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Andrew Olson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Rockland-County, New York
Our Model Tree links this Andrew Olson across the 1920, 1930 and 1940 US Censuses in Rockland-County, New York (XGBoost, ~Confirmed), with identified parents Gustave & Jacob — first a son (b.~1912), then head of a 5-person household.
Age 28
b. ~1912
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Rockland-County, New York |
| Surname | Olson |
| Given Name | Andrew |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New City |
| 1935 Residence (County) | Rockland |
| Additional Details | |
| Occupation | clerk |
| Industry | real estate |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1500 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Clerk |
| Township / Ward | New City |
| Est. Birth Year | ~1912 |
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 1940 census.
| Name | Relation to head | Relative to Andrew | Age | Birth yr |
|---|---|---|---|---|
| Walter Olson | Son | — | 20 | ~1920 |
| Andrew Olson | Son | — | 28 | ~1912 |
| Eric Olson | Son | — | 23 | ~1917 |
| Ingrid Olson | Head | — | 62 | ~1878 |
| Gus Olson | Son | — | 28 | ~1912 |
Census Appearances
1920
Rockland, New …
Son, age 9
Rockland, New York · implied b. ~1911 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Andrew |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Finnish |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Rockland, New …
Son, age 18
Rockland, New York · implied b. ~1912 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Andrew |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Clerk |
| Industry | Bank |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Rockland-County, New …
Son, age 28
Rockland-County, New York · implied b. ~1912 — 5 household members
| Surname | Olson |
| Given Name | Andrew |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New City |
| 1935 Residence (County) | Rockland |
| Occupation | clerk |
| Industry | real estate |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1500 |
| Highest Grade | Hs 4 |
| 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 Andrew Olson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Gustave Olson (~0.92 confidence) and father Jacob Olson (~0.92 confidence) and mother Ingrid Olson (~0.92 confidence) and mother Lydia Olson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Gustave Olson
b. ~1876
Source father
● Household
· direct · ~0.92
Father
Jacob Olson
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Ingrid Olson
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Lydia Olson
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Andrew Olson
Son · 1940 · age 28 · b. ~1912 · New York
★ You are viewing this record
Sibling
Gus Olson
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eric Olson
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Olson
Sibling · 1940 · age 20
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 — Rockland-County, New York
Open full size
1940 US Federal Census — Rockland-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02766-00066)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joan A Hoessel | 25 | Daughter | — | New York |
| 42 | Parkhurst | 50 | Head | — | — |
| 43 | Parkhurst | 50 | Wife | — | — |
| 44 | Parkhurst | 20 | Son | — | — |
| 45 | Parkhurst | 20 | Son | — | — |
| 46 | Parkhurst | 15 | Son | — | — |
| 47 | Lynold B. Slagle | 30 | Head | Engineer | New York |
| 48 | Elise R. H. Slagle | 22 | Wife | — | Pennsylvania |
| 49 | Joseph D. Woolley | 61 | Head | Machinist | England |
| 50 | Emma Woolley | 60 | Wife | — | England |
| 51 | Albert Wiseman | 32 | Head | Bookkeeper | New York |
| 52 | Karen B. Wiseman | 30 | Wife | — | New York |
| 53 | Karen Wiseman | 6 | Daughter | — | New York |
| 54 | Jane Wiseman | 1 | Daughter | — | New York |
| 55 | Ingrid Olson | 62 | Head | — | Finland |
| 56 | Andrew Olson THIS PERSON | 28 | Son | Clerk | New York |
| 57 | Gus Olson | 28 | Son | Clerk | New York |
| 58 | Eric Olson | 23 | Son | Clerk | New York |
| 59 | Walter Olson | 20 | Son | Blender | New York |
| 60 | Johan D. Liska | 57 | Head | — | New York |
| 61 | Mary Liska | 52 | Wife | — | New York |
| 62 | Milen Liska | 10 | Boarder | — | New York |
| 63 | Mary Liska | 11 | Boarder | — | New York |
| 64 | Walter Liska | 14 | Boarder | — | New York |
| 65 | Jane S. White | 61 | Head | — | New York |
| 66 | Joseph White | 36 | Son | Farmer | New York |
| 67 | James Murphy | 36 | Lodger | Chauffer | New York |
| 68 | Margaret Liska | 52 | Head | — | New York |
| 69 | John Liska | 25 | Son | Mechanic | New York |
| 70 | Winifred Liska | 22 | Daughter | — | New York |
| 71 | Anna Snyder | 60 | Sister | — | New York |
| 72 | Madge Woolsey | 10 | Boarder | — | New York |
| 73 | Kathleen Miller | 11 | Boarder | — | New York |
| 74 | Oscar P. Heiser | 58 | Head | Proprietor | Germany |
| 75 | Nancy S. Heiser | 55 | Wife | — | Scotland |
| 76 | Robert P. Heiser | 22 | Son | — | New York |
| 77 | Charlotte V. Heiser | 15 | Daughter | — | New York |
| 78 | Ida S. Frees | 69 | Head | — | New York |
| 79 | Mary L. Frees | 36 | Daughter | Clerk | New Jersey |
| 80 | Bernhard A. Leeb | 50 | Head | Proprietor | Germany |
Pedigree Summary
Andrew + 3 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)