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Richard Thompson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Rock-County, Minnesota
Our Model Tree links this Richard Thompson across the 1930 and 1940 US Censuses in Rock-County, Minnesota (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 9-person household.
Age 15
b. ~1925
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Rock-County, Minnesota |
| Surname | Thompson |
| Given Name | Richard O. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Martin |
| 1935 Residence (County) | Rock |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Martin |
| Est. Birth Year | ~1925 |
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 Richard | Age | Birth yr |
|---|---|---|---|---|
| Carol Thompson | Daughter | — | 10 | ~1930 |
| Eleanor Thompson | Daughter | — | 16 | ~1924 |
| Benne Thompson | Head | — | 49 | ~1891 |
| Donald Thompson | Son | — | 5 | ~1935 |
| Chester Thompson | Son | — | 22 | ~1918 |
| Merle Thompson | Son | — | 24 | ~1916 |
| Robert Thompson | Son | — | 13 | ~1927 |
| Richard Thompson | Son | — | 15 | ~1925 |
| Clara Thompson | Spouse | — | 46 | ~1894 |
Census Appearances
1930
Rock, Minnesota
Son, age 3
Rock, Minnesota · implied b. ~1927 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Richard C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Rock-County, Minnesota
Son, age 15
Rock-County, Minnesota · implied b. ~1925 — 9 household members
| Surname | Thompson |
| Given Name | Richard O. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Martin |
| 1935 Residence (County) | Rock |
| Highest Grade | No 6 |
| 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 Richard Thompson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Richard Thompson
Son · 1940 · age 15 · b. ~1925 · Minnesota
★ You are viewing this record
Sibling
Merle Thompson
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Thompson
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carol Thompson
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Chester Thompson
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Thompson
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Thompson
Sibling · 1940 · age 13
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 — Rock-County, Minnesota
Open full size
1940 US Federal Census — Rock-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01954-00277)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Marianne G. Thompson | 4 | daughter | — | Minnesota |
| 2 | Rodney D. Thompson | 4 | son | — | Minnesota |
| 3 | Richard A. Johnson | 44 | Head | Farmer | Minnesota |
| 4 | Sadie A. Johnson | 44 | Wife | — | Minnesota |
| 5 | Eleanore M. Johnson | 16 | daughter | — | Minnesota |
| 6 | Rodney G. Johnson | 12 | son | — | Minnesota |
| 7 | Lauris S. Krogh | 23 | hired hand | Laborer | Minnesota |
| 8 | Harold H. Sather | 27 | Head | Farmer | Minnesota |
| 9 | Ethel G. Sather | 26 | Wife | — | Minnesota |
| 10 | Earl N. Nelson | 31 | Head | Farmer | Minnesota |
| 11 | Pearl V. Nelson | 28 | Wife | — | Minnesota |
| 12 | Marjorie A. Nelson | 6 | daughter | — | Minnesota |
| 13 | Barbara Nelson | 3 | daughter | — | Minnesota |
| 14 | Carol Jean Nelson | 1 | daughter | — | Minnesota |
| 15 | Emil Thompson | 54 | Head | Farmer | Minnesota |
| 16 | Clara A. Thompson | 52 | Wife | — | Minnesota |
| 17 | Gerald H. Thompson | 24 | son | — | Minnesota |
| 18 | G. Vernon Thompson | 19 | son | — | Minnesota |
| 19 | C. Viola Thompson | 19 | daughter | — | Minnesota |
| 20 | Ivan W. Wynn | 29 | Head | Farmer | North Dakota |
| 21 | Galena Wynn | 69 | Wife | — | Iowa |
| 22 | Joseph Vickerman | 17 | hired hand | — | Minnesota |
| 23 | Benne Thompson | 49 | Head | Laborer | Minnesota |
| 24 | Clara Thompson | 46 | Wife | — | Minnesota |
| 25 | Merle E. Thompson | 24 | son | — | Minnesota |
| 26 | Chester B. Thompson | 22 | son | — | Minnesota |
| 27 | Eleanor E. Thompson | 16 | daughter | — | Minnesota |
| 28 | Richard O. Thompson THIS PERSON | 15 | son | — | Minnesota |
| 29 | Robert G. Thompson | 13 | son | — | Minnesota |
| 30 | Carol J. Thompson | 10 | daughter | — | Minnesota |
| 31 | Donald B. Thompson | 5 | son | — | Minnesota |
| 32 | Edwin Pederson | 57 | Head | Farmer | Minnesota |
| 33 | Hannah C. Pederson | 45 | Wife | — | Minnesota |
| 34 | James H. Pederson | 20 | son | — | Minnesota |
| 35 | George H. Pederson | 18 | son | — | Minnesota |
| 36 | Cynthia G. Pederson | 17 | daughter | — | Minnesota |
| 37 | Alverde L. Pederson | 14 | son | — | Minnesota |
| 38 | Eilert B. Pederson | 13 | son | — | Minnesota |
| 39 | Vernon C. Pederson | 10 | son | — | Minnesota |
| 40 | Lola M. Pederson | 8 | 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)