MO
Mary Olsen — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Pacific, Washington
Our Model Tree links this Mary Olsen across the 1920, 1930 and 1940 US Censuses in Pacific, Washington (XGBoost, ~Confirmed) — first a spouse (b.~1865), then head of a 3-person household.
Age 65
b. ~1865
Female
Spouse
Born: Finland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Pacific, Washington |
| Surname | Olsen |
| Given Name | Mary M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Finland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1891 |
| Age at First Marriage | 47 |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Additional Details | |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
| Township / Ward | Chinook |
| Est. Birth Year | ~1865 |
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.
3 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Andrew Olsen | Head | — | 65 | ~1865 |
| Oliver Olsen | Son | — | 30 | ~1900 |
| Mary Olsen | Spouse | — | 65 | ~1865 |
Census Appearances
Spouse, age 54
Pacific, Washington · implied b. ~1866 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Finland |
| Year of Immigration | 1882 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth Country | Finland |
| Year of Naturalization | 1890 |
| Birthplace (normalized) | finland |
1930
Pacific, Washington
Spouse, age 65
Pacific, Washington · implied b. ~1865 — 3 household members
| Surname | Olsen |
| Given Name | Mary M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Finland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1891 |
| Age at First Marriage | 47 |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1940
Pacific-County, Washington
Head, age 75
Pacific-County, Washington · implied b. ~1865 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olsen |
| Given Name | Matilda |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 75 |
| Marital Status | Widowed |
| Birthplace | Finland |
| 1935 Residence (City) | Ilwaco Town |
| 1935 Residence (County) | Pacific |
| Naturalization Status | Naturalized |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | No 2 |
| 1935 Residence | Same House |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
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 Mary Olsen across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Olsen
Spouse · 1930 · age 65 · b. ~1865 · Washington
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Pacific, Washington
Open full size
1930 US Federal Census — Pacific, Washington
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2509unit:0022)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Hans M. Haugaard | 51 | Head | Farmer | Denmark |
| 2 | Martin Rosendahl | 18 | Head | Farmer | Washington |
| 3 | Robert Thompson | 19 | Lodger | Farmer | Washington |
| 4 | Harry G. Johnson | 31 | Lodger | Farmer | Washington |
| 5 | Emil M. Ilin | 26 | Lodger | Farmer | Oregon |
| 6 | Arnie Johnson | 25 | Lodger | Farmer | Washington |
| 7 | Otto Wilson | 40 | Head | Fisherman | Finland |
| 8 | Sophie Wilson | 43 | Wife | — | Finland |
| 9 | Edward A. Wilson | 25 | Son | Fisherman | Washington |
| 10 | Walter A. Wilson | 3 | Son | — | Washington |
| 11 | Emma Onetti | 60 | Head | Housekeeper | Alabama |
| 12 | Mathilda Raisio | 55 | Head | Farmer | Germany |
| 13 | John J. Treat | 37 | Head | Farmer | Washington |
| 14 | Grace Treat | 28 | Wife | — | Oregon |
| 15 | John R. Treat | 9 | Son | Bus Driver | Oregon |
| 16 | Lawrence B. Treat | 4 | Son | — | Washington |
| 17 | Donald L. Treat | 2 | Son | — | Washington |
| 18 | Anton W. Buzon | 53 | Foreman | Foreman | Pennsylvania |
| 19 | Alexander Wahlberg | 53 | Laborer | Wood Sawyer | South Dakota |
| 20 | Lawrence E. Schuler | 33 | Laborer | Truck Driver | Washington |
| 21 | Earl E. Tedford | 19 | Laborer | Chaser | Kentucky |
| 22 | Simon P. Ambrose | 52 | Head | Farmer | Colorado |
| 23 | Selma A. Ambrose | 40 | Wife | — | Oregon |
| 24 | Melvin E. Ambrose | 23 | Son | Truck Driver | Washington |
| 25 | Edgar E. Ambrose | 21 | Son | Laborer | Washington |
| 26 | Burrell Thallman | 15 | Boarder | — | Michigan |
| 27 | John B. Hallstrom | 39 | Head | Farmer | Finland |
| 28 | Ellen H. Hallstrom | 45 | Wife | — | Finland |
| 29 | Hunt A. Hallstrom | 19 | Son | — | Oregon |
| 30 | Herbert E. Hallstrom | 15 | Son | — | Oregon |
| 31 | Eva E. E. Hallstrom | 14 | Daughter | — | Oregon |
| 32 | Joseph V. Bruman | 41 | Head | Farmer | Finland |
| 33 | John A. Rosendahl | 39 | Head | Farmer | Sweden |
| 34 | Agnes Rosendahl | 35 | Wife | — | Norway |
| 35 | Anna B. Rosendahl | 4 | Daughter | — | Washington |
| 36 | Evelin Rosendahl | 3 | Daughter | — | Washington |
| 37 | Paul O. Rosendahl | 2 | Son | — | Washington |
| 38 | Sarah J. Rosendahl | 1 | Daughter | — | Washington |
| 39 | Anna J. Rosendahl | 77 | Mother | — | Sweden |
| 40 | Andrew Olsen | 65 | Head | Farmer | Sweden |
| 41 | Mary M. Olsen THIS PERSON | 65 | Wife | — | Finland |
| 42 | Oliver A. Olsen | 30 | Son | Farmer | Washington |
| 43 | Arthur B. Jernstrom | 38 | Head | Fisherman | Finland |
| 44 | Sophia M. Jernstrom | 31 | Wife | — | Washington |
| 45 | Kenneth A. Jernstrom | 5 | Son | — | Washington |
| 46 | Betty J. Jernstrom | 2 | Daughter | — | Washington |
| 47 | Albert Pragger | 20 | Boarder | Steward | Canada |
| 48 | Matt Vassila | 44 | Boarder | Laborer | Finland |
| 49 | Einar Sivola | 36 | Boarder | Laborer | Finland |
| 50 | Eero Paavola | 41 | Boarder | Laborer | Finland |
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)