JJ
Joyce Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Idaho
Our Model Tree links this Joyce Johnson across the 1930 and 1940 US Censuses in Jefferson-County, Idaho (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 8-person household.
Age 14
b. ~1926
Female
Daughter
Born: Idaho
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Idaho |
| Surname | Johnson |
| Given Name | Joyce L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Idaho |
| 1935 Residence (City) | Grant Ward Precinct |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
| Township / Ward | Grant Ward Precinct |
| Est. Birth Year | ~1926 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Joyce | Age | Birth yr |
|---|---|---|---|---|
| Gladys Johnson | Daughter | — | 12 | ~1928 |
| Robert Johnson | Son | — | 18 | ~1922 |
| Robert Johnson | Head | — | 43 | ~1897 |
| Carl Johnson | Son | — | 16 | ~1924 |
| Ruth Johnson | Spouse | — | 40 | ~1900 |
| Alair Johnson | Daughter | — | 9 | ~1931 |
| Nehl Johnson | Son | — | 4 | ~1936 |
| Joyce Johnson | Daughter | — | 14 | ~1926 |
Census Appearances
1930
Jefferson, Idaho
Daughter, age 4
Jefferson, Idaho · implied b. ~1926 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Joyce L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| 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 14
Jefferson-County, Idaho · implied b. ~1926 — 8 household members
| Surname | Johnson |
| Given Name | Joyce L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Idaho |
| 1935 Residence (City) | Grant Ward Precinct |
| 1935 Residence (County) | Jefferson |
| Highest Grade | 8 |
| 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 Joyce Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Joyce Johnson
Daughter · 1940 · age 14 · b. ~1926 · Idaho
★ You are viewing this record
Sibling
Nehl Johnson
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alair Johnson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Johnson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Johnson
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gladys Johnson
Sibling · 1940 · age 12
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-t0627-00747-00538)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Robert D. Mickey | 34 | Head | Farmer | Ireland |
| 42 | May Mickey | 29 | Wife | Farmer | India |
| 43 | Christ Frey | 45 | Head | Farmer | S. Dakota |
| 44 | Mathilda Frey | 43 | Wife | Farmer | Romania |
| 45 | Raymond Frey | 20 | Son | Laborer | Idaho |
| 46 | Emanuel Frey | 18 | Son | Laborer | Idaho |
| 47 | Monica Frey | 14 | Daughter | — | Idaho |
| 48 | Leonard Frey | 11 | Son | — | Idaho |
| 49 | Romana Frey | 10 | Daughter | — | Idaho |
| 50 | Arthur Frey | 6 | Son | — | Idaho |
| 51 | Seth Fife | 64 | Head | — | Utah |
| 52 | Mary Ellen Fife | 56 | Wife | Farmer | Utah |
| 53 | Johnita Fife | 20 | Daughter | House Keeping | Utah |
| 54 | Lee H. Martineau | 41 | Head | House Keeping | Idaho |
| 55 | Verna L. Martineau | 41 | Wife | Farmer | Kansas |
| 56 | Betty Jean Martineau | 18 | Daughter | — | Idaho |
| 57 | Jack D. Martineau | 16 | Son | — | Idaho |
| 58 | Don W. Martineau | 14 | Son | — | Idaho |
| 59 | Marjorie Lou Martineau | 12 | Daughter | — | Idaho |
| 60 | William Martineau | 10 | Son | — | Idaho |
| 61 | Stacey Blair | 27 | Hired man | Laborer | Colo. |
| 62 | Wayne Wilson | 28 | Head | Laborer | Idaho |
| 63 | Vendetta Wilson | 27 | Wife | — | Idaho |
| 64 | La Rae Wilson | 7 | Daughter | — | Idaho |
| 65 | Glendon Wilson | 4 | Son | — | Idaho |
| 66 | Afton Wilson | 3 | Daughter | — | Idaho |
| 67 | Lonny Wilson | 2 | Son | — | Idaho |
| 68 | Ronald Wilson | 0 | Son | — | Idaho |
| 69 | Robert H. Johnson | 43 | Head | Farmer | Idaho |
| 70 | Ruth Johnson | 40 | Wife | — | Utah |
| 71 | Robert B. Johnson | 18 | Son | — | Idaho |
| 72 | Carl D. Johnson | 16 | Son | — | Idaho |
| 73 | Joyce L. Johnson THIS PERSON | 14 | Daughter | — | Idaho |
| 74 | Gladys Johnson | 12 | Daughter | — | Idaho |
| 75 | Alair Johnson | 9 | Daughter | — | Idaho |
| 76 | Nehl Johnson | 4 | Son | — | Idaho |
| 77 | Brent L. Wahlquist | 23 | Head | Farmer | Utah |
| 78 | Irene A. Wahlquist | 23 | Wife | — | Idaho |
| 79 | Dale O. Wahlquist | 0 | Son | — | Idaho |
| 80 | William N. Johnson | 40 | Head | Farmer | Utah |
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)