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Robert Olson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mason-County, Michigan
Our Model Tree links this Robert Olson across the 1930 and 1940 US Censuses in Mason-County, Michigan (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 11-person household.
Age 17
b. ~1923
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mason-County, Michigan |
| Surname | Olson |
| Given Name | Robert E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Ludington City |
| 1935 Residence (County) | Mason |
| Additional Details | |
| Occupation | Laborer |
| Industry | Furniture Factory |
| Class of Worker | PW |
| Hours Worked | 17 |
| Income (1939) | 100 |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Laborer |
| Township / Ward | Ludington City |
| Est. Birth Year | ~1923 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| William Olson | Son | — | 21 | ~1919 |
| Evelyn Olson | Daughter | — | 19 | ~1921 |
| Frederick Olson | Other | — | 4 | ~1936 |
| Willard Olson | Son | — | 6 | ~1934 |
| William Olson | Head | — | 47 | ~1893 |
| Robert Olson | Son | — | 17 | ~1923 |
| Jean Olson | Daughter | — | 9 | ~1931 |
| Dorothy Olson | Daughter | — | 13 | ~1927 |
| Edith Olson | Spouse | — | 43 | ~1897 |
| Hilda Olson | Daughter | — | 14 | ~1926 |
| Alvin Olson | Son | — | 11 | ~1929 |
Census Appearances
1930
Mason, Michigan
Son, age 7
Mason, Michigan · implied b. ~1923 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Occupation | none |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Mason-County, Michigan
Son, age 17
Mason-County, Michigan · implied b. ~1923 — 11 household members
| Surname | Olson |
| Given Name | Robert E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Ludington City |
| 1935 Residence (County) | Mason |
| Occupation | Laborer |
| Industry | Furniture Factory |
| Class of Worker | PW |
| Hours Worked | 17 |
| Income (1939) | 100 |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| 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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Olson
Son · 1940 · age 17 · b. ~1923 · Michigan
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Sibling
Willard Olson
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alvin Olson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evelyn Olson
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jean Olson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Olson
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Olson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hilda Olson
Sibling · 1940 · age 14
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 — Mason-County, Michigan
Open full size
1940 US Federal Census — Mason-County, Michigan
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01788-00216)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Howard R. Frey | 31 | Head | Laborer | Michigan |
| 2 | Margaret Frey | 29 | Wife | — | Michigan |
| 3 | Robert Frey | 8 | Son | — | Michigan |
| 4 | William E. Olson | 47 | Head | Car Repairer | Michigan |
| 5 | Edith S. Olson | 43 | Wife | — | Michigan |
| 6 | William E. Olson | 21 | Son | Laborer | Michigan |
| 7 | Evelyn W. Olson | 19 | Daughter | — | Michigan |
| 8 | Robert E. Olson THIS PERSON | 17 | Son | Laborer | Michigan |
| 9 | Hilda E. Olson | 14 | Daughter | — | Michigan |
| 10 | Dorothy M. Olson | 13 | Daughter | — | Michigan |
| 11 | Alvin L. Olson | 11 | Son | — | Michigan |
| 12 | Jean A. Olson | 9 | Daughter | — | Michigan |
| 13 | Willard R. Olson | 6 | Son | — | Michigan |
| 14 | Frederick Olson | 4 | Grand-son | — | Michigan |
| 15 | John Carlson | 58 | Head | Carpenter | Sweden |
| 16 | Berghild Carlson | 47 | Wife | — | Sweden |
| 17 | George B. Hockenstill | 49 | Head | Partner | Michigan |
| 18 | Mildred Hockenstill | 48 | Wife | — | Michigan |
| 19 | Catherine Hockenstill | 14 | Daughter | — | Michigan |
| 21 | Milton D. Slater | 51 | Head | Painter | Ohio |
| 22 | Coral A. Slater | 51 | Wife | — | Michigan |
| 23 | Richard C. Slater | 17 | Son | — | Michigan |
| 24 | Mildred R. Slater | 14 | Daughter | — | Michigan |
| 25 | Raynard M. Slater | 12 | Son | — | Michigan |
| 26 | Lewis Mac Lam | 32 | Head | Chief Steward | Michigan |
| 27 | Marian Mac Lam | 30 | Wife | — | Michigan |
| 28 | John L. Mac Lam | 12 | Son | — | Ohio |
| 29 | Jean P. Mac Lam | 7 | Daughter | — | Michigan |
| 30 | Carole Mac Lam | 0 | Daughter | — | Michigan |
| 31 | Alson Hopkins | 66 | Head | Laborer | Minnesota |
| 32 | Mae Hopkins | 62 | Wife | — | Michigan |
| 33 | Florence Toby | 35 | Daughter | Seamstress | Michigan |
| 34 | Margaret Toby | 16 | Grand-dau | — | Michigan |
| 35 | William R. Hayward | 50 | Head | Telegraph Opr | Michigan |
| 36 | Helen R. Hayward | 49 | Wife | — | Ohio |
| 37 | Byron C. Hayward | 16 | Son | — | Michigan |
| 38 | Betty J. Hayward | 15 | Daughter | — | Michigan |
| 39 | Elna A. Hayward | 9 | Daughter | — | Michigan |
| 40 | Harold Christiansen | 35 | Head | Fireman | Michigan |
Related Census Records
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)