RT
Ralph Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lewis-County, Idaho
Our Model Tree links this Ralph Thomas across the 1920, 1930 and 1940 US Censuses in Lewis-County, Idaho (XGBoost, ~Confirmed) — first a head (b.~1884), then head of a 5-person household.
Age 56
b. ~1884
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lewis-County, Idaho |
| Surname | Thomas |
| Given Name | Ralph O. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | East Nezperce Precinct |
| 1935 Residence (County) | Lewis |
| Additional Details | |
| Occupation | farming |
| Industry | farmer |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farming |
| Township / Ward | East Nezperce Precinct |
| Est. Birth Year | ~1884 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ralph | Age | Birth yr |
|---|---|---|---|---|
| Cynthia Thomas | Spouse | — | 51 | ~1889 |
| Roger Thomas | Son | — | 26 | ~1914 |
| Ralph Thomas | Head | — | 56 | ~1884 |
| Doris Thomas | Daughter | — | 15 | ~1925 |
| Ryden Thomas | Son | — | 30 | ~1910 |
Census Appearances
1920
Lewis, Idaho
Head, age 36
Lewis, Idaho · implied b. ~1884 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ralph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Ohio |
| Occupation | Repairman |
| Industry | Garage |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Lewis, Idaho
Head, age 46
Lewis, Idaho · implied b. ~1884 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ralph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 23 |
| Father's Birthplace | Penn |
| Mother's Birthplace | Ohio |
| Occupation | Farmer |
| Industry | Farm (General) |
| Class of Worker | VVV O |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Lewis-County, Idaho
Head, age 56
Lewis-County, Idaho · implied b. ~1884 — 5 household members
| Surname | Thomas |
| Given Name | Ralph O. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | East Nezperce Precinct |
| 1935 Residence (County) | Lewis |
| Occupation | farming |
| Industry | farmer |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| 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 Ralph Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Ralph Thomas
Head · 1940 · age 56 · b. ~1884 · 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 — Lewis-County, Idaho
Open full size
1940 US Federal Census — Lewis-County, Idaho
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00750-00320)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Firman S. Harris | 66 | Head | Farming | Ohio |
| 42 | Alora Harris | 65 | Wife | House Wife | Ohio |
| 43 | James V. Stanton | 73 | Head | Farming | Illinois |
| 44 | Hattie Stanton | 60 | Wife | House Wife | Iowa |
| 45 | Lofe S. Harrington | 67 | Head | Farming | Minnesota |
| 46 | Beulah D. Price | 45 | House Keeper | House Keeper | Oregon |
| 47 | Minnie Price | 19 | House Keeper | House Keeper | Washington |
| 48 | Geneve Price | 16 | Lodger | — | Idaho |
| 49 | Mary Price | 13 | Lodger | — | Idaho |
| 50 | Betty Price | 10 | Lodger | — | Idaho |
| 51 | Charles Price | 8 | Lodger | — | Idaho |
| 52 | Alice Price | 6 | Lodger | — | Idaho |
| 53 | Ralph O. Thomas THIS PERSON | 56 | Head | Farming | Iowa |
| 54 | Cynthia Thomas | 51 | Wife | House Wife | Iowa |
| 55 | Ryden Thomas | 30 | Son | Laborer | Idaho |
| 56 | Roger Thomas | 26 | Son | Laborer | Idaho |
| 57 | Doris Thomas | 15 | Daughter | — | Idaho |
| 58 | Lawrence S. Gerber | 36 | Head | Farming | Idaho |
| 59 | Celia Gerber | 34 | Wife | House Wife | Idaho |
| 60 | Darrell Gerber | 5 | Son | — | Idaho |
| 61 | M. J. Harris | 82 | Father-in-law | Retired | Kansas |
| 62 | George O. Rowe | 60 | Head | Farming | North Dakota |
| 63 | Laura Ann Rowe | 58 | Wife | House Wife | Missouri |
| 64 | Norman O. Stillman | 42 | Head | Farming | Idaho |
| 65 | Margaret Stillman | 31 | Wife | House Wife | Kansas |
| 66 | John Stillman | 15 | Son | — | Idaho |
| 67 | Goldie Stillman | 8 | Daughter | — | Idaho |
| 68 | Ray O. Hendrix | 42 | Head | Farming | Ohio |
| 69 | Fay Hendrix | 39 | Wife | House Wife | Iowa |
| 70 | Marjorie Hendrix | 11 | Daughter | — | Idaho |
| 71 | Lorraine Hendrix | 7 | Son | — | Washington |
| 72 | Bettie Hendrix | 3 | Daughter | — | Idaho |
| 73 | C. W. O. Tupper | 48 | Head | Farming | Idaho |
| 74 | Gertrude Tupper | 48 | Wife | House Wife | Canada |
| 75 | William Tupper | 12 | Son | — | Oregon |
| 76 | Mary Tupper | 10 | Daughter | — | Idaho |
| 77 | Barbara Tupper | 9 | Daughter | — | Idaho |
| 78 | Robert Tupper | 8 | Son | — | Idaho |
| 79 | Edward Tupper | 6 | Son | — | Idaho |
| 80 | Arthur Tupper | 5 | Son | — | Idaho |
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)