MO
Mary Olsen — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Clearwater, Minnesota
Our Model Tree links this Mary Olsen across the 1930 and 1940 US Censuses in Clearwater, Minnesota (XGBoost, ~Confirmed) — first a spouse (b.~1880), then head of a 7-person household.
Age 50
b. ~1880
Female
Spouse
Born: Minnesota
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Clearwater, Minnesota |
| Surname | Olsen |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Age at First Marriage | 24 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Sinclair Township |
| Est. Birth Year | ~1880 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Victor Olsen | Head | — | 49 | ~1881 |
| Clarence Olsen | Son | — | 19 | ~1911 |
| Gustaf Olsen | Other | — | 85 | ~1845 |
| Leo Olsen | Son | — | 21 | ~1909 |
| Clarice Olsen | Daughter | — | 15 | ~1915 |
| Mary Olsen | Spouse | — | 50 | ~1880 |
| Ruth Olsen | Daughter | — | 10 | ~1920 |
Census Appearances
1930
Clearwater, Minnesota
Spouse, age 50
Clearwater, Minnesota · implied b. ~1880 — 7 household members
| Surname | Olsen |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Age at First Marriage | 24 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Clearwater-County, Minnesota
Spouse, age 60
Clearwater-County, Minnesota · implied b. ~1880 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Sinclair Twp |
| 1935 Residence (County) | Clearwater |
| Hours Worked | 0 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Olsen
Spouse · 1930 · age 50 · b. ~1880 · Minnesota
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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 — Clearwater, Minnesota
Open full size
1930 US Federal Census — Clearwater, Minnesota
Page Contents
50 people indexed on this census page (ia:1930:minnesotacensus00reel1083:0495)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | E Rusel | 15 | Son | Farm Laborer | Minnesota |
| 52 | Paul L Rusel | 7 | Son | — | Minnesota |
| 53 | Lesley J Rusel | 6 | Son | — | Minnesota |
| 54 | Doris G Rusel | 4 | Daughter | — | Minnesota |
| 55 | Eunice L Rusel | 1 | Daughter | — | Minnesota |
| 56 | O. B. Swearingen | 60 | Boarder | — | U. S. |
| 57 | John O. Bardwell | 80 | Head | — | Pennsylvania |
| 58 | Eliza Bardwell | 79 | Wife | — | Minnesota |
| 59 | Tom Ollestad | 60 | Head | Farmer | Norway |
| 60 | Christina Ollestad | 60 | Wife | — | Norway |
| 61 | Carl O. Ollestad | 23 | Son | Farm Laborer | Minnesota |
| 62 | Bernhart S. Ollestad | 21 | Son | Farm Laborer | Minnesota |
| 63 | Oscar Tangbol | 52 | Head | Farmer | Norway |
| 64 | Gust Anderson | 56 | Head | Farmer | Sweden |
| 65 | Mary Anderson | 42 | Wife | — | Sweden |
| 66 | Elvin G. Anderson | 13 | Son | — | Minnesota |
| 67 | Elmer G. Anderson | 11 | Son | — | Minnesota |
| 68 | Milfred S. Anderson | 6 | Son | — | Minnesota |
| 69 | Victor Olsen | 49 | Head | Farmer | Minnesota |
| 70 | Mary Olsen THIS PERSON | 50 | Wife | — | Minnesota |
| 71 | Leo Olsen | 21 | Son | Farm Laborer | No Dakota |
| 72 | Clarence L. Olsen | 19 | Son | Farm Laborer | No Dakota |
| 73 | Clarice M. Olsen | 15 | Daughter | — | Minnesota |
| 74 | Ruth V. Olsen | 10 | Daughter | — | Minnesota |
| 75 | Gustaf Olsen | 85 | Father | — | Sweden |
| 76 | Jacob H. Berg | 60 | Head | Farmer | Norway |
| 77 | Annetta Berg | 50 | Wife | — | Norway |
| 78 | Osvald J. Berg | 24 | Son | Farm Laborer | Minnesota |
| 79 | Alf E. Berg | 19 | Son | Farm Laborer | Minnesota |
| 80 | Mavid O. Berg | 14 | Daughter | — | Minnesota |
| 81 | Hartvig E. Berg | 12 | Son | — | Minnesota |
| 82 | Oliver Vestrum | 38 | Head | Farmer | Minnesota |
| 83 | Helma Vestrum | 30 | Wife | — | Minnesota |
| 84 | Harvey Vestrum | 9 | Son | — | Minnesota |
| 85 | Arthur Vestrum | 8 | Son | — | Minnesota |
| 86 | Viola Vestrum | 6 | Daughter | — | Minnesota |
| 87 | Dora Vestrum | 5 | Daughter | — | Minnesota |
| 88 | Lyla Vestrum | 4 | Daughter | — | Minnesota |
| 89 | David Vestrum | 1 | Son | — | Minnesota |
| 90 | Clarence Westby | 37 | Head | Farmer | Minnesota |
| 91 | Stella A. Westby | 29 | Wife | — | Minnesota |
| 92 | Gavin H. Westby | 10 | Son | — | Minnesota |
| 93 | Lloyd A. Westby | 5 | Son | — | Minnesota |
| 94 | Peter A. Norborn | 61 | Head | Farmer | Sweden |
| 95 | Anna M. Norborn | 57 | Wife | — | Sweden |
| 96 | Agnes E. Norborn | 29 | Daughter | — | Minnesota |
| 97 | Oscar K. Norborn | 22 | Son | Farm Laborer | Minnesota |
| 98 | Edith L. Norborn | 19 | Daughter | — | Minnesota |
| 99 | Ester M. Norborn | 16 | Daughter | — | Minnesota |
| 100 | Per Halvarson | 87 | Father-in-law | — | Sweden |
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)