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Juanita Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Idaho
Our Model Tree links this Juanita Smith across the 1930 and 1940 US Censuses in Jefferson-County, Idaho (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 7-person household.
Age 16
b. ~1924
Female
Daughter
Born: Idaho
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Idaho |
| Surname | Smith |
| Given Name | Juanita Louise |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Idaho |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | H 10 |
| 1935 Residence | Idaho |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
| Township / Ward | 4 South |
| Est. Birth Year | ~1924 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Juanita | Age | Birth yr |
|---|---|---|---|---|
| Katie Smith | Spouse | — | 36 | ~1904 |
| Fred Smith | Head | — | 35 | ~1905 |
| Don Smith | Daughter | — | 3 | ~1937 |
| Iona Smith | Daughter | — | 6 | ~1934 |
| Lowell Smith | Son | — | 18 | ~1922 |
| Seth Smith | Son | — | 8 | ~1932 |
| Juanita Smith | Daughter | — | 16 | ~1924 |
Census Appearances
1930
Jefferson, Idaho
Daughter, age 6
Jefferson, Idaho · implied b. ~1924 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smithies |
| Given Name | Juanita L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Idaho |
| Father's Birthplace | Utah |
| Mother's Birthplace | Utah |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
1940
Jefferson-County, Idaho
Daughter, age 16
Jefferson-County, Idaho · implied b. ~1924 — 7 household members
| Surname | Smith |
| Given Name | Juanita Louise |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Idaho |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Jefferson |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | H 10 |
| 1935 Residence | Idaho |
| 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 Juanita Smith across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Juanita Smith
Daughter · 1940 · age 16 · b. ~1924 · Idaho
★ You are viewing this record
Sibling
Seth Smith
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Iona Smith
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lowell Smith
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Don Smith
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Jefferson-County, Idaho
Open full size
1940 US Federal Census — Jefferson-County, Idaho
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00747-00603)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lydia Kopp | 32 | Wife | Housewife | Idaho |
| 42 | Sally Kopp | 14 | Daughter | — | Idaho |
| 43 | Marlene Kopp | 13 | Daughter | — | Idaho |
| 44 | Joyce La Rue Kopp | 8 | Daughter | — | Idaho |
| 45 | Anita Jean Kopp | 6 | Daughter | — | Idaho |
| 46 | John R. Morgan | 60 | Head | Caretaker | Missouri |
| 47 | Chelsea Morgan | 19 | Son | — | Utah |
| 48 | Zella Morgan | 40 | Head | Laborer | Utah |
| 49 | Mary Morgan | 33 | Wife | Carpenter | Idaho |
| 50 | Richie Morgan | 13 | Daughter | — | Idaho |
| 51 | Raylin Morgan | 10 | Son | — | Idaho |
| 52 | Marcella Morgan | 8 | Daughter | — | Idaho |
| 53 | Dean Morgan | 5 | Son | — | Idaho |
| 54 | Vaughn Morgan | 0 | Son | — | Idaho |
| 55 | Earl Gardner | 31 | Head | Caretaker | Utah |
| 56 | Irene Gardner | 30 | Wife | — | Utah |
| 57 | Joyce Joyce Gardner | 11 | Daughter | — | Idaho |
| 58 | James Gardner | 9 | Son | — | Idaho |
| 59 | Norman Kopp | 23 | Head | — | Idaho |
| 60 | Alta Kopp | 18 | Wife | — | Idaho |
| 61 | George Lewis Miller | 66 | Head | Farmer | Utah |
| 62 | Fanny Alma Miller | 61 | Wife | — | Utah |
| 63 | Fred J. Smith | 35 | Head | Farmer | Utah |
| 64 | Katie Ellen Smith | 36 | Wife | — | Utah |
| 65 | Seth Thurman Smith | 8 | Son | — | Idaho |
| 66 | Iona Francis Smith | 6 | Daughter | — | Idaho |
| 67 | Don Elizabeth Smith | 3 | Daughter | — | Idaho |
| 68 | Lowell Samuel Smith | 18 | Son | Laborer | Idaho |
| 69 | Juanita Louise Smith THIS PERSON | 16 | Daughter | — | Idaho |
| 70 | Francis S. Massengale | 56 | Head | Farmer | South Dakota |
| 71 | Sadie Massengale | 53 | Wife | — | Utah |
| 72 | Dean Massengale | 15 | Son | — | Idaho |
| 73 | Ruth Massengale | 5 | Daughter | — | Idaho |
| 74 | Frederick Massengale | 1 | Son | — | Idaho |
| 75 | Geo P. Ting | 84 | Head | — | Utah |
| 76 | Mary Ting | 75 | Wife | — | England |
| 77 | Bertha Rachel Ting | 31 | Daughter | — | Utah |
| 78 | A. Wilford | 35 | Head | Farmer | Utah |
| 79 | Clara Wilford | 25 | Wife | — | Idaho |
| 80 | Victor M. Jones | 37 | Head | Farmer | 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)