MS
Mary Swanson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kings-County, New York
Our Model Tree links this Mary Swanson across the 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a daughter (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Female
Daughter
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Swanson |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | New York City |
| Est. Birth Year | ~1919 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Lillian Swanson | Daughter | — | 17 | ~1923 |
| Frederick Swanson | Son | — | 18 | ~1922 |
| Mary Swanson | Daughter | — | 21 | ~1919 |
| Sarah Swanson | Daughter | — | 22 | ~1918 |
| Anna Swanson | Spouse | — | 45 | ~1895 |
| Carl Swanson | Head | — | 48 | ~1892 |
Census Appearances
1930
Kings, New …
Daughter, age 10
Kings, New York · implied b. ~1920 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Swanson |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Birthplace | New York |
| Father's Birthplace | Ohio |
| Mother's Birthplace | New York |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Daughter, age 21
Kings-County, New York · implied b. ~1919 — 6 household members
| Surname | Swanson |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| 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 Mary Swanson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Swanson
Daughter · 1940 · age 21 · b. ~1919 · New York
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Sibling
Lillian Swanson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frederick Swanson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sarah Swanson
Sibling · 1940 · age 22
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-t0627-02600-00611)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mario Paglia | 54 | Head | Cement Mason | Italy |
| 2 | Michaelina Paglia | 43 | Wife | — | Italy |
| 3 | Marietta Paglia | 24 | Daughter | Machine Operator | New York |
| 4 | John Cream | 49 | Head | Kitchenman | Ireland |
| 5 | Winifred Cream | 40 | Wife | — | Ireland |
| 6 | Patrick J. Toolin | 38 | Head | Foreman | Ireland |
| 7 | Bridget Toolin | 37 | Wife | — | Ireland |
| 8 | Alice Toolin | 9 | Daughter | — | New York |
| 9 | Frank Toolin | 5 | Son | — | New York |
| 10 | Catherine Toolin | 2 | Daughter | — | New York |
| 11 | Frank Grimm | 35 | Head | Lineman | Ireland |
| 12 | Margaret Grimm | 35 | Wife | — | Ireland |
| 13 | James Grimm | 7 | Son | — | New York |
| 14 | Thomas Grimm | 5 | Son | — | New York |
| 15 | Catherine Grimm | 4 | Daughter | — | New York |
| 16 | Eugene Grimm | 2 | Son | — | New York |
| 17 | Margaret Grimm | 1 | Daughter | — | New York |
| 18 | Helen Laris | 53 | Head | Seamstress | Ireland |
| 19 | Carl Swanson | 48 | Head | Ironworker | Sweden |
| 20 | Anna Swanson | 45 | Wife | — | Sweden |
| 21 | Sarah Swanson | 22 | Daughter | — | New York |
| 22 | Mary Swanson THIS PERSON | 21 | Daughter | — | New York |
| 23 | Frederick Swanson | 18 | Son | — | New York |
| 24 | Lillian Swanson | 17 | Daughter | — | New York |
| 25 | James Goughlin | 35 | Head | Conductor Motor | Ireland |
| 26 | Bella Goughlin | 34 | Wife | — | Ireland |
| 27 | John Goughlin | 7 | Son | — | New York |
| 28 | William Goughlin | 6 | Son | — | New York |
| 29 | James Goughlin | 2 | Son | — | New York |
| 30 | Irving Dorfman | 25 | Head | Cutter | New York |
| 31 | Pauline Dorfman | 20 | Wife | — | New York |
| 32 | Louis Dorfman | 7 | Son | — | New York |
| 33 | Frayda Dorfman | 3 | Daughter | — | New York |
| 34 | Felix Finkelreich | 53 | Head | Elevator Operator | Poland |
| 35 | Mary Finkelreich | 53 | Wife | — | Hungary |
| 36 | William Miller | 32 | Lodger | Handyman | New York |
| 37 | Molly Berich | 40 | Head | — | Russia |
| 38 | Harry Berich | 20 | Son | General | New York |
| 39 | Edith Berich | 17 | Daughter | — | New York |
| 40 | Ray Berich | 10 | Son | — | New York |
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)