OJ
Olga Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kings-County, New York
Our Model Tree links this Olga Johnson across the 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a daughter (b.~1915), then head of a 12-person household.
Age 25
b. ~1915
Female
Daughter
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Johnson |
| Given Name | Olga |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | New York City |
| Est. Birth Year | ~1915 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Olga | Age | Birth yr |
|---|---|---|---|---|
| Manuel Silvia | Son | — | 36 | ~1904 |
| Mary Silvia | Daughter | — | 33 | ~1907 |
| Olga Johnson | Daughter | — | 25 | ~1915 |
| Marilyn Johnson | Other | — | 2 | ~1938 |
| Walter Johnson | Other | — | ~1940 | |
| John Silvia | Son | — | 19 | ~1921 |
| Walter Johnson | Other | — | 44 | ~1896 |
| Rosa Gordilini | Spouse | — | 41 | ~1899 |
| Burtolo Gordilini | Head | — | 60 | ~1880 |
| Martha Silvia | Daughter | — | 23 | ~1917 |
| Herbert Silvia | Son | — | 10 | ~1930 |
| Mary Cosa | Daughter | — | 1 | ~1939 |
Census Appearances
1930
Kings, New …
Daughter, age 15
Kings, New York · implied b. ~1915 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Olga |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Junior High School |
| Industry | XXXX |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Daughter, age 25
Kings-County, New York · implied b. ~1915 — 12 household members
| Surname | Johnson |
| Given Name | Olga |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Olga Johnson
Daughter · 1940 · age 25 · b. ~1915 · New York
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Sibling
Martha Silvia
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Silvia
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Cosa
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herbert Silvia
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Silvia
Sibling · 1940 · age 33
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Manuel Silvia
Sibling · 1940 · age 36
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 — Kings-County, New York
Open full size
1940 US Federal Census — Kings-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02572-00019)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Angeline Vaccaro | 19 | Daughter | Milliner | New York |
| 2 | Salvatore Vaccaro | 16 | Son | — | New York |
| 3 | Daniel Vaccaro | 11 | Son | — | New York |
| 4 | John Vaccaro | 9 | Son | — | New York |
| 5 | Joseph Vaccaro | 7 | Son | — | New York |
| 6 | John Mingo | 44 | Head | Steamman | Portugal |
| 7 | Mary Mingo | 38 | Wife | — | New York |
| 8 | George Mingo | 18 | Son | — | New York |
| 9 | Michael Mingo | 12 | Son | — | New York |
| 10 | Ronald Mingo | 1 | Son | — | New York |
| 11 | Burtolo Gordilini | 60 | Head | Dock Tender | Italy |
| 12 | Rosa Gordilini | 41 | Wife | — | Portugal |
| 13 | Walter Johnson | 44 | Son-in-law | Shipfitter | New Jersey |
| 14 | Olga Johnson THIS PERSON | 25 | Daughter | — | New York |
| 15 | Manuel Silvia | 36 | Son | Waterproofer | New York |
| 16 | Mary Silvia | 33 | Daughter | Operator | New York |
| 17 | Martha Silvia | 23 | Daughter | Packer | New York |
| 18 | John Silvia | 19 | Son | Helper | New York |
| 19 | Herbert Silvia | 10 | Son | — | New York |
| 20 | Mary Cosa | 1 | Daughter | — | New York |
| 21 | Marilyn Johnson | 2 | Grandchild | — | Connecticut |
| 22 | Walter Johnson | 0 | Grandchild | — | New York |
| 23 | Morris Kaufman | 68 | Head | — | Russia |
| 24 | Helen Kaufman | 66 | Wife | — | Russia |
| 25 | Charlie Kaufman | 32 | Son | Attorney | New York |
| 26 | Jack Kaufman | 31 | Son | Factory | New York |
| 27 | Frank Biondi | 44 | Head | Longshore | Italy |
| 28 | Rosie Biondi | 45 | Wife | — | Italy |
| 29 | Salvatore Biondi | 27 | Son | Longshore | New York |
| 30 | Nancy Biondi | 21 | Daughter | Operator | New York |
| 31 | Carmine Biondi | 19 | Son | — | New York |
| 32 | Vincent Biondi | 15 | Son | — | New York |
| 33 | Andrew Biondi | 12 | Son | — | New York |
| 34 | Angeline Biondi | 10 | Daughter | — | New York |
| 35 | Pasquale Biondi | 7 | Son | — | New York |
| 36 | Barnhart Greenbaum | 42 | Head | Metal Bedder | Poland |
| 37 | Matilda Greenbaum | 34 | Wife | Operator | Germany |
| 38 | Else Rosbach | 67 | Mother-in-law | — | Russia |
| 39 | Nathaniel Chainin | 63 | Father-in-law | — | Russia |
| 40 | Bernard Greenbaum | 7 | Son | — | Germany |
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)