MO
Mary Olsen — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Beltrami, Minnesota
Our Model Tree links this Mary Olsen across the 1920, 1930 and 1940 US Censuses in Beltrami, Minnesota (XGBoost, ~Confirmed) — first a spouse (b.~1885), then head of a 6-person household.
Age 45
b. ~1885
Female
Spouse
Born: Germany
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Beltrami, Minnesota |
| Surname | Olsen |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Germany |
| Naturalization Status | Naturalized |
| Year of Immigration | 1890 |
| Age at First Marriage | 21 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Additional Details | |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
| Township / Ward | Bemidji City |
| Est. Birth Year | ~1885 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Reuben Olsen | Son | — | 8 | ~1922 |
| Bertha Olsen | Daughter | — | 18 | ~1912 |
| Mary Olsen | Spouse | — | 45 | ~1885 |
| Walter Olsen | Son | — | 23 | ~1907 |
| Ernest Olsen | Son | — | 20 | ~1910 |
| Oscar Olsen | Head | — | 46 | ~1884 |
Census Appearances
1920
Beltrami, Minnesota
Spouse, age 35
Beltrami, Minnesota · implied b. ~1885 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olsen |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Germany |
| Year of Immigration | 1887 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Washerwoman |
| Industry | Home |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth Country | Germany |
| Year of Naturalization | 1891 |
| Birthplace (normalized) | germany |
1930
Beltrami, Minnesota
Spouse, age 45
Beltrami, Minnesota · implied b. ~1885 — 6 household members
| Surname | Olsen |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Germany |
| Naturalization Status | Naturalized |
| Year of Immigration | 1890 |
| Age at First Marriage | 21 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
1940
Beltrami-County, Minnesota
Spouse, age 55
Beltrami-County, Minnesota · implied b. ~1885 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Mary A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Germany |
| 1935 Residence (City) | Bemidji City |
| 1935 Residence (County) | Beltrami |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
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 45 · b. ~1885 · 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 — Beltrami, Minnesota
Open full size
1930 US Federal Census — Beltrami, Minnesota
Page Contents
50 people indexed on this census page (ia:1930:minnesotacensus00reel1079:0606)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Laura Jargar | 30 | Wife-H | — | Wisconsin |
| 52 | Harry Jargar | 18 | Son | — | North Dakota |
| 53 | Arthur Jargar | 16 | Son | — | North Dakota |
| 54 | Walter Jargar | 15 | Son | — | North Dakota |
| 55 | Gus Hofner | 34 | Head | Commercial Traveler | Minnesota |
| 56 | Ella Hofner | 33 | Wife | — | Minnesota |
| 57 | Florence Hofner | 13 | Daughter | — | Canada English |
| 58 | Lucia Hofner | 11 | Daughter | — | Canada English |
| 59 | Barnard Hofner | 10 | Son | — | Canada English |
| 60 | Richard Hofner | 9 | Son | — | Canada English |
| 61 | Harry Nelson | 33 | Lodger | Mechanic | Minnesota |
| 62 | Fred Lafman | 33 | Head | Mechanic | South Dakota |
| 63 | Stella Lafman | 27 | Wife | — | Iowa |
| 64 | Dolores M Lafman | 6 | Daughter | — | South Dakota |
| 65 | Margaret L Lafman | 5 | Daughter | — | North Dakota |
| 66 | Arnold F Lafman | 3 | Son | — | South Dakota |
| 67 | Martin W Lafman | 1 | Son | — | Minnesota |
| 68 | Laura Dort | 75 | Head | — | Wisconsin |
| 69 | Ray Dort | 14 | Grandson | — | Minnesota |
| 70 | Oscar Olsen | 46 | Head | Wood Sawyer | Minnesota |
| 71 | Mary Olsen THIS PERSON | 45 | Wife | — | Germany |
| 72 | Walter Olsen | 23 | Son | Teamster | Minnesota |
| 73 | Ernest Olsen | 20 | Son | Laborer | Minnesota |
| 74 | Bertha Olsen | 18 | Daughter | — | Minnesota |
| 75 | Reuben Olsen | 8 | Son | — | Minnesota |
| 76 | George Taylor | 47 | Head | Agent | North Carolina |
| 77 | Nora Taylor | 37 | Wife | — | Iowa |
| 78 | Beulah Taylor | 16 | Daughter | — | Minnesota |
| 79 | Milner Taylor | 13 | Son | — | Minnesota |
| 80 | George Jr Taylor | 11 | Son | — | Minnesota |
| 81 | Will E. Clark | 50 | Head | Janitor | Minnesota |
| 82 | Cora Clark | 36 | Wife | — | Iowa |
| 83 | Ellen Clark | 16 | Daughter | — | Canada English |
| 84 | Edwin Clark | 14 | Son | — | Canada English |
| 85 | Lawrence Clark | 12 | Son | — | Minnesota |
| 86 | Idelma Clark | 9 | Daughter | — | Minnesota |
| 87 | Joyce Clark | 7 | Daughter | — | Minnesota |
| 88 | Billy Clark | 2 | Son | — | Minnesota |
| 89 | Harry Bachle | 61 | Head | Janitor | New York |
| 90 | Myrtle Bachle | 59 | Wife | — | Pennsylvania |
| 91 | Sigvart Secken | 44 | Head | Proprietor | Minnesota |
| 92 | Marie Secken | 45 | Wife | — | Minnesota |
| 93 | Lois Secken | 12 | Daughter | — | Minnesota |
| 94 | Joseph M Secken | 9 | Son | — | Minnesota |
| 95 | Louise M Secken | 3 | Daughter | — | Minnesota |
| 96 | Paul Englund | 37 | Head | Fireman | Minnesota |
| 97 | Ella Englund | 32 | Wife | — | Minnesota |
| 98 | Fern Englund | 6 | Daughter | — | Minnesota |
| 99 | Enid Englund | 4 | Daughter | — | Minnesota |
| 100 | Jackie Englund | 2 | Son | — | Minnesota |
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)