MS
Melvin Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Latah-County, Idaho
Our Model Tree links this Melvin Smith across the 1920, 1930 and 1940 US Censuses in Latah-County, Idaho (XGBoost, ~Confirmed), with identified parents John & John — first a head (b.~1914), then head of a 3-person household.
Age 26
b. ~1914
Male
Head
Born: Idaho
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Latah-County, Idaho |
| Surname | Smith |
| Given Name | Melvin |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Idaho |
| 1935 Residence (City) | Troy Precinct |
| 1935 Residence (County) | Latah |
| Additional Details | |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
| Occupation | Farmer |
| Township / Ward | Troy Precinct |
| Est. Birth Year | ~1914 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Melvin | Age | Birth yr |
|---|---|---|---|---|
| Linda Smith | Daughter | — | 2 | ~1938 |
| Melvin Smith | Head | — | 26 | ~1914 |
| Margret Smith | Spouse | — | 26 | ~1914 |
Census Appearances
1920
Latah, Idaho
Son, age 5
Latah, Idaho · implied b. ~1915 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Melvin |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Idaho |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
1930
Latah, Idaho
Son, age 16
Latah, Idaho · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Melvin |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Idaho |
| Year of Immigration | 1889 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Sweden |
| Occupation | Yes |
| Can Read/Write | Yes |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
1940
Latah-County, Idaho
Head, age 26
Latah-County, Idaho · implied b. ~1914 — 3 household members
| Surname | Smith |
| Given Name | Melvin |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Idaho |
| 1935 Residence (City) | Troy Precinct |
| 1935 Residence (County) | Latah |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 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 Melvin Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Smith (~0.92 confidence) and father John Smith (~0.92 confidence) and mother Ida Smith (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Smith
b. ~1877
Source father
● Household
· direct · ~0.92
Father
John Smith
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Ida Smith
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Melvin Smith
Head · 1940 · age 26 · b. ~1914 · 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 — Latah-County, Idaho
Open full size
1940 US Federal Census — Latah-County, Idaho
Page Contents
33 people indexed on this census page (nara:1940:m-t0627-00749-00607)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Annie Gronlund | 52 | wife | Housework | Wisconsin |
| 42 | Bernice Gronlund | 21 | daughter | Housework | Idaho |
| 43 | Eleanor Gronlund | 17 | daughter | — | Idaho |
| 44 | David Gronlund | 16 | son | — | Idaho |
| 45 | Floyd Gronlund | 12 | son | — | Idaho |
| 46 | May Gronlund | 11 | daughter | — | Idaho |
| 47 | Dan Smith | 27 | head | Farmer | Idaho |
| 48 | Jeanette Smith | 24 | wife | — | Idaho |
| 49 | Willie Smith | 4 | son | — | Idaho |
| 50 | Wayne Smith | 2 | son | — | Idaho |
| 58 | Herman Rhuberg | 47 | head | Farmer | Idaho |
| 59 | Hilda Rhuberg | 47 | wife | — | North Dakota |
| 60 | Ivor Halseth | 59 | head | Farmer | Norway |
| 61 | Anna Halseth | 53 | wife | — | Idaho |
| 62 | Melvin Halseth | 21 | son | Laborer | Idaho |
| 63 | Gladys Halseth | 19 | daughter | — | Idaho |
| 64 | Ella Halseth | 15 | daughter | — | Idaho |
| 65 | Melvin Smith THIS PERSON | 26 | head | Farmer | Idaho |
| 66 | Margret Smith | 26 | wife | — | Idaho |
| 67 | Linda Smith | 2 | daughter | — | Idaho |
| 68 | Rudolph Smith | 31 | head | Farmer | Idaho |
| 69 | Hannah Smith | 28 | wife | — | Idaho |
| 70 | Robert Smith | 9 | son | — | Idaho |
| 71 | Jean Smith | 3 | daughter | — | Idaho |
| 72 | Miller Smith | 36 | head | Farmer | Idaho |
| 73 | Elma Smith | 35 | wife | — | Idaho |
| 74 | Stanley Smith | 12 | son | — | Idaho |
| 75 | Paul Smith | 10 | son | — | Idaho |
| 76 | Bernajean Smith | 7 | daughter | — | Idaho |
| 77 | Paul Rudeen | 53 | head | Farmer | Minnesota |
| 78 | Olga Rudeen | 43 | wife | — | Idaho |
| 79 | Elmer Johnson | 42 | head | Farmer | Idaho |
| 80 | Lawrence Johnson | 80 | father | Farmer | Sweden |
Pedigree Summary
Melvin
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)