RO
Robert Olson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Robert Olson across the 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a son (b.~1914), then head of a 9-person household.
Age 16
b. ~1914
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Olson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| Est. Birth Year | ~1914 |
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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Virginia Olson | Daughter | — | 13 | ~1917 |
| Elsie Olson | Daughter | — | 11 | ~1919 |
| Walter Olson | Son | — | 9 | ~1921 |
| Robert Olson | Son | — | 16 | ~1914 |
| Donald Olson | Son | — | 2 | ~1928 |
| William Bunsworth | Other | — | 44 | ~1886 |
| Elizabeth Olson | Spouse | — | 36 | ~1894 |
| Walter Olson | Head | — | 38 | ~1892 |
| Earl Andrews | Other | — | 45 | ~1885 |
Census Appearances
1930
Cook, Illinois
Son, age 16
Cook, Illinois · implied b. ~1914 — 9 household members
| Surname | Olson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 26
Cook-County, Illinois · implied b. ~1914 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olsen |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Salesman |
| Industry | Wholesale Foods |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | H-2 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 · 1930 · age 16 · b. ~1914 · Illinois
★ You are viewing this record
Sibling
Walter Olson
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Olson
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Olson
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elsie Olson
Sibling · 1930 · age 11
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
1930 US Federal Census — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel483:0055)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Peter Refkas | 17 | Son | — | Illinois |
| 2 | George Refkas | 15 | Son | — | Illinois |
| 3 | Catherine Refkas | 13 | Daughter | — | Illinois |
| 4 | Henry B. Scott | 48 | Head | Inspector | New York |
| 5 | Jennette Scott | 40 | Wife | — | Canada-French |
| 6 | Walter Scott | 20 | Son | Shipping Clerk | New York |
| 7 | John Scott | 16 | Son | Errand Boy | New York |
| 8 | Paul Scott | 15 | Son | — | New York |
| 9 | Madaline Scott | 12 | Daughter | — | New York |
| 10 | Marie Scott | 9 | Daughter | — | Michigan |
| 11 | Cecile Assentio | 19 | Daughter | Packer | New York |
| 12 | Fred Hreng | 60 | Head | Janitor | Germany |
| 13 | Mary Hreng | 47 | Wife | — | Germany |
| 14 | Edward R. Hreng | 14 | Son | — | Illinois |
| 15 | [Blank] Hreng | None | [blank] | [Blank] | [blank] |
| 16 | Enidio Bizzoni | 39 | Head | Waiter | Italy |
| 17 | Domenica Bizzoni | 38 | Wife | — | Italy |
| 18 | Rose Bizzoni | 7 | Daughter | — | Italy |
| 19 | Gaetano Bizzoni | 4 | Son | — | Italy |
| 20 | Geneva Bizzoni | 2 | Daughter | — | Illinois |
| 21 | Joseph Keefe | 64 | Head | — | New York |
| 22 | Rose Keefe | 60 | Wife | Laborer | Illinois |
| 23 | Benny Puccinelli | 41 | Head | Waiter | Italy |
| 24 | Jenny Puccinelli | 33 | Wife | — | Italy |
| 25 | Alice Puccinelli | 13 | Daughter | — | Illinois |
| 26 | Dora Puccinelli | 12 | Daughter | — | Illinois |
| 27 | Paia Cologio | 50 | Head | Labourer | Italy |
| 28 | Paia Cologio | 44 | Wife | — | Italy |
| 29 | Patricia Cologio | 21 | Daughter | Saleslady | Illinois |
| 30 | Constance Cologio | 16 | Daughter | — | Illinois |
| 31 | Louis Cologio | 13 | Son | — | Illinois |
| 32 | Joseph Alessi | 24 | Head | Shipping Clerk | Illinois |
| 33 | Louise Alessi | 20 | Wife | Machine Operator | Illinois |
| 34 | Antonio La Padia | 44 | Head | — | Italy |
| 35 | Andrew La Padia | 23 | Son | Machine Operator | Italy |
| 36 | Victor La Padia | 20 | Son | Machine Operator | Italy |
| 37 | Victor Ritti | 27 | Head | Book Binder | Italy |
| 38 | Margaret Ritti | 22 | Wife | — | Illinois |
| 39 | Marie-Ab Ritti | 5 | Daughter | — | Illinois |
| 40 | Margaret Ritti | 4 | Daughter | — | Illinois |
| 41 | Dominic Ritti | 1 | Son | — | Illinois |
| 42 | Walter Olson | 38 | Head | Plater | Sweden |
| 43 | Elizabeth Olson | 36 | Wife | House Servant | Illinois |
| 44 | Robert Olson THIS PERSON | 16 | Son | — | Illinois |
| 45 | Virginia E. Olson | 13 | Daughter | — | Illinois |
| 46 | Elsie L. Olson | 11 | Daughter | — | Illinois |
| 47 | Walter Jr. Olson | 9 | Son | — | Illinois |
| 48 | Donald W. Olson | 2 | Son | — | Illinois |
| 49 | Earl Andrews | 45 | Boarder | Fireman | Ohio |
| 50 | William Bunsworth | 44 | Boarder | Checker | Irish Free State |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)