RO
Robert Olson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ramsey-County, Minnesota
Our Model Tree links this Robert Olson across the 1920, 1930 and 1940 US Censuses in Ramsey-County, Minnesota (XGBoost, ~Confirmed), with identified parents Otto & Ellenore — first a head (b.~1893), then head of a 5-person household.
Age 47
b. ~1893
Male
Head
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Ramsey-County, Minnesota |
| Surname | Olson |
| Given Name | Robert L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | St. Paul City |
| 1935 Residence (County) | Ramsey |
| Additional Details | |
| Occupation | Machinist |
| Industry | Steam Railway |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 1900 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Machinist |
| Township / Ward | St Paul City |
| Est. Birth Year | ~1893 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Olson | Son | — | 14 | ~1926 |
| Jennie Olson | Spouse | — | 45 | ~1895 |
| Walter Olson | Son | — | 11 | ~1929 |
| Dorothy Olson | Daughter | — | 15 | ~1925 |
| Robert Olson | Head | — | 47 | ~1893 |
Census Appearances
1920
Ramsey, Minnesota
Son, age 27
Ramsey, Minnesota · implied b. ~1893 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Robert N. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Machinist |
| Industry | Railroad Shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Ramsey, Minnesota
Head, age 37
Ramsey, Minnesota · implied b. ~1893 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Robert A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Age at First Marriage | 31 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Machinist |
| Industry | Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 32 |
| Radio Set | R |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Ramsey-County, Minnesota
Head, age 47
Ramsey-County, Minnesota · implied b. ~1893 — 5 household members
| Surname | Olson |
| Given Name | Robert L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | St. Paul City |
| 1935 Residence (County) | Ramsey |
| Occupation | Machinist |
| Industry | Steam Railway |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 1900 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Otto Olson (~0.92 confidence) and mother Ellenore Olson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Otto Olson
b. ~1858
Source father
● Household
· direct · ~0.92
Mother
Ellenore Olson
b. ~1864
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Olson
Head · 1940 · age 47 · b. ~1893 · Minnesota
★ 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 — Ramsey-County, Minnesota
Open full size
1940 US Federal Census — Ramsey-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01994-00113)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ewald Gunderson | 30 | Head | Painter | Sweden |
| 2 | Edith Gunderson | 33 | Wife | — | Minnesota |
| 3 | Jim Gunderson | 7 | Son | — | Minnesota |
| 4 | Jeanette Gunderson | 2 | Daughter | — | Minnesota |
| 5 | Hubert Lange | 27 | Lodger | Artist Commercial | Wisconsin |
| 6 | Gust Ihle | 63 | Head | Janitor | Norway |
| 7 | Augusta Ihle | 52 | Wife | — | Sweden |
| 8 | Martha Ihle | 26 | Daughter | Stenographer | Minnesota |
| 9 | John Aamodt | 51 | Head | Janitor | Norway |
| 10 | Annetta Aamodt | 46 | Wife | — | Norway |
| 11 | Milton Aamodt | 15 | Son | — | Minnesota |
| 12 | Kenneth Aamodt | 21 | Nephew | Shipping Clerk | Minnesota |
| 13 | Ida W. Peterson | 66 | Head | — | Sweden |
| 14 | Fredrickson Peterson | None | Ethel | 35 | C 2 |
| 15 | Earl Peterson | 37 | Head | Foreign Correspondent | Minnesota |
| 16 | Lillian Peterson | 30 | Wife | — | Minnesota |
| 17 | Nancy Peterson | 3 | Daughter | — | Minnesota |
| 18 | Lawrence Johnson | 33 | Head | Auditing Clerk | Minnesota |
| 19 | Lillian Johnson | 33 | Wife | — | Minnesota |
| 20 | Lawrence Jr. Johnson | 2 | Son | — | Minnesota |
| 21 | Robert L. Olson THIS PERSON | 47 | Head | Machinist | Minnesota |
| 22 | Jennie C. Olson | 45 | Wife | — | Minnesota |
| 23 | Dorothy Olson | 15 | Daughter | — | Minnesota |
| 24 | Robert Olson | 14 | Son | — | Minnesota |
| 25 | Walter Olson | 11 | Son | — | Minnesota |
| 26 | Arvid O. Noreen | 44 | Head | — | Sweden |
| 27 | Jennie A. Noreen | 60 | Wife | — | Iowa |
| 28 | Waldstein Noreen | None | Nels | 58 | Hs 4 |
| 29 | Merrill Noreen | None | Kenneth | 58 | Hs 4 |
| 30 | Josephine Johnson | 65 | Head | — | Sweden |
| 31 | Lawrence Western | 33 | Head | Salesman | Minnesota |
| 32 | Melva Western | 32 | Wife | — | Minnesota |
| 33 | Laurel Western | 4 | Daughter | — | Minnesota |
| 34 | David Furrow | 43 | Head | Elevator Installer | Wisconsin |
| 35 | Alva Furrow | 37 | Wife | — | Minnesota |
| 36 | Harvey Furrow | 15 | Son | — | Minnesota |
| 37 | George F. De Hary | 45 | Head | Milk Salesman | Minnesota |
| 38 | Lilly A. De Hary | 46 | Wife | — | Minnesota |
| 39 | Robert G. De Hary | 21 | Son | — | Minnesota |
| 40 | Stanley V. De Hary | 15 | Son | Pin Setter | Minnesota |
Pedigree Summary
Robert
Gen 1 · 2 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)