RJ
Ronald Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Boone-County, Iowa
Our Model Tree links this Ronald Johnson across the 1930 and 1940 US Censuses in Boone-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 4-person household.
Age 17
b. ~1923
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Boone-County, Iowa |
| Surname | Johnson |
| Given Name | Ronald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Boone |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Beaver Twp |
| Est. Birth Year | ~1923 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ronald | Age | Birth yr |
|---|---|---|---|---|
| Thelma Johnson | Daughter | — | 14 | ~1926 |
| Ronald Johnson | Son | — | 17 | ~1923 |
| Richard Johnson | Head | — | 40 | ~1900 |
| Zetta Johnson | Spouse | — | 38 | ~1902 |
Census Appearances
1930
Boone, Iowa
Son, age 7
Boone, Iowa · implied b. ~1923 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ronald J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Boone-County, Iowa
Son, age 17
Boone-County, Iowa · implied b. ~1923 — 4 household members
| Surname | Johnson |
| Given Name | Ronald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Boone |
| Highest Grade | Hs 4 |
| 1935 Residence | Iowa |
| 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 17 · b. ~1923 · Iowa
★ You are viewing this record
Sibling
Thelma Johnson
Sibling · 1940 · age 14
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 — Boone-County, Iowa
Open full size
1940 US Federal Census — Boone-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01141-00041)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Pauline Lawler | 12 | Daughter | — | Iowa |
| 2 | Charles R. Herridge | 67 | Head | Farmer | England |
| 3 | Clara Herridge | 59 | Wife | — | Iowa |
| 4 | Zola Herridge | 37 | Daughter | — | Iowa |
| 5 | Norma Jean Herridge | 3 | Daughter | — | Iowa |
| 6 | Ronald Williams | 29 | Head | Farmer | Oklahoma |
| 7 | Erna Williams | 29 | Wife | — | Iowa |
| 8 | Lou Ann Williams | 7 | Daughter | — | Iowa |
| 9 | Ronald Lee Williams | 5 | Son | — | Iowa |
| 10 | Arnold Bloomquist | 35 | Head | Farmer | Iowa |
| 11 | Mable Bloomquist | 32 | Wife | — | Iowa |
| 12 | Charles Bloomquist | 11 | Son | — | Iowa |
| 13 | Jo Ann Bloomquist | 7 | Daughter | — | Iowa |
| 14 | Harold Bloomquist | 5 | Son | — | Iowa |
| 15 | Phyllis Bloomquist | 3 | Daughter | — | Iowa |
| 16 | Dennis Bloomquist | 0 | Son | — | Iowa |
| 17 | Francis Regan | 32 | Head | Farmer | Iowa |
| 18 | Nellie Regan | 47 | Sister | — | Iowa |
| 19 | Raymond Regan | 30 | Brother | Farmer | Iowa |
| 20 | Albert Kruse | 41 | Head | Farmer | Iowa |
| 21 | Elsie Kruse | 33 | Wife | — | Iowa |
| 22 | Donald Kruse | 9 | Son | — | Iowa |
| 23 | Roland Kruse | 8 | Son | — | Iowa |
| 24 | Harold Kruse | 2 | Son | — | Iowa |
| 25 | Richard Johnson | 40 | Head | Farmer | Iowa |
| 26 | Zetta Johnson | 38 | Wife | — | Iowa |
| 27 | Ronald Johnson THIS PERSON | 17 | Son | — | Iowa |
| 28 | Thelma Johnson | 14 | Daughter | — | Iowa |
| 29 | Charles Schell | 72 | Head | Farmer | Iowa |
| 30 | Frank H. Johnson | 66 | Head | Farmer | Illinois |
| 31 | Clara S. Johnson | 67 | Wife | — | Illinois |
| 32 | Otto W. Johnson | 37 | Son | Laborer | Iowa |
| 33 | Robert Johnson | 34 | Head | Farmer | Iowa |
| 34 | Mable Johnson | 28 | Wife | — | Iowa |
| 35 | Robert David Johnson | 3 | Son | — | Iowa |
| 36 | Charles Honneman | 68 | Head | Farmer | Iowa |
| 37 | Martha Honneman | 65 | Wife | — | Iowa |
| 38 | Harry Steinshouer | 55 | Head | Farmer | Iowa |
| 39 | Flossie Steinshouer | 50 | Wife | — | Iowa |
| 40 | Albert Steinshouer | 22 | Son | Laborer | 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)