WO
William Olson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Salt Lake, Utah
Our Model Tree links this William Olson across the 1930 and 1940 US Censuses in Salt Lake, Utah (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 10-person household.
Age 5
b. ~1925
Male
Son
Born: Utah
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Salt Lake, Utah |
| Surname | Olson |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Occupation | none |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Township / Ward | Salt Lake City |
| Est. Birth Year | ~1925 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Arnold Olson | Son | — | 18 | ~1912 |
| Karl Olson | Son | — | 12 | ~1918 |
| William Olson | Son | — | 5 | ~1925 |
| Barbara Olson | Daughter | — | 1 | ~1929 |
| Sylvia Olson | Daughter | — | 16 | ~1914 |
| Ruth Olson | Daughter | — | 14 | ~1916 |
| Erick Olson | Son | — | 19 | ~1911 |
| Axel Olson | Head | — | 50 | ~1880 |
| Joseph Claus | Other | — | 21 | ~1909 |
| Anna Olson | Spouse | — | 54 | ~1876 |
Census Appearances
1930
Salt Lake, …
Son, age 5
Salt Lake, Utah · implied b. ~1925 — 10 household members
| Surname | Olson |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1940
Salt-Lake-County, Utah
Son, age 15
Salt-Lake-County, Utah · implied b. ~1925 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ohlson |
| Given Name | William J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Salt Lake City |
| 1935 Residence (County) | Salt Lake |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | Yes 8 |
| 1935 Residence | Same place |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
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 William Olson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Olson
Son · 1930 · age 5 · b. ~1925 · Utah
★ You are viewing this record
Sibling
Barbara Olson
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sylvia Olson
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arnold Olson
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Erick Olson
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Olson
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Karl Olson
Sibling · 1930 · age 12
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 — Salt Lake, Utah
Open full size
1930 US Federal Census — Salt Lake, Utah
Page Contents
48 people indexed on this census page (ia:1930:15thcensus2421unit:0773)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frederick Beesley | 65 | Head | Bookkeeper | Utah |
| 2 | Elizabeth P. Beesley | 65 | Wife | None | Utah |
| 3 | Herman Bruschke | 52 | Head | Gardner | Germany |
| 4 | Frieda J. Bruschke | 43 | Wife | None | Germany |
| 5 | Martha Bruschke | 21 | Daughter | Teacher | Utah |
| 6 | Wilford H. Bruschke | 20 | Son | None | Utah |
| 7 | Ernest R. Bruschke | 19 | Son | None | Utah |
| 8 | Henry R. Bruschke | 17 | Son | None | Utah |
| 9 | Herman Bruschke | 13 | Son | None | Utah |
| 10 | Albert B. Bruschke | 9 | Son | None | Utah |
| 11 | Sophia Sohfing | 72 | Mother-in-law | None | Germany |
| 12 | Rodney B. Shelley | 39 | Head | Mining Engineer | New York |
| 13 | Reta G. Shelley | 38 | Wife | None | Utah |
| 14 | Lawrence Bruschke | 69 | Boarder | Bookkeeper | Germany |
| 15 | Clarence Nelson | 28 | Boarder | Musician | Washington |
| 16 | Axel B. Olson | 50 | Head | Secretary | Sweden |
| 17 | Anna J. Olson | 54 | Wife | None | Sweden |
| 18 | Erick G. Olson | 19 | Son | None | Utah |
| 19 | Arnold G. Olson | 18 | Son | None | Utah |
| 20 | Sylvia V. Olson | 16 | Daughter | None | Utah |
| 21 | Ruth Olson | 14 | Daughter | None | Utah |
| 22 | Karl G. Olson | 12 | Son | None | Utah |
| 23 | William Olson THIS PERSON | 5 | Son | None | Utah |
| 24 | Barbara A. Olson | 1 | Daughter | None | Utah |
| 25 | Joseph H. Claus | 21 | Boarder | Automobile Salesman | Sweden |
| 26 | Joseph H. Peterson | 49 | Head | None | Utah |
| 27 | Alma J. Peterson | 46 | Wife | None | Sweden |
| 28 | Virginia Peterson | 23 | Daughter | Stenographer | Utah |
| 29 | Edna Peterson | 21 | Daughter | None | Utah |
| 30 | D. Roy Peterson | 18 | Son | None | Utah |
| 31 | Myrtle Peterson | 16 | Daughter | None | Utah |
| 32 | Allan Peterson | 14 | Son | None | Utah |
| 33 | Dorothy Peterson | 11 | Daughter | None | Utah |
| 34 | Howard Peterson | 9 | Son | None | Utah |
| 35 | Vernon Peterson | 7 | Son | None | Utah |
| 36 | Mary Peterson | 24 | Boarder | Stenographer | Utah |
| 37 | Alice H. Thirst | 81 | Head | None | England |
| 38 | Margaret George | 15 | Granddaughter | None | Utah |
| 39 | Hazel A. Clements | 52 | Head | None | Massachusetts |
| 40 | Charles Clements | 12 | Son | None | Utah |
| 41 | Lillian Clements | 16 | Daughter | Poultry Farmer | Utah |
| 42 | Donald Callahan | 32 | Head | Mechanic | Utah |
| 43 | Ethel Callahan | 31 | Wife | None | Utah |
| 44 | John Donnelly | 9 | Son | None | Utah |
| 45 | Margaret Donnelly | 8 | Daughter | None | Utah |
| 46 | Helen Donnelly | 4 | Daughter | None | Utah |
| 47 | William Donnelly | 4 | Son | None | Utah |
| 48 | Carolina Peterson | 65 | Mother-in-law | None | Utah |
Related Census Records
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)