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Robert Olson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this Robert Olson across the 1920, 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed), with identified parents Sigurd & William — first a son (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Olson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (County) | Wayne |
| Additional Details | |
| Occupation | 40 |
| Industry | Ship Clerk |
| Class of Worker | Advertising |
| Highest Grade | Hs 2 |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | 40 |
| Township / Ward | Detroit City |
| Est. Birth Year | ~1919 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Mary Olson | Spouse | — | 44 | ~1896 |
| Harriett Olson | Daughter | — | 20 | ~1920 |
| Robert Olson | Son | — | 21 | ~1919 |
| Axel Olson | Head | — | 44 | ~1896 |
Census Appearances
1920
Wayne, Michigan
Son, age 1
Wayne, Michigan · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Robertia |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | England |
| Occupation | none |
| Mother Tongue | English |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Wayne, Michigan
Son, age 11
Wayne, Michigan · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olsen |
| Given Name | Robert G |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Michigan |
| Age at First Marriage | 4 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | England |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Wayne-County, Michigan
Son, age 21
Wayne-County, Michigan · implied b. ~1919 — 4 household members
| Surname | Olson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (County) | Wayne |
| Occupation | 40 |
| Industry | Ship Clerk |
| Class of Worker | Advertising |
| Highest Grade | Hs 2 |
| 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 Olson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Sigurd Olsen (~0.92 confidence) and father William Olson (~0.92 confidence) and mother Annie Olson (~0.92 confidence) and father Axel Olson (~0.92 confidence) and mother Mary Olson (~0.92 confidence) and mother Anna Olsen (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Sigurd Olsen
b. ~1894
Source father
● Household
· direct · ~0.92
Father
William Olson
b. ~1894
Source father
● Household
· direct · ~0.92
Mother
Annie Olson
b. ~1896
Source mother
● Household
· direct · ~0.92
Father
Axel Olson
b. ~1896
Source father
● Household
· direct · ~0.92
Mother
Mary Olson
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Anna Olsen
b. ~1898
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Olson
Son · 1940 · age 21 · b. ~1919 · Michigan
★ You are viewing this record
Sibling
Harriett Olson
Sibling · 1940 · age 20
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 — Wayne-County, Michigan
Open full size
1940 US Federal Census — Wayne-County, Michigan
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01871-00985)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Donna Pearson | 4 | Daughter | — | Michigan |
| 42 | Norman Pearson | 2 | Son | — | Michigan |
| 43 | August Rissanen | 60 | Head | Plumber | Finland |
| 44 | Elizabeth Rissanen | 54 | Wife | — | Finland |
| 45 | Leo Rissanen | 10 | Son | — | Michigan |
| 46 | Paul Tucker | 38 | Head | 45 | Indiana |
| 47 | Essie Tucker | 38 | Wife | — | Indiana |
| 48 | Lois Tucker | 17 | Daughter | 16 | Indiana |
| 49 | Jacob L Strauss | 45 | Head | Laborer | Poland |
| 50 | Etta Strauss | 41 | Wife | — | Austria |
| 51 | Evelyn Strauss | 21 | Daughter | 40 | New York |
| 52 | Abraham Strauss | 19 | Son | 40 | New York |
| 53 | Samuel Strauss | 16 | Son | — | New York |
| 54 | George Hornak | 52 | Head | Farmer | Czechoslovakia |
| 55 | Anna Hornak | 45 | Wife | — | Czechoslovakia |
| 56 | Joseph Hornak | 24 | Son | 48 | Michigan |
| 57 | George Hornak | 20 | Son | 40 | Michigan |
| 58 | Anna Hornak | 18 | Daughter | 30 | Michigan |
| 59 | Martin Tompcala | 39 | Boarder | Contractor | Czechoslovakia |
| 61 | Axel R Olson | 44 | Head | 40 | Michigan |
| 62 | Mary Olson | 44 | Wife | — | Austria |
| 63 | Robert Olson THIS PERSON | 21 | Son | 40 | Michigan |
| 64 | Harriett Olson | 20 | Daughter | 0 | Michigan |
| 65 | Chase Judy | 47 | Head | 48 | W. Virginia |
| 66 | Grace Judy | 47 | Wife | — | Michigan |
| 67 | Marjorie Judy | 20 | Daughter | 10 | Michigan |
| 68 | Elizabeth Judy | 15 | Daughter | 40 | Michigan |
| 69 | Thomas Griffen | 36 | Head | 40 | Michigan |
| 70 | Helen Griffen | 37 | Wife | — | Michigan |
| 71 | Thomas Griffen | 11 | Son | — | Michigan |
| 72 | Bernice Griffen | 5 | Daughter | — | Michigan |
| 73 | Margaret Dowling | 65 | Mother-in-law | — | Germany |
| 74 | Louis Meumann | 53 | Uncle | Auto Mechanic | Germany |
| 75 | Frank Clere | 55 | Head | 40 | Michigan |
| 76 | Florence Clere | 50 | Wife | — | England |
| 77 | Hazel Cornier | 22 | Step-daughter | — | England |
| 78 | Maurice Cornier | 21 | Step-son | Laborer | Canada |
| 79 | Velone Cornier | 20 | Daughter | Stenographer | Canada |
Pedigree Summary
Robert + 1 sibling
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)