JO
John Olsen — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Racine, Wisconsin
Our Model Tree links this John Olsen across the 1930 and 1940 US Censuses in Racine, Wisconsin (XGBoost, ~Confirmed) — first a son (b.~1910), then head of a 8-person household.
Age 20
b. ~1910
Male
Son
Born: Wisconsin
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Racine, Wisconsin |
| Surname | Olsen |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Additional Details | |
| Occupation | Coremaker |
| Industry | Jack Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Coremaker |
| Township / Ward | City Of Racine |
| Est. Birth Year | ~1910 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Olsen | Head | — | 50 | ~1880 |
| Margaret Olsen | Daughter | — | 12 | ~1918 |
| Raymond Olsen | Son | — | 7 | ~1923 |
| Josephine Olsen | Spouse | — | 40 | ~1890 |
| Anna Olsen | Daughter | — | 19 | ~1911 |
| William Olsen | Son | — | 9 | ~1921 |
| Charlotte Olsen | Daughter | — | 15 | ~1915 |
| John Olsen | Son | — | 20 | ~1910 |
Census Appearances
1930
Racine, Wisconsin
Son, age 20
Racine, Wisconsin · implied b. ~1910 — 8 household members
| Surname | Olsen |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | Coremaker |
| Industry | Jack Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Racine-County, Wisconsin
Son, age 31
Racine-County, Wisconsin · implied b. ~1909 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Racine city |
| 1935 Residence (County) | Racine |
| Occupation | Assembler |
| Industry | Automobile Mfg |
| Class of Worker | PW |
| Hours Worked | 41 |
| Income (1939) | 1850 |
| Highest Grade | H 8 |
| 1935 Residence | Same Place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 · 1930 · age 20 · b. ~1910 · Wisconsin
★ You are viewing this record
Sibling
Margaret Olsen
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Olsen
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Olsen
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charlotte Olsen
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Olsen
Sibling · 1930 · age 9
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
1930 US Federal Census — Racine, Wisconsin
Open full size
1930 US Federal Census — Racine, Wisconsin
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2608unit:0146)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Stanley Poziewski | 49 | Head | Laborer | Poland |
| 52 | Helen Poziewski | 44 | Wife | — | Poland |
| 53 | Henry Poziewski | 15 | Son | — | North Dakota |
| 54 | Mary Poziewski | 13 | Daughter | — | North Dakota |
| 55 | Frank Poziewski | 11 | Son | — | North Dakota |
| 56 | Alice Poziewski | 9 | Daughter | — | North Dakota |
| 57 | Victor Poziewski | 7 | Son | — | North Dakota |
| 58 | Eugene Philar | 44 | Boarder | — | Minnesota |
| 59 | Michael Szymanczak | 47 | Head | Moulder | Poland |
| 60 | Mary Szymanczak | 49 | Wife | — | Poland |
| 61 | Lottie Szymanczak | 24 | Daughter | Buffer | Poland |
| 62 | Joseph Janiak | 44 | Head | Moulder | Poland |
| 63 | Constance Janiak | 38 | Wife | — | Poland |
| 64 | Frank Janiak | 18 | Son | — | Wisconsin |
| 65 | Eva Janiak | 14 | Daughter | — | Wisconsin |
| 66 | Leo Janiak | 12 | Son | — | Wisconsin |
| 67 | Mathew Janiak | 10 | Son | — | Wisconsin |
| 68 | Chester Janiak | 8 | Son | — | Wisconsin |
| 69 | Lawrence Janiak | 6 | Son | — | Wisconsin |
| 70 | Irene Janiak | 5 | Daughter | — | Wisconsin |
| 71 | Emily Janiak | 0 | Daughter | — | Wisconsin |
| 72 | George Gonsiorowski | 60 | Head | Laborer | Poland |
| 73 | Agnes Gonsiorowski | 56 | Wife | — | Poland |
| 74 | Walter Gonsiorowski | 24 | Son | Photographer | Wisconsin |
| 75 | Frank Orzel | 42 | Lodger | Laborer | Poland |
| 76 | Walter Benkert | 30 | Lodger | Laborer | Poland |
| 77 | John Dvorak | 42 | Head | Moulder | Poland |
| 78 | Anna Dvorak | 37 | Wife | Driller | Illinois |
| 79 | Marian Dvorak | 18 | Daughter | — | Illinois |
| 80 | Celia Dvorak | 11 | Daughter | — | Wisconsin |
| 81 | Luther Grindle | 36 | Head | Mechanic | Wisconsin |
| 82 | Verna Grindle | 33 | Wife | — | Wisconsin |
| 83 | Doris Grindle | 9 | Daughter | — | Wisconsin |
| 84 | Arthur Grindle | 5 | Son | — | Wisconsin |
| 85 | Herman Nelson | 60 | Head | Fireman | Denmark |
| 86 | Kathryn Nelson | 57 | Wife | — | Denmark |
| 87 | Willard Lage | 35 | Son-in-law | Proprietor | Michigan |
| 88 | Anna Lage | 28 | Daughter | — | Wisconsin |
| 89 | William O'Leary | 4 | Grandson | — | Wisconsin |
| 90 | John Olsen | 50 | Head | Spring Maker | Wisconsin |
| 91 | Josephine Olsen | 40 | Wife | Presser | Wisconsin |
| 92 | John Olsen THIS PERSON | 20 | Son | Coremaker | Wisconsin |
| 93 | Anna Olsen | 19 | Daughter | Telephone Oper. | Wisconsin |
| 94 | Charlotte Olsen | 15 | Daughter | — | Wisconsin |
| 95 | Margaret Olsen | 12 | Daughter | — | Connecticut |
| 96 | William Olsen | 9 | Son | — | New York |
| 97 | Raymond Olsen | 7 | Son | — | New York |
| 98 | Steve Szymanski | 47 | Head | Machinist | Poland |
| 99 | Frank Szymanski | 22 | Son | — | Pennsylvania |
| 100 | Mary Szymanski | 13 | Daughter | — | Wisconsin |
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)