FJ
Floyd Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Millard-County, Utah
Our Model Tree links this Floyd Johnson across the 1930 and 1940 US Censuses in Millard-County, Utah (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 8-person household.
Age 15
b. ~1925
Male
Son
Born: Utah
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Millard-County, Utah |
| Surname | Johnson |
| Given Name | Floyd |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Sutherland Precinct |
| 1935 Residence (County) | Millard |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | 8 |
| 1935 Residence | Utah |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Township / Ward | Sutherland Precinct |
| Est. Birth Year | ~1925 |
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 Floyd | Age | Birth yr |
|---|---|---|---|---|
| Byron Johnson | Son | — | 6 | ~1934 |
| Janeanne Johnson | Daughter | — | 9 | ~1931 |
| Adam Johnson | Head | — | 39 | ~1901 |
| Floyd Johnson | Son | — | 15 | ~1925 |
| Lavon Johnson | Daughter | — | 11 | ~1929 |
| Ranilla Johnson | Spouse | — | 35 | ~1905 |
| Bonnie Johnson | Daughter | — | 1 | ~1939 |
| Don Johnson | Son | — | 13 | ~1927 |
Census Appearances
1930
Millard, Utah
Son, age 5
Millard, Utah · implied b. ~1925 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Floyd A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Utah |
| Mother's Birthplace | Utah |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1940
Millard-County, Utah
Son, age 15
Millard-County, Utah · implied b. ~1925 — 8 household members
| Surname | Johnson |
| Given Name | Floyd |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Sutherland Precinct |
| 1935 Residence (County) | Millard |
| Class of Worker | 0 |
| Highest Grade | 8 |
| 1935 Residence | Utah |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
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 Floyd Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Floyd Johnson
Son · 1940 · age 15 · b. ~1925 · Utah
★ You are viewing this record
Sibling
Lavon Johnson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bonnie Johnson
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Byron Johnson
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Janeanne Johnson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Don Johnson
Sibling · 1940 · age 13
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 — Millard-County, Utah
Open full size
1940 US Federal Census — Millard-County, Utah
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04214-00657)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Sherman Jones | 9 | son | — | Utah |
| 42 | Bryant Jones | 7 | son | — | Utah |
| 43 | Dewey Sanford | 41 | Head | Farmer | Utah |
| 44 | Delila Sanford | 39 | wife | — | Utah |
| 45 | Scott Sanford | 14 | son | — | Utah |
| 46 | Dorothy Sanford | 12 | daughter | — | Utah |
| 47 | Virginia Sanford | 11 | daughter | — | Utah |
| 48 | Adam F. Johnson | 39 | Head | Farmer | Utah |
| 49 | Ranilla Johnson | 35 | wife | — | Utah |
| 50 | Floyd Johnson THIS PERSON | 15 | son | — | Utah |
| 51 | Don Johnson | 13 | son | — | Utah |
| 52 | Lavon Johnson | 11 | daughter | — | Utah |
| 53 | Janeanne Johnson | 9 | daughter | — | Utah |
| 54 | Byron Johnson | 6 | son | — | Utah |
| 55 | Bonnie Johnson | 1 | daughter | — | Utah |
| 56 | Butler Henrie | 32 | Head | Farmer | Arizona |
| 57 | Mary Henrie | 28 | wife | — | Utah |
| 58 | Virginia Henrie | 7 | daughter | — | Utah |
| 59 | Mary Lou Henrie | 5 | daughter | — | Utah |
| 60 | Marion L. Henrie | 3 | son | — | Utah |
| 61 | Ann L. Henrie | 1 | daughter | — | Utah |
| 62 | George H. Corry | 41 | Head | Farmer | Utah |
| 63 | Helen H. Corry | 40 | wife | — | Utah |
| 64 | Donald H. Corry | 12 | son | — | Utah |
| 65 | Keith L. Corry | 10 | son | — | Utah |
| 66 | Carl J. Corry | 9 | son | — | Utah |
| 67 | Dorothy M. Corry | 6 | daughter | — | Utah |
| 68 | Maren Corry | 3 | daughter | — | Utah |
| 69 | Daryl Corry | 2 | daughter | — | Utah |
| 70 | Winslow R. Walker | 51 | Head | Farmer | Utah |
| 71 | Josephine Walker | 51 | wife | — | Florida |
| 72 | William L. Walker | 21 | son | — | Utah |
| 73 | W. Roger Walker | 19 | son | — | Utah |
| 74 | Grant Walker | 16 | son | — | Utah |
| 75 | Marylynn Walker | 13 | daughter | — | Utah |
| 76 | John Walker | 11 | son | — | Utah |
| 77 | Bryant B. Larsen | 46 | Head | Farmer | Utah |
| 78 | Clara W. Larsen | 42 | wife | — | Utah |
| 79 | Russell Larsen | 16 | son | — | Utah |
| 80 | Edith L. Larsen | 13 | daughter | — | 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)