DT
Donald Thompson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Louis-County, Minnesota
Our Model Tree links this Donald Thompson across the 1930 and 1940 US Censuses in St.-Louis-County, Minnesota (XGBoost, ~Confirmed) — first a son (b.~1921), then head of a 9-person household.
Age 19
b. ~1921
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-County, Minnesota |
| Surname | Thompson |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | R |
| 1935 Residence (County) | St. Louis |
| Additional Details | |
| Occupation | New worker |
| Class of Worker | PW |
| Hours Worked | 10 |
| Income (1939) | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | New Worker |
| Township / Ward | Brevator T50R17 |
| Est. Birth Year | ~1921 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Donald | Age | Birth yr |
|---|---|---|---|---|
| Leonard Thompson | Son | — | 5 | ~1935 |
| Clarence Thompson | Son | — | 4 | ~1936 |
| Lloyd Thompson | Son | — | 10 | ~1930 |
| Catherine Thompson | Spouse | — | 43 | ~1897 |
| Dorothy Thompson | Daughter | — | 15 | ~1925 |
| Arthur Thompson | Son | — | 12 | ~1928 |
| Catherine Thompson | Daughter | — | 8 | ~1932 |
| Donald Thompson | Son | — | 19 | ~1921 |
| Louis Thompson | Head | — | 44 | ~1896 |
Census Appearances
1930
St Louis, …
Son, age 9
St Louis, Minnesota · implied b. ~1921 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
St.-Louis-County, Minnesota
Son, age 19
St.-Louis-County, Minnesota · implied b. ~1921 — 9 household members
| Surname | Thompson |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | R |
| 1935 Residence (County) | St. Louis |
| Occupation | New worker |
| Class of Worker | PW |
| Hours Worked | 10 |
| Income (1939) | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Minnesota |
| 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 Donald Thompson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Donald Thompson
Son · 1940 · age 19 · b. ~1921 · Minnesota
★ You are viewing this record
Sibling
Clarence Thompson
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lloyd Thompson
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Thompson
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Thompson
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Thompson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leonard Thompson
Sibling · 1940 · age 5
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 — St.-Louis-County, Minnesota
Open full size
1940 US Federal Census — St.-Louis-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01955-00231)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elmi E. Dougherty | 22 | Wife | — | Minnesota |
| 2 | Laurel Dougherty | 2 | Son | — | Minnesota |
| 3 | Otis V. Seebuck | 52 | Head | Electrician | Minnesota |
| 4 | Alma Seebuck | 46 | Wife | — | Minnesota |
| 5 | Lester Seebuck | 21 | Son | Dairy Farmer | Minnesota |
| 6 | Virgil Seebuck | 18 | Son | — | Wisconsin |
| 7 | Margaret Seebuck | 15 | Daughter | — | Minnesota |
| 8 | Oscar W. Seebuck | 46 | Head | Clerk | Minnesota |
| 9 | Bertha Seebuck | 75 | Mother | — | Germany |
| 10 | James D. King | 56 | Head | Truck Farm | Ohio |
| 11 | Jane King | 43 | Wife | — | Minnesota |
| 12 | Ralph King | 23 | Son | Laborer | Minnesota |
| 13 | James King | 17 | Son | Laborer | Minnesota |
| 14 | Charles King | 15 | Son | — | Minnesota |
| 15 | Patrick King | 13 | Son | — | Minnesota |
| 16 | Mary King | 9 | Daughter | — | Minnesota |
| 17 | Lorraine King | 7 | Daughter | — | Minnesota |
| 18 | Stanley King | 6 | Son | — | Minnesota |
| 19 | Louis D. Thompson | 44 | Head | Laborer | Minnesota |
| 20 | Catherine Thompson | 43 | Wife | — | Minnesota |
| 21 | Donald Thompson THIS PERSON | 19 | Son | New Worker | Minnesota |
| 22 | Dorothy Thompson | 15 | Daughter | — | Minnesota |
| 23 | Arthur Thompson | 12 | Son | — | Minnesota |
| 24 | Lloyd Thompson | 10 | Son | — | Minnesota |
| 25 | Catherine Thompson | 8 | Daughter | — | Minnesota |
| 26 | Leonard Thompson | 5 | Son | — | Minnesota |
| 27 | Clarence Thompson | 4 | Son | — | Minnesota |
| 28 | Rasmus D. Bruland | 56 | Head | Landscape | Norway |
| 29 | Albert H. Dalton | 35 | Head | Bus Driver | Minnesota |
| 30 | Catherine Dalton | 27 | Wife | — | Wisconsin |
| 31 | Kathleen Dalton | 5 | Daughter | — | Minnesota |
| 32 | James Dalton | 1 | Son | — | Minnesota |
| 33 | Victor Peterson | 58 | Head | Foreman | Sweden |
| 34 | Ruth V. Peterson | 27 | Wife | — | North Dakota |
| 35 | Lawrence Peterson | 7 | Son | — | Minnesota |
| 36 | Magnus A. Bloom | 68 | Head | — | Sweden |
| 37 | Leonard Lamphier | 29 | Head | Laborer | Minnesota |
| 38 | Alvara Lamphier | 30 | Wife | — | South Dakota |
| 39 | Richard Lamphier | 3 | Son | — | Minnesota |
| 40 | Mildred Bloom | 11 | Daughter | — | Minnesota |
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)