AT
Andrew Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hamilton-County, Iowa
Our Model Tree links this Andrew Thompson across the 1900, 1910, 1920, 1930 and 1940 US Censuses in Hamilton-County, Iowa (XGBoost, ~Confirmed), with identified parents Andrew & Thomas — first a head (b.~1882), then head of a 4-person household.
Age 58
b. ~1882
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hamilton-County, Iowa |
| Surname | Thompson |
| Given Name | Andrew I. |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Ellsworth Town |
| 1935 Residence (County) | Hamilton |
| Additional Details | |
| Occupation | tiling |
| Industry | drainage |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 200 |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Tiling |
| Township / Ward | Ellsworth Town |
| Est. Birth Year | ~1882 |
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 Andrew | Age | Birth yr |
|---|---|---|---|---|
| Velva Thompson | Daughter | — | 21 | ~1919 |
| Tida Thompson | Spouse | — | 54 | ~1886 |
| Andrew Thompson | Head | — | 58 | ~1882 |
| Dale Thompson | Son | — | 17 | ~1923 |
Census Appearances
1900
Hamilton, Iowa
Son, age 19
Hamilton, Iowa · implied b. ~1881 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Andrew |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Iowa |
| Birth Month | Aug |
| Birth Year | 1881 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Farm Laborer |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1910
Hamilton, Iowa
Son, age 28
Hamilton, Iowa · implied b. ~1882 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Andrew T. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Miller |
| Industry | Flour |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Hamilton, Iowa
Head, age 37
Hamilton, Iowa · implied b. ~1883 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Andrew T. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Hamilton, Iowa
Head, age 48
Hamilton, Iowa · implied b. ~1882 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Andrew |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 32 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Farming |
| Industry | Gen Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 12 |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Hamilton-County, Iowa
Head, age 58
Hamilton-County, Iowa · implied b. ~1882 — 4 household members
| Surname | Thompson |
| Given Name | Andrew I. |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Ellsworth Town |
| 1935 Residence (County) | Hamilton |
| Occupation | tiling |
| Industry | drainage |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 200 |
| Highest Grade | 6 |
| 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 Andrew Thompson across 5 US Census years (1900, 1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Andrew Thompson (~0.92 confidence) and father Thomas Thompson (~0.92 confidence) and mother Anna Thompson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Andrew Thompson
b. ~1850
Source father
● Household
· direct · ~0.92
Father
Thomas Thompson
b. ~1852
Source father
● Household
· direct · ~0.92
Mother
Anna Thompson
b. ~1862
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Andrew Thompson
Head · 1940 · age 58 · b. ~1882 · Iowa
★ 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 — Hamilton-County, Iowa
Open full size
1940 US Federal Census — Hamilton-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01164-00391)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Marilyn Sogard | 12 | daughter | — | Iowa |
| 2 | Kathryn Sogard | 10 | daughter | — | Iowa |
| 3 | Donald Sogard | 9 | son | — | Iowa |
| 4 | Dean Sogard | 8 | son | — | Iowa |
| 5 | Gail Sogard | 6 | son | — | Iowa |
| 6 | Margery Sogard | 4 | daughter | — | Iowa |
| 7 | Allyn Sogard | 3 | son | — | Iowa |
| 8 | Ramon Sogard | 1 | son | — | Iowa |
| 9 | Gary Sogard | 0 | son | — | Iowa |
| 10 | Ray Skartwedt | 52 | head | Buyer | Illinois |
| 11 | Sanda Skartwedt | 47 | wife | — | Iowa |
| 12 | Raymond Skartwedt | 23 | son | Buyer | Iowa |
| 13 | Arlene Skartwedt | 19 | daughter | Helper | Iowa |
| 14 | Norma Skartwedt | 6 | daughter | — | Iowa |
| 15 | Carl Naglestad | 53 | head | Minister | Iowa |
| 16 | Helene Naglestad | 52 | wife | — | Iowa |
| 17 | Joan Naglestad | 9 | daughter | — | Minnesota |
| 18 | Alberto Readout | 77 | head | — | Illinois |
| 19 | Jane Readout | 79 | wife | — | Iowa |
| 20 | Merle Shade | 46 | head | Painter | Iowa |
| 21 | Selma Shade | 45 | wife | — | Iowa |
| 22 | Donald Shade | 24 | son | Painter | Iowa |
| 23 | Anna L. Sogard | 71 | mother in law | — | Illinois |
| 24 | Silas Sogard | 46 | brother in law | Laborer | Iowa |
| 25 | Bradley Hersey | 44 | lodger | Laborer | Kentucky |
| 26 | Louisa Chadwick | 75 | head | — | Illinois |
| 27 | Roland Baumann | 27 | head | Manager | Iowa |
| 28 | Vera Baumann | 21 | wife | — | Iowa |
| 29 | Loy Baumann | 2 | son | — | Iowa |
| 30 | Anna Brown | 62 | head | — | Indiana |
| 31 | Lavonne Brown | 18 | daughter | — | Iowa |
| 32 | Francis Reisetter | 33 | head | Trucker | Iowa |
| 33 | Myrna Reisetter | 23 | wife | — | Iowa |
| 34 | Sidney Neuenschwander | 51 | head | Farm Laborer | Iowa |
| 35 | Stella Neuenschwander | 50 | wife | Night Watchman | Iowa |
| 36 | Kathleen Neuenschwander | 26 | daughter | — | South Dakota |
| 37 | Andrew I. Thompson THIS PERSON | 58 | head | Tiling | Iowa |
| 38 | Tida Thompson | 54 | wife | — | Iowa |
| 39 | Velva Thompson | 21 | daughter | — | Iowa |
| 40 | Dale Thompson | 17 | son | — | Iowa |
Pedigree Summary
Andrew
Gen 1 · 3 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)