JT
Joseph Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Polk-County, Minnesota
Our Model Tree links this Joseph Thompson across the 1920, 1930 and 1940 US Censuses in Polk-County, Minnesota (XGBoost, ~Confirmed), with identified parents Albert & Mildred — first a head (b.~1899), then head of a 4-person household.
Age 41
b. ~1899
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Minnesota |
| Surname | Thompson |
| Given Name | Joseph O. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Town of Sletten |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 72 |
| Income (1939) | 450 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Town Of Sletten |
| Est. Birth Year | ~1899 |
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 Joseph | Age | Birth yr |
|---|---|---|---|---|
| Joseph Thompson | Head | — | 41 | ~1899 |
| Elmer Larson | Other | — | 28 | ~1912 |
| A Thompson | Son | — | 8 | ~1932 |
| Emma Thompson | Spouse | — | 44 | ~1896 |
Census Appearances
1920
Polk, Minnesota
Son, age 21
Polk, Minnesota · implied b. ~1899 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Joseph |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Farm Laborer |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Minnesota
Son, age 31
Polk, Minnesota · implied b. ~1899 — 41 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Minnesota
Head, age 41
Polk-County, Minnesota · implied b. ~1899 — 4 household members
| Surname | Thompson |
| Given Name | Joseph O. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Town of Sletten |
| 1935 Residence (County) | Polk |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 72 |
| Income (1939) | 450 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Joseph Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Albert Thompson (~0.92 confidence) and mother Mildred Thompson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Albert Thompson
b. ~1855
Source father
● Household
· direct · ~0.92
Mother
Mildred Thompson
b. ~1869
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Joseph Thompson
Head · 1940 · age 41 · b. ~1899 · 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 — Polk-County, Minnesota
Open full size
1940 US Federal Census — Polk-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01949-01054)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Amalia Gunnarson | 44 | Wife | Housekeeper | Minnesota |
| 42 | Orvin S. Gunnarson | 10 | Son | — | Minnesota |
| 43 | Harriet O. Gunnarson | 6 | Daughter | — | Minnesota |
| 44 | Milford S. Gunnarson | 4 | Son | — | Minnesota |
| 45 | Tasten S. Skre | 76 | Father-in-law | Retired | Minnesota |
| 46 | Joseph O. Thompson THIS PERSON | 41 | Head | Farmer | Iowa |
| 47 | Emma C. Thompson | 44 | Wife | Housekeeper | Minnesota |
| 48 | A. Roger Thompson | 8 | Son | — | Minnesota |
| 49 | Elmer Larson | 28 | Hired man | Farm Worker | Minnesota |
| 50 | Henry Hagerness | 28 | Head | Farmer | Minnesota |
| 51 | Eveline Hagerness | 27 | Wife | Housekeeper | Minnesota |
| 52 | Andrew J. Hegstem | 68 | Head | Retired | Norway |
| 53 | Emma G. Hegstem | 60 | Wife | Housekeeper | Minnesota |
| 54 | Arnold S. Hegstem | 22 | Son | Farm Worker | Minnesota |
| 55 | Rhombin D. Hegstem | 20 | Son | Farm Worker | Minnesota |
| 56 | Ella E. Hegstem | 25 | Daughter | House Worker | Minnesota |
| 57 | Jens Krogstad | 48 | Head | Farmer | Minnesota |
| 58 | Julia Krogstad | 45 | Wife | Housekeeper | Minnesota |
| 59 | Blanchard C. Krogstad | 18 | Son | Farm Worker | Minnesota |
| 60 | Reuben S. Krogstad | 16 | Son | Farm Worker | Minnesota |
| 61 | Judith M. Krogstad | 14 | Daughter | Farm Worker | Minnesota |
| 62 | Evelyn M. Krogstad | 10 | Daughter | — | Minnesota |
| 63 | Olaf G. Grundyson | 44 | Head | Farmer | Minnesota |
| 64 | Ole G. Grundyson | 40 | Brother | Farmer & Farmwork | Minnesota |
| 65 | Torbjor Grundyson | 34 | Sister | Housekeeper | Minnesota |
| 66 | Eivind G. Moen | 33 | Boarder | Farm Worker | Norway |
| 67 | Gerhard O. Savatski | 42 | Head | Farmer | Minnesota |
| 68 | Evelyn G. Savatski | 24 | Wife | Housekeeper | Minnesota |
| 69 | David Gerald Savatski | 3 | Son | — | Minnesota |
| 70 | Gordon Lyle Savatski | 1 | Son | — | Minnesota |
| 71 | Marie Darlene Savatski | 0 | Daughter | — | Minnesota |
| 72 | Doris Isabella Gunning | 19 | Sister-in-law | House Worker | Minnesota |
| 73 | John G. Mortenson | 58 | Head | Farmer | Denmark |
| 74 | Norman T. Mortenson | 17 | Son | Mechanic | Minnesota |
| 75 | Elinore J. Mortenson | 17 | Daughter | House Worker | North Dakota |
| 76 | Irma L. Mortenson | 14 | Daughter | House Worker | Minnesota |
| 77 | Irene L. Mortenson | 13 | Daughter | House Worker | Minnesota |
| 78 | Doris V. Mortenson | 10 | Daughter | — | Minnesota |
| 79 | Deany Grundyson | 74 | Head | Retired | Minnesota |
| 80 | Thea C. Grundyson | 65 | Wife | Housekeeper | Minnesota |
Pedigree Summary
Joseph
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)