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John Olsen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Westchester-County, New York
Our Model Tree links this John Olsen across the 1920, 1930 and 1940 US Censuses in Westchester-County, New York (XGBoost, ~Confirmed) — first a head (b.~1896), then head of a 4-person household.
Age 44
b. ~1896
Male
Head
Born: Denmark
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Westchester-County, New York |
| Surname | Olsen |
| Given Name | John A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | TOWN OF RYE |
| 1935 Residence (County) | WESTCHESTER |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Carpenter |
| Industry | Building Construction |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 1800 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
| Occupation | Carpenter |
| Township / Ward | Town Of Rye |
| Est. Birth Year | ~1896 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Clara Olsen | Spouse | — | 48 | ~1892 |
| Ruth Olsen | Daughter | — | 12 | ~1928 |
| John Olsen | Head | — | 44 | ~1896 |
| Oddy Olsen | Son | — | 8 | ~1932 |
Census Appearances
1920
Box Elder, …
Head, age 21
Box Elder, Utah · implied b. ~1899 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olsen |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Married |
| Birthplace | Denmark |
| Year of Immigration | 1906 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Carpenter |
| Industry | home building |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | R |
| Birth Country | Denmark |
| Year of Naturalization | 1911 |
| Birthplace (normalized) | denmark |
1930
Westchester, New …
Head, age 32
Westchester, New York · implied b. ~1898 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olsen |
| Given Name | John R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Denmark |
| Naturalization Status | First papers filed |
| Year of Immigration | 1907 |
| Age at First Marriage | 27 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Carpenter |
| Industry | Building |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | O |
| Home Value / Rent | $6000 |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1940
Westchester-County, New …
Head, age 44
Westchester-County, New York · implied b. ~1896 — 4 household members
| Surname | Olsen |
| Given Name | John A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | TOWN OF RYE |
| 1935 Residence (County) | WESTCHESTER |
| Naturalization Status | Naturalized |
| Occupation | Carpenter |
| Industry | Building Construction |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 1800 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
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 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
John Olsen
Head · 1940 · age 44 · b. ~1896 · New York
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Westchester-County, New York
Open full size
1940 US Federal Census — Westchester-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02813-00321)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ruth Kelly | 33 | Daughter | Salesgirl | New York |
| 42 | Charles Park | 63 | Head | Contractor | New York |
| 43 | Lucy Park | 52 | Wife | — | New York |
| 44 | Agnes Koehler | 48 | Head | Proprietor | Germany |
| 45 | Michael Schultzwerk | 64 | Boarder | Butcher | Germany |
| 46 | Herbert Priskar | 33 | Boarder | Bookkeeper | Germany |
| 47 | Leo Bresman | 40 | Roomer | Machinist | New York |
| 48 | Peter Capeci | 34 | Roomer | Proprietor | New York |
| 49 | Anna Sventek | 50 | Head | Laundress | Czecho-Slovakia |
| 50 | John Jr. Sventek | 20 | Son | Laborer | Connecticut |
| 51 | Richard S. Cox | 56 | Head | — | New York |
| 52 | Harriet Cox | 50 | Wife | — | New Jersey |
| 53 | Elizabeth M. Cox | 18 | Daughter | — | New York |
| 54 | Harry N. Rosenberg | 34 | Head | Manager | New York |
| 55 | Bertha Rosenberg | 32 | Wife | — | Connecticut |
| 56 | Eleanor F. Rosenberg | 5 | Daughter | — | New York |
| 57 | Sandra L. Rosenberg | 1 | Daughter | — | New York |
| 58 | John A. Olsen THIS PERSON | 44 | Head | Carpenter | Denmark |
| 59 | Clara Olsen | 48 | Wife | — | Norway |
| 60 | Ruth Olsen | 12 | Daughter | — | New York |
| 61 | Oddy Olsen | 8 | Son | — | Norway |
| 62 | Domenic Julian | 68 | Head | Carpenter | Italy |
| 63 | Madalene Julian | 61 | Wife | — | Italy |
| 64 | Eleanor Julian | 24 | Daughter | Machine Operator | New York |
| 65 | Frank Yankowski | 29 | Head | Book Binder | New York |
| 66 | Rose Yankowski | 28 | Wife | — | New York |
| 67 | Judith A. Yankowski | 4 | Daughter | — | New York |
| 68 | John O'Keefe | 33 | Brother in law | Truck Driver Chauffeur | Connecticut |
| 69 | Theresa O'Keefe | 33 | Sister in law | Sorter | New York |
| 70 | Kenneth J. O'Keefe | 15 | Nephew | — | New York |
| 71 | Aloysius Ferrer | 51 | Head | Proprietor | New York |
| 72 | Cecelia Ferrer | 41 | Wife | — | New York |
| 73 | Lenore Ferrer | 16 | Daughter | — | New York |
| 74 | Ruth Ferrer | 8 | Daughter | — | New York |
| 75 | Reuben Studwell | 52 | Head | Mail Carrier | New York |
| 76 | Charles G. Studwell | 21 | Son | Clerk | New York |
| 77 | Margaret M. Studwell | 19 | Daughter | — | New York |
| 78 | Edward W. Studwell | 10 | Son | — | New York |
| 79 | Frank Studwell | 8 | Son | — | New York |
| 80 | Robert Goodman | 47 | Head | Stock Market Statis- | Massachusetts |
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)