DJ
Donald Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Story-County, Iowa
Our Model Tree links this Donald Johnson across the 1920, 1930 and 1940 US Censuses in Story-County, Iowa (XGBoost, ~Confirmed), with identified parents Oscar & Lucy — first a son (b.~1914), then head of a 3-person household.
Age 26
b. ~1914
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Story-County, Iowa |
| Surname | Johnson |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Nevada city |
| 1935 Residence (County) | Story |
| Additional Details | |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Nevada City |
| Est. Birth Year | ~1914 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Donald | Age | Birth yr |
|---|---|---|---|---|
| Oscar Johnson | Head | — | 66 | ~1874 |
| Donald Johnson | Son | — | 26 | ~1914 |
| Lucy Johnson | Spouse | — | 51 | ~1889 |
Census Appearances
1920
Story, Iowa
Son, age 6
Story, Iowa · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Donald J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Nebraska |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Story, Iowa
Son, age 16
Story, Iowa · implied b. ~1914 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Nebraska |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Story-County, Iowa
Son, age 26
Story-County, Iowa · implied b. ~1914 — 3 household members
| Surname | Johnson |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Nevada city |
| 1935 Residence (County) | Story |
| 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 Donald Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Oscar Johnson (~0.92 confidence) and mother Lucy Johnson (~0.92 confidence) and mother Lucy Johnson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Oscar Johnson
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Lucy Johnson
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Lucy Johnson
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Donald Johnson
Son · 1940 · age 26 · b. ~1914 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Story-County, Iowa
Open full size
1940 US Federal Census — Story-County, Iowa
Page Contents
29 people indexed on this census page (nara:1940:m-t0627-01206-00687)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Helen Jane Billings | 2 | Dau | — | Iowa |
| 2 | J. O. Padelford | 57 | Head | Box Maker | Iowa |
| 3 | Myrtle V. Padelford | 55 | Wife | — | Iowa |
| 4 | Harold Padelford | 30 | Son | Box Maker | Iowa |
| 5 | Lucille Padelford | 21 | Dau | — | Iowa |
| 6 | Ray Padelford | 18 | Son | — | Iowa |
| 7 | Fred L. Younker | 53 | Head | Farming | Iowa |
| 8 | Edna Younker | 47 | Wife | — | Iowa |
| 9 | Jeanette Younker | 24 | Dau | Bookkeeper | Iowa |
| 10 | Darlene Younker | 14 | Dau | — | Iowa |
| 11 | Charles O'Donnell | 48 | Head | Carpenter | Ohio |
| 12 | Nellie Marcel O'Donnell | 24 | Wife | — | Iowa |
| 13 | Robert George O'Donnell | 4 | Son | — | Iowa |
| 14 | Barbara Ann O'Donnell | 1 | Dau | — | Iowa |
| 15 | Oscar Johnson | 66 | Head | Painter | Iowa |
| 16 | Lucy Johnson | 51 | Wife | Laundry | Iowa |
| 17 | Donald Johnson THIS PERSON | 26 | Son | — | Iowa |
| 18 | Kenneth Dawson | 29 | Head | Shop Man | Iowa |
| 19 | Rush Houston | 57 | Head | Physician | Kansas |
| 20 | Larry Edward Houston | 8 | Son | — | Iowa |
| 21 | Argyle Thompson | 31 | Roomer | Pharmacist | Iowa |
| 22 | Robert Evans | 33 | Head | U.S.P.A. 4-H Club | Iowa |
| 23 | Doris Evans | 24 | Wife | — | Iowa |
| 24 | Anna Wood | 73 | Head | — | Penn |
| 25 | Mable Robinson | 70 | Head | — | Iowa |
| 26 | Winifred Robinson | 41 | Dau | Sorter | Iowa |
| 27 | George Robinson | 35 | Son | Carpenter | Iowa |
| 28 | Juanita Goelner | 18 | Head | Housework | Iowa |
| 29 | Maxine Munn | 79 | Roomer | Clerk | Iowa |
Pedigree Summary
Donald
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)