RJ
Ronald Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Henry-County, Iowa
Our Model Tree links this Ronald Johnson across the 1930 and 1940 US Censuses in Henry-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 6-person household.
Age 11
b. ~1929
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Henry-County, Iowa |
| Surname | Johnson |
| Given Name | Ronald E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Wayne Township |
| 1935 Residence (County) | Henry |
| Additional Details | |
| Highest Grade | G 6 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Wayne Township |
| Est. Birth Year | ~1929 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ronald | Age | Birth yr |
|---|---|---|---|---|
| Mary Johnson | Daughter | — | 9 | ~1931 |
| Verna Johnson | Spouse | — | 40 | ~1900 |
| Carl Johnson | Head | — | 39 | ~1901 |
| Ronald Johnson | Son | — | 11 | ~1929 |
| James Johnson | Son | — | 5 | ~1935 |
| Carla Johnson | Daughter | — | 7 | ~1933 |
Census Appearances
1930
Henry, Iowa
Son, age 1
Henry, Iowa · implied b. ~1929 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ronald E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Henry-County, Iowa
Son, age 11
Henry-County, Iowa · implied b. ~1929 — 6 household members
| Surname | Johnson |
| Given Name | Ronald E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Wayne Township |
| 1935 Residence (County) | Henry |
| Highest Grade | G 6 |
| 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 11 · b. ~1929 · Iowa
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Sibling
Mary Johnson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carla Johnson
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Johnson
Sibling · 1940 · age 5
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 — Henry-County, Iowa
Open full size
1940 US Federal Census — Henry-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01166-01224)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Carl H. Johnson | 39 | Head | Farmer | Iowa |
| 2 | Verna E. Johnson | 40 | Wife | H | Iowa |
| 3 | Ronald E. Johnson THIS PERSON | 11 | Son | — | Iowa |
| 4 | Mary Elaine Johnson | 9 | Daughter | — | Iowa |
| 5 | Carla Jean Johnson | 7 | Daughter | — | Iowa |
| 6 | James A. Johnson | 5 | Son | — | Iowa |
| 7 | E. C. Wyse | 57 | Head | Farmer | Iowa |
| 8 | Hattie Wyse | 58 | Wife | H | Iowa |
| 9 | Robert Damont | 17 | Nephew | Farm Labor | Missouri |
| 10 | Wade B. Huffman | 35 | Head | Farmer | Iowa |
| 11 | Mabel Huffman | 37 | Wife | H | Iowa |
| 12 | George Joel Huffman | 86 | Grandfather | U | Canada |
| 13 | Paul O. Mast | 48 | Head | Farmer | Iowa |
| 14 | Mildred Mast | 47 | Wife | H | Iowa |
| 15 | Pauline M. Mast | 20 | Daughter | Beautician | Iowa |
| 16 | Johnney Mast | 14 | Son | — | Iowa |
| 17 | C. A. Storf | 39 | Head | Farmer | Iowa |
| 18 | Helen Storf | 37 | Wife | H | Iowa |
| 19 | Jacklyn Ann Storf | 15 | Daughter | — | Iowa |
| 20 | Geo. C. Spangler | 78 | Head | Farmer | Iowa |
| 21 | Martha Spangler | 74 | Wife | H | Iowa |
| 22 | W. B. Hammetson | 34 | Head | Farmer | Iowa |
| 23 | Ethel V. Hammetson | 29 | Wife | H | Iowa |
| 24 | Everett W. Hammetson | 11 | Son | — | Iowa |
| 25 | Donna J. Hammetson | 9 | Daughter | — | Iowa |
| 26 | Oscar D. Miller | 28 | Head | Farmer | Ohio |
| 27 | Lenore Miller | 29 | Wife | H | Iowa |
| 28 | Jane Marby Miller | 4 | Daughter | — | Iowa |
| 29 | James Edward Miller | 0 | Son | — | Iowa |
| 30 | Jesse O. Rich | 48 | Head | Farmer | Iowa |
| 31 | Phebe Ann Rich | 54 | Wife | H | Iowa |
| 32 | Charles A. Rich | 20 | Son | Secretary | Iowa |
| 33 | Evelyn Rich | 18 | Daughter | — | Iowa |
| 34 | Robert Rich | 14 | Son | — | Iowa |
| 35 | Betty Rich | 12 | Daughter | — | Iowa |
| 36 | Henry Reachly | 35 | Head | Carpenter | Iowa |
| 37 | Mabel O. Reachly | 32 | Wife | H | Iowa |
| 38 | Carl Reachly | 8 | Son | — | Iowa |
| 39 | Dorothy Reachly | 6 | Daughter | — | Iowa |
| 40 | H. H. Unkrich | 43 | Head | Farmer | 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)