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Oscar Olson — 1920 US Census Record
Model Tree available1920 United States Federal Census · Whatcom, Washington
Our Model Tree links this Oscar Olson across the 1900, 1910 and 1920 US Censuses in Whatcom, Washington (XGBoost, ~Confirmed), with identified parents Andrew & Andrew — first a son (b.~1893), then head of a 5-person household.
Age 27
b. ~1893
Male
Son
Born: Washington
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Whatcom, Washington |
| Surname | Olson |
| Given Name | Oscar A. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Occupation | Laborer |
| Industry | Pile Driver |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Laborer |
| Township / Ward | Bellingham 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 1920 census.
| Name | Relation to head | Relative to Oscar | Age | Birth yr |
|---|---|---|---|---|
| Virginia Olson | Daughter | — | 18 | ~1902 |
| Clara Olson | Daughter | — | 24 | ~1896 |
| Andrew Olson | Head | — | 61 | ~1859 |
| Oscar Olson | Son | — | 27 | ~1893 |
| Clara Olson | Spouse | — | 55 | ~1865 |
Census Appearances
1900
Whatcom, Washington
Son, age 8
Whatcom, Washington · implied b. ~1892 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Oscar C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Washington |
| Birth Month | Jan |
| Birth Year | 1892 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1910
Whatcom, Washington
Son, age 18
Whatcom, Washington · implied b. ~1892 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olsen |
| Given Name | Oscar G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Laborer |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1920
Whatcom, Washington
Son, age 27
Whatcom, Washington · implied b. ~1893 — 5 household members
| Surname | Olson |
| Given Name | Oscar A. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Laborer |
| Industry | Pile Driver |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
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 Oscar Olson across 3 US Census years (1900, 1910 and 1920) in Whatcom, Washington, using XGBoost record linkage. Identified parents: father Andrew Olson (~0.92 confidence) and father Andrew Olsen (~0.92 confidence) and father Andrew Olson (~0.92 confidence) and mother Clara Olson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Andrew Olson
b. ~1859
Source father
● Household
· direct · ~0.92
Father
Andrew Olsen
b. ~1859
Source father
● Household
· direct · ~0.92
Father
Andrew Olson
b. ~1860
Source father
● Household
· direct · ~0.92
Mother
Clara Olson
b. ~1863
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Oscar Olson
Son · 1920 · age 27 · b. ~1893 · Washington
★ You are viewing this record
Sibling
Virginia Olson
Sibling · 1920 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clara Olson
Sibling · 1920 · age 24
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
1920 US Federal Census — Whatcom, Washington
Open full size
1920 US Federal Census — Whatcom, Washington
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1943unit:1080)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | B. Thomas | 28 | son | Conveyor | Washington |
| 52 | Robert Thomas | 15 | son | None | Washington |
| 53 | Ethel Thomas | 13 | daughter | None | Washington |
| 54 | Lewis A. Boutwell | 38 | Head | Cook | Ohio |
| 55 | Pauline L. Boutwell | 37 | wife | None | Washington |
| 56 | Leland E. Boutwell | 11 | son | None | Canada |
| 57 | Victor C. Boutwell | 11 | son | None | Canada |
| 58 | Edna L. Boutwell | 10 | daughter | None | Washington |
| 59 | George C. Teague | 29 | Head | Motorman | California |
| 60 | Thelma M. Teague | 28 | wife | None | California |
| 61 | Dina L. Teague | 5 | daughter | None | Oregon |
| 62 | Jane M. Teague | 3 | daughter | None | Oregon |
| 63 | Ted Harkness | 36 | Head | Oiler | Wisconsin |
| 64 | Anna Harkness | 35 | wife | None | Wisconsin |
| 65 | George W. Pfarr | 50 | Head | Broker | Ohio |
| 66 | Grace H. Pfarr | 34 | wife | None | Wisconsin |
| 67 | Merrill Connell | 62 | Head | Printer | Ohio |
| 68 | Cecilia H. Connell | 54 | wife | None | California |
| 69 | Andrew M. Olson | 61 | Head | Cook | Sweden |
| 70 | Clara S. Olson | 55 | wife | None | Sweden |
| 71 | Oscar A. Olson THIS PERSON | 27 | son | Laborer | Washington |
| 72 | Clara Olson | 24 | daughter | None | Washington |
| 73 | Virginia Olson | 18 | daughter | None | Washington |
| 74 | George C. Dellinger | 74 | Head | Operator | Wisconsin |
| 75 | Hattie A. Dellinger | 70 | wife | None | Vermont |
| 76 | John Davis | 63 | Head | Plumber | England |
| 77 | Mary Davis | 70 | wife | None | Canada |
| 78 | Henry S. Howard | 23 | Head | Secretary | Oklahoma |
| 79 | Frieda M. Howard | 19 | wife | None | Texas |
| 80 | Harold E. S. Key | 31 | Head | Salesman | England |
| 81 | Esther J. Key | 23 | wife | None | Sweden |
| 82 | James V. Key | 3 | son | None | Washington |
| 83 | Axel W. Salstrom | 20 | Head | Garage Worker | Sweden |
| 84 | Jessie A. Salstrom | 18 | wife | Waitress | Michigan |
| 85 | Grace Z. Salstrom | 0 | daughter | None | Washington |
| 86 | William H. Murray | 31 | Head | Laborer | Arkansas |
| 87 | Jessie M. Murray | 28 | wife | None | Kentucky |
| 88 | Chris H. Simon | 44 | Head | Mech. Engineer | Wisconsin |
| 89 | Hazel M. Simon | 34 | wife | None | California |
| 90 | Henrietta P. Simon | 15 | daughter | None | Washington |
| 91 | Robert C. Simon | 6 | son | None | Washington |
| 92 | William S. Helman | 64 | father-in-law | Machinist | California |
| 93 | Emma D. Helman | 62 | mother-in-law | None | Illinois |
| 94 | Paul B. Speer | 33 | Head | Driver | Washington |
| 95 | Hazel D. Speer | 21 | wife | None | Washington |
| 96 | James Bevins | 61 | Head | None | Canada |
| 97 | Edward A. Bevins | 28 | son | Laborer | Washington |
| 98 | Alice M. Bevins | 26 | daughter-in-law | None | Washington |
| 99 | James E. Bevins | 5 | grandson | None | Washington |
| 100 | Alice M. Bevins | 2 | granddaughter | None | Washington |
Pedigree Summary
Oscar + 2 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)