FT
Frank Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ada-County, Idaho
Our Model Tree links this Frank Thompson across the 1910, 1920, 1930 and 1940 US Censuses in Ada-County, Idaho (XGBoost, ~Confirmed), with identified parents William & Lafayette — first a head (b.~1908), then head of a 6-person household.
Age 32
b. ~1908
Male
Head
Born: Idaho
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Ada-County, Idaho |
| Surname | Thompson |
| Given Name | Frank E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Idaho |
| 1935 Residence (City) | Barber Elec. Precinct |
| 1935 Residence (County) | Ada |
| Additional Details | |
| Occupation | Truck driver |
| Industry | Wholesale gas |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1265 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
| Occupation | Truck Driver |
| Township / Ward | Barber Elec Precinct |
| Est. Birth Year | ~1908 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Joyce Thompson | Daughter | — | 7 | ~1933 |
| Frank Thompson | Head | — | 32 | ~1908 |
| Pete Lay | Other | — | 59 | ~1881 |
| Dora Rogers | Other | — | 75 | ~1865 |
| Jimmy Thompson | Son | — | 5 | ~1935 |
| Ena Thompson | Spouse | — | 30 | ~1910 |
Census Appearances
1910
Ada, Idaho
Son, age 2
Ada, Idaho · implied b. ~1908 — 20 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Idaho |
| Father's Birthplace | Idaho |
| Mother's Birthplace | Iowa |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
1920
Ada, Idaho
Son, age 12
Ada, Idaho · implied b. ~1908 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Idaho |
| Father's Birthplace | Idaho |
| Mother's Birthplace | Idaho |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
1930
Ada, Idaho
Head, age 22
Ada, Idaho · implied b. ~1908 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Frank L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Idaho |
| Age at First Marriage | 20 |
| Father's Birthplace | Idaho |
| Mother's Birthplace | Idaho |
| Occupation | Clerk |
| Industry | General Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 12 |
| Radio Set | R |
| Veteran | No |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
1940
Ada-County, Idaho
Head, age 32
Ada-County, Idaho · implied b. ~1908 — 6 household members
| Surname | Thompson |
| Given Name | Frank E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Idaho |
| 1935 Residence (City) | Barber Elec. Precinct |
| 1935 Residence (County) | Ada |
| Occupation | Truck driver |
| Industry | Wholesale gas |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1265 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
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 Frank Thompson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Thompson (~0.81 confidence) and father Lafayette Thompson (~0.92 confidence) and mother Emma Thompson (~0.92 confidence) and mother Kyra Thompson (~0.92 confidence). The pedigree spans 2 generations with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.89
Father
William Thompson
b. ~1821
Source father>father
● Household
· direct · ~0.81
Father
Lafayette Thompson
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Emma Thompson
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Kyra Thompson
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Frank Thompson
Head · 1940 · age 32 · b. ~1908 · Idaho
★ 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 — Ada-County, Idaho
Open full size
1940 US Federal Census — Ada-County, Idaho
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00736-00062)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank E. Thompson THIS PERSON | 32 | Head | Truck Driver | Idaho |
| 2 | Ena Thompson | 30 | Wife | — | Idaho |
| 3 | Joyce Thompson | 7 | Daughter | — | Idaho |
| 4 | Jimmy Lawrence Thompson | 5 | Son | — | Idaho |
| 5 | Pete Lay | 59 | Father | Farmer | Idaho |
| 6 | Dora Rogers | 75 | Mother | Laundry | Idaho |
| 7 | John A. Wilder | 37 | Head | Farmer | Nebraska |
| 8 | Celestine Wilder | 32 | Wife | — | Nebraska |
| 9 | Ralph Wilder | 11 | Son | — | Nebraska |
| 10 | Ray Wilder | 8 | Son | — | Nebraska |
| 11 | John Jr. Wilder | 5 | Son | — | Nebraska |
| 12 | Donald Wilder | 3 | Son | — | Nebraska |
| 13 | Katherine Ann Wilder | 2 | Daughter | — | Idaho |
| 14 | Adolph Behler | 61 | Head | Dairy Farmer | Switzerland |
| 15 | Berton Emilio | 27 | Son in law | Teacher | Idaho |
| 16 | Evelyn Emilio | 18 | Daughter | — | Idaho |
| 17 | Alexander Gross | 22 | Hired man | Farm Labor | Montana |
| 18 | William S. Thompson | 79 | Head | Farmer | Utah |
| 19 | Cordelia S. Thompson | 63 | Wife | Housekeeper | Penn. |
| 20 | John E. Hammer | 57 | Head | Farmer | Idaho |
| 21 | Emily M. Hammer | 46 | Wife | — | Ark. |
| 22 | Catherine Hammer | 21 | Daughter | — | Idaho |
| 23 | Frances Hammer | 5 | Daughter | — | Idaho |
| 24 | Jessie Sproul | 26 | Mother in law | — | Canada |
| 25 | William Thompson | 46 | Head | Farmer | Utah |
| 26 | Virginia Thompson | 38 | Wife | — | Utah |
| 27 | Delrell Thompson | 19 | Son | Newsworker | Idaho |
| 28 | Harold Thompson | 17 | Son | Newsworker | Idaho |
| 29 | Gerald Thompson | 14 | Son | — | Idaho |
| 30 | Ira Thompson | 12 | Daughter | — | Idaho |
| 31 | Wanda Thompson | 9 | Daughter | — | Idaho |
| 32 | Vanda Thompson | 8 | Daughter | — | Idaho |
| 33 | Iris Thompson | 6 | Daughter | — | Idaho |
| 34 | Richard Thompson | 4 | Son | — | Calif. |
| 35 | Head Santa Iriono | None | M | Farm | Al |
| 36 | Sadris Santa Iriono | 23 | Son | Sheep Herder | Idaho |
| 37 | Frank Santa Iriono | 18 | Son | Farmer | Idaho |
| 38 | Marie Santa Iriono | 16 | Daughter | — | Idaho |
| 39 | Philip Santa Iriono | 12 | Son | — | Idaho |
| 40 | Lester M. Brooks | 65 | Head | Farmer | Texas |
Pedigree Summary
Frank
Gen 1 · 3 parents
~0.92
Gen 2 · 1 grandparents
~0.81
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)