RJ
Robert Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Delta-County, Michigan
Our Model Tree links this Robert Johnson across the 1920, 1930 and 1940 US Censuses in Delta-County, Michigan (XGBoost, ~Confirmed), with identified parents Axel & Elmer — first a son (b.~1920), then head of a 7-person household.
Age 20
b. ~1920
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Delta-County, Michigan |
| Surname | Johnson |
| Given Name | Robert E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Escanaba City |
| 1935 Residence (County) | Delta |
| Additional Details | |
| Occupation | Truck Driver |
| Industry | Retail Grocery Produce |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 432 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Truck Driver |
| Township / Ward | Escanaba City |
| 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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Helen Johnson | Daughter | — | 15 | ~1925 |
| Elmer Johnson | Head | — | 46 | ~1894 |
| Nettie Johnson | Other | — | 18 | ~1922 |
| Melvin Johnson | Son | — | 22 | ~1918 |
| Herbert Johnson | Son | — | 20 | ~1920 |
| Robert Johnson | Son | — | 20 | ~1920 |
| Clarence Johnson | Son | — | 21 | ~1919 |
Census Appearances
1920
Delta, Michigan
Son, age
Delta, Michigan · implied b. ~1920 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Robert O. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Michigan |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Delta, Michigan
Son, age 10
Delta, Michigan · implied b. ~1920 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Robert O |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Michigan |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Delta-County, Michigan
Son, age 20
Delta-County, Michigan · implied b. ~1920 — 7 household members
| Surname | Johnson |
| Given Name | Robert E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Escanaba City |
| 1935 Residence (County) | Delta |
| Occupation | Truck Driver |
| Industry | Retail Grocery Produce |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 432 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 Robert Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Axel Johnson (~0.92 confidence) and father Elmer Johnson (~0.92 confidence) and father Adel Johnson (~0.92 confidence) and mother Olga Johnson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Axel Johnson
b. ~1875
Source father
● Household
· direct · ~0.92
Father
Elmer Johnson
b. ~1894
Source father
● Household
· direct · ~0.92
Father
Adel Johnson
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Olga Johnson
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Johnson
Son · 1940 · age 20 · b. ~1920 · Michigan
★ You are viewing this record
Sibling
Herbert Johnson
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clarence Johnson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Melvin Johnson
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Johnson
Sibling · 1940 · age 15
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 — Delta-County, Michigan
Open full size
1940 US Federal Census — Delta-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01745-00462)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Isabel D. Walker | 18 | Daughter | — | Michigan |
| 2 | Louise A. Walker | 11 | Daughter | — | Michigan |
| 3 | Herman J. Roubal | 60 | Head | Engineer | Wisconsin |
| 4 | Marie Roubal | 55 | Wife | — | Norway |
| 5 | Evelyn Carleen | 31 | Daughter | Usher | Michigan |
| 6 | Earl Trabat | 24 | Son | Assistant Manager | Michigan |
| 7 | Bertha Clark | 88 | Mother-in-law | — | Germany |
| 8 | Anna N. Jones | 60 | Head | — | Michigan |
| 9 | Robert J. Jones | 23 | Son | Truck Driver | Michigan |
| 10 | Bernice M. Jones | 23 | Daughter | Waitress | Michigan |
| 11 | Gene M. Jones | 17 | Son | — | Michigan |
| 12 | Mathias Wolf | 77 | Head | — | Luxemburg |
| 13 | Anna Wolf | 67 | Wife | — | Luxemburg |
| 14 | John W. Wolf | 36 | Son | Supervising Clerk | Michigan |
| 15 | Emma M. Wolf | 33 | Daughter | Maid | Michigan |
| 16 | Richard A. Schwederman | 39 | Head | Papermaker | Minnesota |
| 17 | Freda R. Schwederman | 36 | Wife | — | Michigan |
| 18 | Lois J. Schwederman | 10 | Daughter | — | Michigan |
| 19 | Joseph A. Schlein | 74 | Head | — | Wisconsin |
| 20 | Mary Schlein | 74 | Wife | — | Wisconsin |
| 21 | Mary G. Mcmara | 41 | Head | Sewing Supervisor | Michigan |
| 22 | Clarence W. Derisle | 23 | Head | Taxi Driver | Michigan |
| 23 | Elizabeth M. Derisle | 21 | Wife | Waitress | Michigan |
| 24 | Elmer L. Johnson | 46 | Head | — | Michigan |
| 25 | Robert E. Johnson THIS PERSON | 20 | Son | Truck Driver | Michigan |
| 26 | Melvin O. Johnson | 22 | Son | Laborer | Michigan |
| 27 | Clarence Johnson | 21 | Son | Sheet Metal Worker | Michigan |
| 28 | Herbert Johnson | 20 | Son | Salesman | Michigan |
| 29 | Nettie Johnson | 18 | Low | New Worker | Michigan |
| 30 | Helen J. Johnson | 15 | Daughter | — | Michigan |
| 31 | John J. Burke | 86 | Head | — | Ireland |
| 32 | John J. Jr. Burke | 60 | Son | — | Illinois |
| 33 | Sophronia M. Burke | 57 | Daughter-in-law | — | Wisconsin |
| 34 | Cecelia L. Burke | 28 | Daughter | — | Michigan |
| 35 | John J. 3Rd Burke | 15 | Son | — | Michigan |
| 36 | Adolph Roman | 23 | Head | Laborer | Michigan |
| 37 | Josephine Roman | 31 | Wife | Saleswoman | Michigan |
| 38 | Carl E. Erickson | 65 | Head | Janitor | Sweden |
| 39 | Josephine Erickson | 62 | Wife | — | Sweden |
| 40 | Edwin L. Erickson | 33 | Son | Truck Driver | Michigan |
Related Census Records
Pedigree Summary
Robert + 4 siblings
Gen 1 · 4 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)