DJ
Dorothy Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Boone-County, Iowa
Our Model Tree links this Dorothy Johnson across the 1920, 1930 and 1940 US Censuses in Boone-County, Iowa (XGBoost, ~Confirmed), with identified parents August & August — first a daughter (b.~1920), then head of a 7-person household.
Age 20
b. ~1920
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Boone-County, Iowa |
| Surname | Johnson |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Jackson Township |
| 1935 Residence (County) | Boone |
| Additional Details | |
| Occupation | Stenographer |
| Industry | office |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 360 |
| Highest Grade | C 1 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Stenographer |
| Township / Ward | Jackson Township |
| Est. Birth Year | ~1920 |
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 Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Betty Johnson | Daughter | — | 17 | ~1923 |
| Dorothy Johnson | Daughter | — | 20 | ~1920 |
| H Johnson | Head | — | 54 | ~1886 |
| Charles Johnson | Other | — | 9 | ~1931 |
| Bert Anderson | Other | — | 45 | ~1895 |
| Myron Johnson | Son | — | 22 | ~1918 |
| Ellen Johnson | Spouse | — | 48 | ~1892 |
Census Appearances
1920
Boone, Iowa
Daughter, age
Boone, Iowa · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Boone, Iowa
Daughter, age 10
Boone, Iowa · implied b. ~1920 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Dorothy L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| Age at First Marriage | 10 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Boone-County, Iowa
Daughter, age 20
Boone-County, Iowa · implied b. ~1920 — 7 household members
| Surname | Johnson |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Jackson Township |
| 1935 Residence (County) | Boone |
| Occupation | Stenographer |
| Industry | office |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 360 |
| Highest Grade | C 1 |
| 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 Dorothy Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father August Johnson (~0.92 confidence) and father August Johnson (~0.92 confidence) and father H Johnson (~0.92 confidence) and mother Ellen Johnson (~0.92 confidence) and mother Ellen Johnson (~0.92 confidence) and mother Ellen Johnson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
August Johnson
b. ~1885
Source father
● Household
· direct · ~0.92
Father
August Johnson
b. ~1866
Source father
● Household
· direct · ~0.92
Father
H Johnson
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Ellen Johnson
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Ellen Johnson
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Ellen Johnson
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Dorothy Johnson
Daughter · 1940 · age 20 · b. ~1920 · Iowa
★ You are viewing this record
Sibling
Betty Johnson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Myron Johnson
Sibling · 1940 · age 22
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-t0627-01141-00721)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Eleanor Hanson | 23 | Wife | — | Iowa |
| 2 | Frank Browning | 37 | Head | Farming | Iowa |
| 3 | Faye Browning | 37 | Wife | — | Iowa |
| 4 | Gerald Browning | 7 | Son | — | Iowa |
| 5 | B. Lewis Sparks | 51 | Head | Farming | Iowa |
| 6 | Verda Sparks | 16 | Daughter | — | Iowa |
| 7 | Robert Wilson | 16 | Hired hand | Hired Hand | Iowa |
| 8 | H. August Johnson | 54 | Head | Farming | Iowa |
| 9 | Ellen Johnson | 48 | Wife | — | Iowa |
| 10 | Myron Johnson | 22 | Son | — | Iowa |
| 11 | Dorothy Johnson THIS PERSON | 20 | Daughter | Stenographer | Iowa |
| 12 | Betty Johnson | 17 | Daughter | — | Iowa |
| 13 | Charles Johnson | 9 | Daughter|Son | — | Iowa |
| 14 | Bert Anderson | 45 | Hired hand | Hired Hand | Iowa |
| 15 | J. Malcolm Nelson | 42 | Head | Farming | Iowa |
| 16 | Mabel Nelson | 45 | Wife | — | Iowa |
| 17 | B. Walter Gustafson | 51 | Head | Farming | Iowa |
| 18 | Edna Gustafson | 46 | Wife | — | Iowa |
| 19 | Gladys Gustafson | 16 | Daughter | — | Iowa |
| 20 | Marjorie Gustafson | 13 | Daughter | — | Iowa |
| 21 | Evelyn Gustafson | 12 | Daughter | — | Iowa |
| 22 | Roy Gustafson | 10 | Son | — | Iowa |
| 23 | A. Arthur Nelson | 37 | Head | Farming | Iowa |
| 24 | Olga Nelson | 35 | Wife | — | Iowa |
| 25 | Shirley Nelson | 12 | Daughter | — | Iowa |
| 26 | Virginia Nelson | 9 | Daughter | — | Iowa |
| 27 | Martin Gustafson | 53 | Head | Farming | Iowa |
| 28 | Sadie Gustafson | 45 | Wife | — | Iowa |
| 29 | C. Edward Engstrom | 20 | Head | Farming | Illinois |
| 30 | Mabel Engstrom | 65 | Wife | — | Illinois |
| 31 | Opal Hoppe | 37 | Head | — | Iowa |
| 32 | Richard Hoppe | 14 | Son | — | Iowa |
| 33 | Fred Richards | 66 | Head | Farming | Illinois |
| 34 | J. Edward Ades | 34 | Head | Farming | Iowa |
| 35 | Marie Ades | 33 | Wife | — | Iowa |
| 36 | Norman Ades | 7 | Son | — | Iowa |
| 37 | Larry Ades | 2 | Son | — | Iowa |
| 38 | Albert Doerder | 58 | Head | Farming | Iowa |
| 39 | Rosa Doerder | 55 | Wife | — | Iowa |
| 40 | Francis Doerder | 24 | Son | Farming | Iowa |
Pedigree Summary
Dorothy + 2 siblings
Gen 1 · 6 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)