RO
Ruth Olson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Polk, Iowa
Our Model Tree links this Ruth Olson across the 1920, 1930 and 1940 US Censuses in Polk, Iowa (XGBoost, ~Confirmed), with identified parents Oscar & Peter — first a daughter (b.~1916), then head of a 5-person household.
Age 14
b. ~1916
Female
Daughter
Born: Iowa
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Polk, Iowa |
| Surname | Olson |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1916 |
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 1930 census.
| Name | Relation to head | Relative to Ruth | Age | Birth yr |
|---|---|---|---|---|
| Bernice Olson | Spouse | — | 39 | ~1891 |
| Mary Olson | Daughter | — | 11 | ~1919 |
| Oscar Olson | Head | — | 45 | ~1885 |
| Ruth Olson | Daughter | — | 14 | ~1916 |
| Russell Olson | Son | — | 17 | ~1913 |
Census Appearances
1920
Polk, Iowa
Daughter, age 4
Polk, Iowa · implied b. ~1916 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Iowa |
| Mother Tongue | Danish |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Daughter, age 14
Polk, Iowa · implied b. ~1916 — 5 household members
| Surname | Olson |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Spouse, age 24
Polk-County, Iowa · implied b. ~1916 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olsen |
| Given Name | Ruth |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines city |
| 1935 Residence (County) | Polk |
| Occupation | waitress |
| Industry | dept store restaurant |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 250 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Ruth Olson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Oscar Olson (~0.92 confidence) and father Peter Olson (~0.92 confidence) and mother Bernice Olson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Oscar Olson
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Peter Olson
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Bernice Olson
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ruth Olson
Daughter · 1930 · age 14 · b. ~1916 · Iowa
★ You are viewing this record
Sibling
Russell Olson
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary 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 — Polk, Iowa
Open full size
1930 US Federal Census — Polk, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel677:0115)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jack Erickson | 17 | Son | None | Iowa |
| 2 | Oscar Olson | 45 | Head | Shipping Clerk | Denmark |
| 3 | Bernice Olson | 39 | Wife | None | Iowa |
| 4 | Russell Olson | 17 | Son | None | Iowa |
| 5 | Ruth Olson THIS PERSON | 14 | Daughter | None | Iowa |
| 6 | Mary Olson | 11 | Daughter | None | Iowa |
| 7 | John M Newby | 36 | Head | Mail Carrier | Tennessee |
| 8 | Bertha Newby | 38 | Wife | None | Iowa |
| 9 | Richard Newby | 6 | Son | None | Iowa |
| 10 | Mary Newby | 3 | Daughter | None | Iowa |
| 11 | Margaret Newby | 3 | Daughter | None | Iowa |
| 12 | William F Hardy | 48 | Head | Superintendent | Iowa |
| 13 | Agnes Hardy | 38 | Wife | None | Nebraska |
| 14 | Blanche Hardy | 6 | Daughter | None | Iowa |
| 15 | George Palmer | 30 | Head | Interior Decorator | Iowa |
| 16 | Irene Palmer | 26 | Wife | None | Iowa |
| 17 | Richard Palmer | 7 | Son | None | Iowa |
| 18 | Larry Palmer | 5 | Son | None | Iowa |
| 19 | Charles Collison | 37 | Head | Salesman | Iowa |
| 20 | Annalie Collison | 29 | Wife | None | Iowa |
| 21 | Charles Collison | 1 | Son | None | Iowa |
| 22 | John Morgan | 51 | Head | Truck Driver | Iowa |
| 23 | Flora Morgan | 47 | Wife | None | Illinois |
| 24 | Harry Morgan | 22 | Son | Baker | Iowa |
| 25 | Helen Morgan | 15 | Daughter | None | Iowa |
| 26 | Forest Stutzman | 46 | Head | Salesman | Illinois |
| 27 | Mattie Stutzman | 39 | Wife | None | Iowa |
| 28 | Mary Stutzman | 6 | Daughter | None | Iowa |
| 29 | Margaret Stutzman | 1 | Daughter | None | Iowa |
| 30 | William Schlenberger | 33 | Lodger | Inventor | Iowa |
| 31 | Joseph T Rosales | 31 | Head | Stock Clerk | Canada English |
| 32 | Marie Rosales | 24 | Wife | None | Missouri |
| 33 | Fred Rosales | 4 | Son | None | Iowa |
| 34 | Virgil Price | 49 | Head | Grocer | Iowa |
| 35 | Katie Price | 47 | Wife | None | Nebraska |
| 36 | Paul Cruikshank | 19 | Lodger | Truck Driver | Iowa |
| 37 | Durward Lunnon | 31 | Head | Articulator | Iowa |
| 38 | Lucille Lunnon | 30 | Wife | None | Iowa |
| 39 | Jack Lunnon | 11 | Son | None | Iowa |
| 40 | Gene Lunnon | 5 | Son | None | Iowa |
| 41 | George Wayne | 77 | Head | Retired | Ohio |
| 42 | Margaret Wayne | 67 | Wife | None | Canada English |
| 43 | Florence Kellogg | 42 | Head | Deputy Clerk | Iowa |
| 44 | Wayne Kellogg | 14 | Son | None | Iowa |
| 45 | Walter Price | 25 | Head | Meat Cutter | Iowa |
| 46 | Frances Price | 20 | Wife | None | Iowa |
| 47 | Ardith Price | 1 | Daughter | None | Iowa |
| 48 | Charles W Tunning | 41 | Head | Manager | Iowa |
| 49 | Maude Tunning | 38 | Wife | None | Iowa |
| 50 | Richard Tunning | 1 | Son | None | Iowa |
Pedigree Summary
Ruth + 2 siblings
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)