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John Olsen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Ramsey-County, Minnesota
Our Model Tree links this John Olsen across the 1930 and 1940 US Censuses in Ramsey-County, Minnesota (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 9-person household.
Age 15
b. ~1925
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ramsey-County, Minnesota |
| Surname | Olsen |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | City of St. Paul |
| 1935 Residence (County) | Ramsey |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same Place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | City Of St Paul |
| Est. Birth Year | ~1925 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Olsen | Son | — | 15 | ~1925 |
| John Olsen | Head | — | 41 | ~1899 |
| Dorothy Olsen | Daughter | — | 14 | ~1926 |
| Jean Olsen | Daughter | — | 17 | ~1923 |
| William Olsen | Son | — | 6 | ~1934 |
| Nancy Olsen | Daughter | — | 8 | ~1932 |
| Lillian Olsen | Spouse | — | 39 | ~1901 |
| Mary Olsen | Daughter | — | 12 | ~1928 |
| James Olsen | Son | — | 4 | ~1936 |
Census Appearances
1930
Ramsey, Minnesota
Son, age 5
Ramsey, Minnesota · implied b. ~1925 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | John H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Ramsey-County, Minnesota
Son, age 15
Ramsey-County, Minnesota · implied b. ~1925 — 9 household members
| Surname | Olsen |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | City of St. Paul |
| 1935 Residence (County) | Ramsey |
| Income (1939) | 0 |
| Highest Grade | Hs 1 |
| 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 John Olsen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Olsen
Son · 1940 · age 15 · b. ~1925 · Minnesota
★ You are viewing this record
Sibling
Jean Olsen
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Olsen
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Olsen
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nancy Olsen
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Olsen
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Olsen
Sibling · 1940 · age 4
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
1940 US Federal Census — Ramsey-County, Minnesota
Open full size
1940 US Federal Census — Ramsey-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02002-00420)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | James T Nolan | 76 | Head | — | Minnesota |
| 42 | Rose Nolan | 68 | Wife | — | Minnesota |
| 43 | Bernice Nolan | 26 | Daughter | Maid | Minnesota |
| 44 | Catherine Nolan | 33 | Daughter | Waitress | Minnesota |
| 45 | James W Nolan | 25 | Son | Superintendent | Minnesota |
| 46 | John M Bohen | 37 | Head | Salesman | Minnesota |
| 47 | Grace Bohen | 36 | Wife | — | Minnesota |
| 48 | John M Bohen | 13 | Son | — | Minnesota |
| 49 | Raymond Goodge | 29 | Head | Clerk | Illinois |
| 50 | Rosemary Goodge | 31 | Wife | — | Illinois |
| 51 | Gerald Goodge | 2 | Son | — | Illinois |
| 52 | John C Kaposke | 51 | Head | Driver | Iowa |
| 53 | Mary Kaposke | 44 | Daughter | Homemaker | Missouri |
| 54 | Evelyn Kaposke | 11 | Daughter | — | Minnesota |
| 55 | John M Olsen | 41 | Head | Chief Clerk | Minnesota |
| 56 | Lillian Olsen | 39 | Wife | — | Minnesota |
| 57 | Jean Olsen | 17 | Daughter | — | Minnesota |
| 58 | John Olsen THIS PERSON | 15 | Son | — | Minnesota |
| 59 | Dorothy A Olsen | 14 | Daughter | — | Minnesota |
| 60 | Mary Katherine Olsen | 12 | Daughter | — | Minnesota |
| 61 | Nancy Olsen | 8 | Daughter | — | Minnesota |
| 62 | William Olsen | 6 | Son | — | Minnesota |
| 63 | James Olsen | 4 | Son | — | Minnesota |
| 64 | Howard J Abbott | 42 | Head | Painter | Minnesota |
| 65 | Mary V Abbott | 42 | Wife | — | Minnesota |
| 66 | Howard J Abbott | 15 | Son | — | Minnesota |
| 67 | James D Abbott | 14 | Son | — | Minnesota |
| 68 | Mary Celine Abbott | 13 | Daughter | — | Minnesota |
| 69 | Austin G Abbott | 11 | Son | — | Minnesota |
| 70 | Eugene G Abbott | 8 | Son | — | Minnesota |
| 71 | John Charles Abbott | 6 | Son | — | Minnesota |
| 72 | Patrick Mulhern | 52 | Head | Superintendent Of Building | Minnesota |
| 73 | Anna Mulhern | 48 | Wife | — | Minnesota |
| 74 | Mary Mulhern | 17 | Daughter | — | Minnesota |
| 75 | Patricia Mulhern | 13 | Daughter | — | Minnesota |
| 76 | John Mulhern | 11 | Son | — | Minnesota |
| 77 | Mary A Coleman | 57 | Head | — | Minnesota |
| 78 | Gertrude Coleman | 49 | Sister | — | Minnesota |
| 79 | Arthur Coleman | 41 | Brother | — | Minnesota |
| 80 | Catherine Murphy | 75 | Head | — | Connecticut |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)