesota
Head, age 39
Morrison-County, Minnesota · implied b. ~1901 — 6 household members
| Surname | Thomas |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Pike Creek Twp |
| 1935 Residence (County) | Morrison |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| 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 Louis Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Dominic Thomas (~0.92 confidence) and mother Mary Thomas (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Dominic Thomas
b. ~1852
Source father
● Household
· direct · ~0.92
Mother
Mary Thomas
b. ~1866
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Louis Thomas
Head · 1940 · age 39 · b. ~1901 · 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 — Morrison-County, Minnesota
Open full size
1940 US Federal Census — Morrison-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01939-00625)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mattie Olson | 78 | Head | — | Sweden |
| 42 | Otto Olson | 52 | Head | Farmer | Sweden |
| 43 | Marion E. Olson | 42 | Wife | — | Minnesota |
| 44 | Neal A. Olson | 13 | Son | — | Minnesota |
| 45 | Frances Juny | 57 | Head | — | Poland |
| 46 | Simon Juny | 29 | Son | Farmer | Minnesota |
| 47 | Rose Juny | 16 | Daughter | New Worker | Minnesota |
| 48 | Arthur R. Peterson | 42 | Head | Farmer | Illinois |
| 49 | Selma Peterson | 71 | Mother | — | Sweden |
| 50 | Arthur Carlson | 48 | Head | Farmer | Minnesota |
| 51 | Harrell Carlson | 22 | Son | — | Minnesota |
| 52 | William Carlson | 39 | Brother | Farm Labor | Minnesota |
| 53 | John B. Blechinger | 53 | Head | Farm Labor | Germany |
| 54 | Paul Blechinger | 23 | Son | Farm Labor | Minnesota |
| 55 | Eleanore Blechinger | 21 | Daughter in law | — | Minnesota |
| 56 | Gayle Blechinger | 2 | Daughter | — | Minnesota |
| 57 | Diana Blechinger | 1 | Daughter | — | Minnesota |
| 58 | Anna Eidenshink | 52 | Sister | House Work | Minnesota |
| 59 | Louis Thomas THIS PERSON | 39 | Head | Farmer | Minnesota |
| 60 | Agnes Thomas | 29 | Wife | — | Minnesota |
| 61 | Fred Thomas | 5 | Son | — | Minnesota |
| 62 | Theodore Thomas | 3 | Son | — | Minnesota |
| 63 | Carol Louise Thomas | 2 | Daughter | — | Minnesota |
| 64 | Gerald Thomas | 0 | Son | — | Minnesota |
| 65 | Alfred E. Dahl | 50 | Head | Farmer | Minnesota |
| 66 | Helen M. Dahl | 39 | Wife | — | Minnesota |
| 67 | Carroll Dahl | 11 | Son | — | Minnesota |
| 68 | V. Loren Dahl | 6 | Son | — | Minnesota |
| 69 | Albert D. Thomas | 41 | Head | Farmer | Minnesota |
| 70 | Agnes Thomas | 24 | Wife | — | Minnesota |
| 71 | Evelyn Thomas | 12 | Daughter | — | Minnesota |
| 72 | Charles E. Larson | 47 | Head | Labor | Sweden |
| 73 | Alice Larson | 32 | Wife | — | Minnesota |
| 74 | Donald Larson | 10 | Son | — | Minnesota |
| 75 | Hazel Larson | 3 | Daughter | — | Minnesota |
| 76 | Richard Larson | 1 | Son | — | Minnesota |
| 77 | Laura Sutton | 68 | Mother in law | Housework | Indiana |
| 78 | Olive Larson | 49 | Head | — | Minnesota |
| 79 | Carl J. A. Anderson | 68 | Head | Farmer | Sweden |
| 80 | Harriet Anderson | 51 | Wife | — | Pennsylvania |
Pedigree Summary
Louis
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)