OJ
Olga Johnson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Ramsey, Minnesota
Our Model Tree links this Olga Johnson across the 1910, 1920 and 1930 US Censuses in Ramsey, Minnesota (XGBoost, ~Confirmed), with identified parents N & Nels — first a daughter (b.~1884), then head of a 2-person household.
Age 46
b. ~1884
Female
Daughter
Born: Minnesota
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Ramsey, Minnesota |
| Surname | Johnson |
| Given Name | Olga F. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Occupation | Helper |
| Industry | Paper Box Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Helper |
| Township / Ward | St Paul City |
| Est. Birth Year | ~1884 |
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.
2 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Olga | Age | Birth yr |
|---|---|---|---|---|
| Olga Johnson | Daughter | — | 46 | ~1884 |
| Nels Johnson | Head | — | 77 | ~1853 |
Census Appearances
1910
Ramsey, Minnesota
Daughter, age 24
Ramsey, Minnesota · implied b. ~1886 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Olga |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Assistant |
| Industry | in Dr. office |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1920
Ramsey, Minnesota
Daughter, age 35
Ramsey, Minnesota · implied b. ~1885 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Olga |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Box Maker |
| Industry | Paper Box Factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Ramsey, Minnesota
Daughter, age 46
Ramsey, Minnesota · implied b. ~1884 — 2 household members
| Surname | Johnson |
| Given Name | Olga F. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Helper |
| Industry | Paper Box Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 Olga Johnson across 3 US Census years (1910, 1920 and 1930) in Ramsey, Minnesota, using XGBoost record linkage. Identified parents: father N Johnson (~0.92 confidence) and father Nels Johnson (~0.92 confidence) and father Nels Johnson (~0.92 confidence) and mother Annie Johnson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
N Johnson
b. ~1851
Source father
● Household
· direct · ~0.92
Father
Nels Johnson
b. ~1853
Source father
● Household
· direct · ~0.92
Father
Nels Johnson
b. ~1854
Source father
● Household
· direct · ~0.92
Mother
Annie Johnson
b. ~1861
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Olga Johnson
Daughter · 1930 · age 46 · b. ~1884 · Minnesota
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Ramsey, Minnesota
Open full size
1930 US Federal Census — Ramsey, Minnesota
Page Contents
50 people indexed on this census page (ia:1930:minnesotacensus00reel1120:0240)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | John F. Murphy | 30 | Son | City Salesman | Minnesota |
| 52 | Joseph Murphy | 27 | Son | Shipping Clerk | Minnesota |
| 53 | Leonard Murphy | 25 | Son | Proprietor | Minnesota |
| 54 | Ely Bias | 53 | Head | Painter Helper | Rumania |
| 55 | Anna Bias | 49 | Wife | — | Rumania |
| 56 | Louis Varlice | 36 | Head | Painter Helper | Rumania |
| 57 | Lena Varlice | 28 | Wife | — | Rumania |
| 58 | John H. Heyer | 25 | Head | Yellow Dipper | Wisconsin |
| 59 | Anne B. Heyer | 23 | Wife | Stenographer | Wisconsin |
| 60 | Daniel B. Heyer | 21 | Head | Apprentice | Wisconsin |
| 61 | Eldora M. Heyer | 22 | Wife | Wrapper | Iowa |
| 62 | Dema Belge | 59 | Head | Laborer | Rumania |
| 63 | Rosa Belge | 58 | Wife | — | Rumania |
| 64 | Elizabeth Belge | 61 | Boarder | — | Hungary |
| 65 | Maria Peterson | 34 | Head | Seamstress | Sweden |
| 66 | Donald Peterson | 9 | Son | — | Minnesota |
| 67 | Axel Anderson | 41 | Cousin | Roofer | Sweden |
| 68 | William J. Bernhardt | 34 | Head | City Salesman | Minnesota |
| 69 | Florence Bernhardt | 34 | Wife | — | Minnesota |
| 70 | Kenneth H. Bernhardt | 13 | Son | — | Minnesota |
| 71 | Virginia L. Bernhardt | 11 | Daughter | — | Minnesota |
| 72 | Glenn R. Bernhardt | 10 | Son | — | Minnesota |
| 73 | Leonard Larson | 19 | Brother-in-law | Laborer | Minnesota |
| 74 | Inga Anderson | 45 | Head | Housekeeper | Norway |
| 75 | Albert Shipstead | 52 | Head | Laborer | Sweden |
| 76 | Ida Shipstead | 52 | Wife | Laundress | Sweden |
| 77 | Edward Moe | 26 | Boarder | Battery Maker | Wisconsin |
| 78 | Helen G. Moe | 23 | Daughter | File Clerk | Minnesota |
| 79 | Shirley I. Moe | 5 | Daughter | — | Minnesota |
| 80 | Thomas Collins | 66 | Head | Packer | Connecticut |
| 81 | Cora Collins | 55 | Wife | Book Binder | Canada English |
| 82 | Uma Mullen | 54 | Sister-in-law | Press Feeder | Canada English |
| 83 | Ephraim Ladd | 72 | Head | Janitor | England |
| 84 | Milton N. Mclean | 73 | Head | Stationary Engineer | Minnesota |
| 85 | Effie H. Mclean | 71 | Wife | — | Kansas |
| 86 | Harry M. Mclean | 48 | Son | Elevator Operator | Kansas |
| 87 | Myrtle C. Mclean | 35 | Daughter | — | Minnesota |
| 88 | Glenn G. Mclean | 18 | Grandson | — | Minnesota |
| 89 | Peter L. Vandermey | 37 | Head | Optician | Minnesota |
| 90 | Anna M. Vandermey | 28 | Wife | — | Russia |
| 91 | Cecilia A. Vandermey | 5 | Daughter | — | Wisconsin |
| 92 | Robert J. Vandermey | 2 | Son | — | Minnesota |
| 93 | Rosemary A. Vandermey | 1 | Daughter | — | Minnesota |
| 94 | Loretta A. Vandermey | 0 | Daughter | — | Minnesota |
| 95 | Cecelia Ziebauer | 61 | Mother-in-law | — | Russia |
| 96 | Nels Johnson | 77 | Head | — | Sweden |
| 97 | Olga F. Johnson THIS PERSON | 46 | Daughter | Helper | Minnesota |
| 98 | Bernard H. Lowery | 39 | Head | Manager | Minnesota |
| 99 | Agnes M. Lowery | 34 | Wife | Organizer | Minnesota |
| 100 | Bernard J. Lowery | 13 | Son | — | Minnesota |
Pedigree Summary
Olga
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 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)