RJ
Ronald Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Buena-Vista-County, Iowa
Our Model Tree links this Ronald Johnson across the 1930 and 1940 US Censuses in Buena-Vista-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 7-person household.
Age 13
b. ~1927
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Buena-Vista-County, Iowa |
| Surname | Johnson |
| Given Name | Ronald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Elk Township |
| 1935 Residence (County) | Buena Vista |
| Additional Details | |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Elk Township |
| Est. Birth Year | ~1927 |
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 Ronald | Age | Birth yr |
|---|---|---|---|---|
| Veryl Johnson | Spouse | — | 40 | ~1900 |
| Leslie Johnson | Head | — | 42 | ~1898 |
| Janeen Johnson | Daughter | — | 5 | ~1935 |
| Vincent Anderson | Other | — | 18 | ~1922 |
| Kathryn Johnson | Daughter | — | 7 | ~1933 |
| Ronald Johnson | Son | — | 13 | ~1927 |
| Carroll Johnson | Son | — | 11 | ~1929 |
Census Appearances
1930
Buena Vista, …
Son, age 2
Buena Vista, Iowa · implied b. ~1928 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ronald D |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Buena-Vista-County, Iowa
Son, age 13
Buena-Vista-County, Iowa · implied b. ~1927 — 7 household members
| Surname | Johnson |
| Given Name | Ronald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Elk Township |
| 1935 Residence (County) | Buena Vista |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| 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 Ronald Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ronald Johnson
Son · 1940 · age 13 · b. ~1927 · Iowa
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Sibling
Carroll Johnson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Janeen Johnson
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kathryn Johnson
Sibling · 1940 · age 7
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 — Buena-Vista-County, Iowa
Open full size
1940 US Federal Census — Buena-Vista-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01143-00078)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Albin Johnson | 50 | Head | Farmer | Iowa |
| 42 | Nellie M. Johnson | 47 | Sister | — | Iowa |
| 43 | Ross Johnson | 55 | Head | Farmer | Iowa |
| 44 | Winnie Johnson | 49 | Wife | — | Iowa |
| 45 | Glen Johnson | 28 | Son | Farm Laborer | Iowa |
| 46 | Doris Johnson | 19 | Daughter | — | Iowa |
| 47 | Leslie F. Johnson | 42 | Head | Farmer | Iowa |
| 48 | Veryl Johnson | 40 | Wife | — | Iowa |
| 49 | Ronald Johnson THIS PERSON | 13 | Son | — | Iowa |
| 50 | Carroll Johnson | 11 | Son | — | Iowa |
| 51 | Kathryn Johnson | 7 | Daughter | — | Iowa |
| 52 | Janeen Johnson | 5 | Daughter | — | Iowa |
| 53 | Vincent Anderson | 18 | Hired man | Farm Laborer | Iowa |
| 54 | Raymond Faust | 33 | Head | Farmer | Iowa |
| 55 | Nettie Faust | 36 | Wife | — | Iowa |
| 56 | Lynn Faust | 8 | Son | — | Iowa |
| 57 | Delores Faust | 6 | Daughter | — | Iowa |
| 58 | Janice N. Faust | 4 | Daughter | — | Iowa |
| 59 | Fred Baap | 37 | Head | Farm Laborer | Iowa |
| 60 | Esther Baap | 33 | Wife | — | Iowa |
| 61 | Phyllis Jean Baap | 10 | Daughter | — | Iowa |
| 62 | Oscar, W. Larsen | 33 | Head | Farmer | North Dakota |
| 63 | Fleeta Larsen | 35 | Wife | — | Illinois |
| 64 | Dorothy Ann Larsen | 7 | Daughter | — | Iowa |
| 65 | Lois Adel Larsen | 6 | Daughter | — | Iowa |
| 66 | Alvin Lester Larsen | 4 | Son | — | Iowa |
| 67 | Dale Francis Larsen | 1 | Son | — | Iowa |
| 68 | Louis Olsen | 47 | Head | Farmer | Iowa |
| 69 | Rachael Olsen | 38 | Wife | — | Iowa |
| 70 | Virgil Clifford Olsen | 17 | Son | — | Iowa |
| 71 | Betty Lou Olsen | 8 | Daughter | — | Iowa |
| 72 | Clarence T. Horsman | 46 | Head | Farmer | Illinois |
| 73 | Lucille Horsman | 38 | Wife | — | Iowa |
| 74 | Clarence Jr. Horsman | 16 | Son | — | Iowa |
| 75 | Elton Loren Horsman | 12 | Son | — | Iowa |
| 76 | William Lee Horsman | 10 | Son | — | Iowa |
| 77 | Myron Smith | 47 | Head | Farm Laborer | Iowa |
| 78 | Frances Smith | 44 | Wife | — | Iowa |
| 79 | Delores Jean Smith | 4 | Daughter | — | Iowa |
| 80 | Myona Faye Smith | 2 | Daughter | — | Iowa |
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)