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John Swanson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Rockland-County, New York
Our Model Tree links this John Swanson across the 1930 and 1940 US Censuses in Rockland-County, New York (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 12-person household.
Age 18
b. ~1922
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Rockland-County, New York |
| Surname | Swanson |
| Given Name | John C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Clarkstown |
| 1935 Residence (County) | Rockland |
| Additional Details | |
| Occupation | farm labor |
| Industry | farm |
| Class of Worker | PW |
| Hours Worked | 26 |
| Income (1939) | 30 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Farm Laborer |
| Township / Ward | Clarkstown |
| Est. Birth Year | ~1922 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Ruth Swanson | Daughter | — | 13 | ~1927 |
| Bertha Swanson | Daughter | — | 17 | ~1923 |
| Margaret Swanson | Daughter | — | 8 | ~1932 |
| Bertha Swanson | Head | — | 48 | ~1892 |
| Elmer Swanson | Son | — | 22 | ~1918 |
| James Swanson | Son | — | 29 | ~1911 |
| Robert Swanson | Son | — | 20 | ~1920 |
| Raymond Swanson | Son | — | 9 | ~1931 |
| Albert Swanson | Son | — | 14 | ~1926 |
| Everett Swanson | Son | — | 15 | ~1925 |
| George Swanson | Son | — | 6 | ~1934 |
| John Swanson | Son | — | 18 | ~1922 |
Census Appearances
1930
Westchester, New …
Other, age 7
Westchester, New York · implied b. ~1923 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Swanson |
| Given Name | John |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read/Write | No |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Rockland-County, New …
Son, age 18
Rockland-County, New York · implied b. ~1922 — 12 household members
| Surname | Swanson |
| Given Name | John C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Clarkstown |
| 1935 Residence (County) | Rockland |
| Occupation | farm labor |
| Industry | farm |
| Class of Worker | PW |
| Hours Worked | 26 |
| Income (1939) | 30 |
| 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 John Swanson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Swanson
Son · 1940 · age 18 · b. ~1922 · New York
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Sibling
Ruth Swanson
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Swanson
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Swanson
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elmer Swanson
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bertha Swanson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Albert Swanson
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Swanson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Swanson
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Everett Swanson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Swanson
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-t0627-02766-00072)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William A Strong | 16 | Son | Clerk | New York |
| 42 | Eunice Strong | 5 | Daughter | — | New York |
| 43 | Charles Shields | 41 | Head | Laborer | New York |
| 44 | Mary G Shields | 42 | Wife | — | New York |
| 45 | Charles Jr Shields | 11 | Son | — | New York |
| 46 | Mary A Shields | 9 | Daughter | — | New York |
| 47 | George R Langer | 45 | Head | Gardener | Germany |
| 48 | Gertrude Langer | 42 | Wife | Assembler | Germany |
| 49 | Peter Langer | 17 | Son | — | Germany |
| 50 | Paul H Waldron | 24 | Head | Technician | Pennsylvania |
| 51 | Esther S Waldron | 29 | Wife | — | Germany |
| 52 | Joan Waldron | 5 | Daughter | — | Germany |
| 53 | Angela Waldron | 4 | Daughter | — | New York |
| 54 | John R Mckenna | 32 | Head | Fireman | New York |
| 55 | Claire Mckenna | 31 | Wife | — | New York |
| 56 | Claire Mckenna | 11 | Daughter | — | New Jersey |
| 57 | Richard Marczan | 34 | Head | Trucking | Roumania |
| 58 | Florence B Marczan | 34 | Wife | — | New York |
| 59 | Richard A Marczan | 10 | Son | — | New York |
| 60 | Raymond Marczan | 7 | Son | — | New York |
| 61 | Ralph Marczan | 6 | Son | — | New York |
| 62 | Daniel M Hannigan | 51 | Head | Road Gateman | New York |
| 63 | Eva B Hannigan | 61 | Wife | — | Canada-English |
| 64 | Frank R Hopper | 23 | Head | Farm Labor | New York |
| 65 | Frances Hopper | 17 | Wife | Cleaner | New Jersey |
| 66 | William R Hopper | 33 | Head | Cleaner | New York |
| 67 | Mabel S Hopper | 33 | Wife | — | New York |
| 68 | William Jr Hopper | 6 | Son | — | New York |
| 69 | Bertha Swanson | 48 | Head | — | New York |
| 70 | James T Swanson | 29 | Son | Farm Labor | New York |
| 71 | Elmer P Swanson | 22 | Son | Miller | New York |
| 72 | Robert W Swanson | 20 | Son | News Worker | New York |
| 73 | John C Swanson THIS PERSON | 18 | Son | Farm Labor | New York |
| 74 | Bertha S Swanson | 17 | Daughter | — | New York |
| 75 | Everett S Swanson | 15 | Son | — | New York |
| 76 | Albert A Swanson | 14 | Son | — | New York |
| 77 | Ruth Swanson | 13 | Daughter | — | New York |
| 78 | Raymond Swanson | 9 | Son | — | New York |
| 79 | Margaret Swanson | 8 | Daughter | — | New York |
| 80 | George A Swanson | 6 | Son | — | New York |
Related Census Records
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)