OJ
Olga Johnson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · New York, New York
Our Model Tree links this Olga Johnson across the 1920, 1930 and 1940 US Censuses in New York, New York (XGBoost, ~Confirmed) — first a head (b.~1876), then head of a 5-person household.
Age 54
b. ~1876
Female
Head
Born: Finland
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | New York, New York |
| Surname | Johnson |
| Given Name | Olga |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Widowed |
| Birthplace | Finland |
| Naturalization Status | Alien |
| Year of Immigration | 1921 |
| Age at First Marriage | 22 |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Additional Details | |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 100 |
| Radio Set | R |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
| Est. Birth Year | ~1876 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Olga | Age | Birth yr |
|---|---|---|---|---|
| Olga Johnson | Head | — | 54 | ~1876 |
| Erna Johnson | Daughter | — | 27 | ~1903 |
| Harold Johnson | Son | — | 23 | ~1907 |
| Helvi Johnson | Daughter | — | 19 | ~1911 |
| Verner Johnson | Son | — | 21 | ~1909 |
Census Appearances
1920
New York, …
Head, age 39
New York, New York · implied b. ~1881 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Olga |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Widowed |
| Birthplace | Finland |
| Year of Immigration | 1901 |
| Naturalization Status | Alien |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Housework |
| Industry | For Self |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | R |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1930
New York, …
Head, age 54
New York, New York · implied b. ~1876 — 5 household members
| Surname | Johnson |
| Given Name | Olga |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Widowed |
| Birthplace | Finland |
| Naturalization Status | Alien |
| Year of Immigration | 1921 |
| Age at First Marriage | 22 |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 100 |
| Radio Set | R |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1940
Richmond-County, New …
Other, age 63
Richmond-County, New York · implied b. ~1877 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Olga |
| Relationship to Head | Lodger |
| Sex | F |
| Color / Race | White |
| Age | 63 |
| Marital Status | Widowed |
| Birthplace | Finland |
| 1935 Residence (City) | Richmond Borough |
| 1935 Residence (County) | Richmond |
| Naturalization Status | Alien |
| Occupation | 64 |
| Industry | Maid |
| Class of Worker | Housework |
| Hours Worked | 8 |
| Highest Grade | No 0 |
| 1935 Residence | Same place |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
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 (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Olga Johnson
Head · 1930 · age 54 · b. ~1876 · New York
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — New York, New York
Open full size
1930 US Federal Census — New York, New York
Page Contents
50 people indexed on this census page (ia:1930:newyorkcensus00reel1565:0170)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Gertrude Andres | 28 | Wife | Housework | Germany |
| 52 | Fred Walter | 32 | Head | Chauffeur | Germany |
| 53 | Dagmar Walter | 5 | Daughter | — | Germany |
| 54 | Frederick Vollmer | 27 | Roomer | Butler | Germany |
| 55 | Margaret Vollmer | 27 | Roomer | Cook | Germany |
| 56 | Paul Keller | 27 | Roomer | Clerk | Germany |
| 57 | Willy Bauters | 27 | Roomer | Machinist | Germany |
| 58 | Joseph Redmond | 46 | Roomer | Butler | Scotland |
| 59 | Mary Pullman | 43 | Roomer | Seamstress | Hungary |
| 60 | Mary Gugelson | 38 | Roomer | Cigarette | Russia |
| 61 | David Dixon | 36 | Roomer | Carpenter | England |
| 62 | Paul Jackson | 32 | Roomer | Salesman | Denmark |
| 63 | Conrad Liebrecht | 49 | Roomer | Restaurant | Germany |
| 64 | Ruth Liebrecht | 30 | Roomer | Cashier | Germany |
| 65 | — | None | — | — | — |
| 66 | — | None | — | — | — |
| 67 | — | None | — | — | — |
| 68 | — | None | — | — | — |
| 69 | — | None | — | — | — |
| 70 | — | None | — | — | — |
| 71 | — | None | — | — | — |
| 72 | Joseph Fischer | 52 | Head | Confectionery | Hungary |
| 73 | Antonia Fischer | 52 | Wife | — | Hungary |
| 74 | Martin Fischer | 17 | Son | — | New York |
| 75 | Julia Fischer | 5 | Daughter | — | New York |
| 76 | George Alberti | 49 | Head | Sales | Greece |
| 77 | Helen Alberti | 50 | Wife | Sales | Greece |
| 78 | Michael Alberti | 23 | Son | Student | New York |
| 79 | Mary Alberti | 21 | Daughter | Sales | New York |
| 80 | Margarita Alberti | 17 | Daughter | — | New York |
| 81 | Cyril N. Baxter | 38 | Head | Com. Trav. | Pennsylvania |
| 82 | David N. Baxter | 23 | Son | Mechanic | New York |
| 83 | Irene N. Baxter | 21 | Daughter | Secretary | Indiana |
| 84 | Olga Johnson THIS PERSON | 54 | Head | — | Finland |
| 85 | Erna Johnson | 27 | Daughter | Secretary | New York |
| 86 | Harold Johnson | 23 | Son | Salesman | New York |
| 87 | Verner Johnson | 21 | Son | Draftsman | New York |
| 88 | Helvi Johnson | 19 | Daughter | Manager | New York |
| 89 | John Armond | 27 | Head | Chauffeur | New York |
| 90 | Louise Armond | 28 | Wife | Janitress | Connecticut |
| 91 | Gordon Armond | 2 | Son | — | New York |
| 92 | Gavin Hadden | 41 | Head | Civil Engineer | New York |
| 93 | Rebecca L. Hadden | 37 | Wife | — | Virginia |
| 94 | Gavin Jr. Hadden | 14 | Son | — | New York |
| 95 | Arthur L. Hadden | 13 | Son | — | New York |
| 96 | Martha Nystrom | 38 | Cook | Cook | Finland |
| 97 | Katherine Donnelly | 20 | Waitress | Waitress | Ireland |
| 98 | Mary Mooney | 18 | Nurse | Nurse | Ireland |
| 99 | David Hadden | 10 | Son | — | New York |
| 100 | John L. Hadden | 6 | Son | — | New York |
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)