AT
Alfred Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cavalier-County, North Dakota
Our Model Tree links this Alfred Thompson across the 1910, 1920, 1930 and 1940 US Censuses in Cavalier-County, North Dakota (XGBoost, ~Confirmed), with identified parents Thomas & Lena — first a head (b.~1892), then head of a 4-person household.
Age 48
b. ~1892
Male
Head
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cavalier-County, North Dakota |
| Surname | Thompson |
| Given Name | Alfred |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Sievert township |
| 1935 Residence (County) | Cavalier |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | North Dakota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Farmer |
| Township / Ward | Sievert Township |
| Est. Birth Year | ~1892 |
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 Alfred | Age | Birth yr |
|---|---|---|---|---|
| Tessa Thompson | Spouse | — | 44 | ~1896 |
| Donald Thompson | Son | — | 17 | ~1923 |
| Janette Thompson | Daughter | — | 3 | ~1937 |
| Alfred Thompson | Head | — | 48 | ~1892 |
Census Appearances
1910
Cavalier, North …
Son, age 17
Cavalier, North Dakota · implied b. ~1893 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Alfred S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Norway |
| Mother's Birthplace | Minnesota |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1920
Cavalier, North …
Head, age 27
Cavalier, North Dakota · implied b. ~1893 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Alfred S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Naturalization Status | Naturalized |
| 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 |
| Home Owned/Rented | R |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Cavalier, North …
Head, age 38
Cavalier, North Dakota · implied b. ~1892 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Alfred S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Age at First Marriage | 21 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Minnesota |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | VVVV E |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Cavalier-County, North …
Head, age 48
Cavalier-County, North Dakota · implied b. ~1892 — 4 household members
| Surname | Thompson |
| Given Name | Alfred |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Sievert township |
| 1935 Residence (County) | Cavalier |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | North Dakota |
| 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 Alfred Thompson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Thompson (~0.92 confidence) and mother Lena Thompson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Thompson
b. ~1869
Source father
● Household
· direct · ~0.92
Mother
Lena Thompson
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Alfred Thompson
Head · 1940 · age 48 · b. ~1892 · North Dakota
★ 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 — Cavalier-County, North Dakota
Open full size
1940 US Federal Census — Cavalier-County, North Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02998-00449)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Harry D. Cisneros | 49 | Head | Farmer | Ohio |
| 2 | Beatrice Cisneros | 40 | Wife | — | Illinois |
| 3 | Howard Cisneros | 20 | Son | Farmer | North Dakota |
| 4 | Morris Cisneros | 12 | Son | — | North Dakota |
| 5 | Palmer S. Thompson | 30 | Head | Farmer | North Dakota |
| 6 | Phillip Henry Thompson | 39 | Brother | Farmer | North Dakota |
| 7 | Pearl Davidson | 30 | Sister | — | North Dakota |
| 8 | Noel Davidson | 8 | Nephew | — | North Dakota |
| 9 | Math Heisler | 31 | Head | Farmer | North Dakota |
| 10 | Eva Heisler | 31 | Wife | — | Russia |
| 11 | Magdalen Heisler | 7 | Daughter | — | North Dakota |
| 12 | Edward Heisler | 8 | Son | — | North Dakota |
| 13 | Fred Mattern | 27 | Head | Farmer | North Dakota |
| 14 | Elenor Mattern | 25 | Wife | — | North Dakota |
| 15 | Alvina Mattern | 3 | Daughter | — | North Dakota |
| 16 | Adeline Mattern | 2 | Daughter | — | North Dakota |
| 17 | Alfred Thompson THIS PERSON | 48 | Head | Farmer | Minnesota |
| 18 | Tessa Thompson | 44 | Wife | — | Wisconsin |
| 19 | Donald Thompson | 17 | Son | Laborer | North Dakota |
| 20 | Janette Thompson | 3 | Daughter | — | North Dakota |
| 21 | Harold Jorgenson | 18 | Head | Farmer | North Dakota |
| 22 | Carl Jorgenson | 16 | Brother | — | North Dakota |
| 23 | Melvin Jorgenson | 14 | Brother | — | North Dakota |
| 24 | George Jorgenson | 12 | Brother | — | North Dakota |
| 25 | Helen Roberts | 22 | Housekeeper | — | North Dakota |
| 26 | Nick P. Roberts | 60 | Head | Farmer | Wisconsin |
| 27 | Eva Roberts | 63 | Wife | — | Wisconsin |
| 28 | Alice Roberts | 28 | Daughter | — | North Dakota |
| 29 | Andrew Hollinger | 51 | Head | Farmer | Pennsylvania |
| 30 | Faye Hollinger | 45 | Wife | — | Arkansas |
| 31 | Raymond Robert | 5 | Grandson | — | North Dakota |
| 32 | Frank Heisler | 35 | Head | Farmer | North Dakota |
| 33 | Frances Heisler | 32 | Wife | — | Canada-English |
| 34 | Joseph Heisler | 14 | Son | — | North Dakota |
| 35 | James Heisler | 12 | Son | — | North Dakota |
| 36 | Dorothy Heisler | 11 | Daughter | — | North Dakota |
| 37 | John Heisler | 9 | Son | — | North Dakota |
| 38 | Kenneth Heisler | 7 | Son | — | North Dakota |
| 39 | Kosmos Heisler | 5 | Son | — | North Dakota |
| 40 | Jo Ellen Heisler | 5 | Daughter | — | North Dakota |
Pedigree Summary
Alfred
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)