HC
Helen Carlson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Nassau-County, New York
Our Model Tree links this Helen Carlson across the 1920, 1930 and 1940 US Censuses in Nassau-County, New York (XGBoost, ~Confirmed) — first a spouse (b.~1894), then head of a 4-person household.
Age 46
b. ~1894
Female
Spouse
Born: Sweden
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Nassau-County, New York |
| Surname | Carlson |
| Given Name | Helen |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Roslyn Village |
| 1935 Residence (County) | Nassau |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | H 2 |
| 1935 Residence | Same house |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Township / Ward | Roslyn Village |
| Est. Birth Year | ~1894 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Gunnar Carlson | Head | — | 48 | ~1892 |
| Edith Carlson | Daughter | — | 23 | ~1917 |
| Helen Carlson | Spouse | — | 46 | ~1894 |
| Eric Carlson | Son | — | 15 | ~1925 |
Census Appearances
1920
Nassau, New …
Spouse, age 26
Nassau, New York · implied b. ~1894 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Helen |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Sweden |
| Year of Immigration | 1907 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1930
Nassau, New …
Spouse, age 36
Nassau, New York · implied b. ~1894 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Helen |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1908 |
| Age at First Marriage | 21 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Nassau-County, New …
Spouse, age 46
Nassau-County, New York · implied b. ~1894 — 4 household members
| Surname | Carlson |
| Given Name | Helen |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Roslyn Village |
| 1935 Residence (County) | Nassau |
| Naturalization Status | Naturalized |
| Highest Grade | H 2 |
| 1935 Residence | Same house |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
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 Helen Carlson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Helen Carlson
Spouse · 1940 · age 46 · b. ~1894 · New York
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Nassau-County, New York
Open full size
1940 US Federal Census — Nassau-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02691-00686)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Savage Victoria Savage | 79 | wife | — | Maine |
| 2 | Irving Somerindyke | 40 | Head | Proprietor | New York |
| 3 | Marjorie Somerindyke | 29 | wife | — | New York |
| 4 | Betsy Marie Somerindyke | 3 | daughter | — | New York |
| 5 | Alice G. Titus | 53 | Head | Proprietor | New York |
| 6 | Emma W. Titus | 79 | mother | — | New York |
| 7 | Winifred Moran | 41 | Sister | Practical Nursing | New Jersey |
| 8 | Joseph Heintz | 52 | Head | Plumbing Odd Jobs | New York |
| 9 | Mary V. Morris | 88 | Head | — | Maryland |
| 10 | Niels Jorgensen | 46 | Head | Caretaker | Denmark |
| 11 | Olga Jorgensen | 46 | wife | Maid | Denmark |
| 12 | Charles Carpenter | 37 | Head | Chauffeur | New York |
| 13 | Susie Carpenter | 32 | wife | — | S. Carolina |
| 14 | James Jefferson | 16 | Nephew | — | S. Carolina |
| 15 | Laura Mcgee | 12 | Stepdaughter | — | New York |
| 16 | Frank Campbell | 49 | Head | Laborer | New York |
| 17 | Lois C. Campbell | 39 | wife | — | New York |
| 18 | Francis W. Campbell | 18 | Son | — | New York |
| 19 | Lois Jean Campbell | 10 | daughter | — | New York |
| 20 | Nicholas A. Tarnovsky | 53 | Head | Landscape Gardener | Russia |
| 21 | Eugenia Tarnovsky | 51 | wife | Dressmaker | Russia |
| 22 | John J. Branney | 44 | Head | Mechanic | Northern Ireland |
| 23 | Jane Branney | 32 | wife | — | Scotland |
| 24 | Edward Davis | 45 | Head | Supt | New York |
| 25 | Ruth Davis | 35 | wife | — | New York |
| 26 | Edward Davis | 15 | Son | — | New York |
| 27 | William P. Willetts | 49 | Head | Broker | New York |
| 28 | Christine Willetts | 46 | wife | — | Pennsylvania |
| 29 | George Willetts | 19 | Son | — | New York |
| 30 | Karl Klotz | 50 | Butler | Butler | Germany |
| 31 | Angela Klotz | 48 | Butler | Cook | Germany |
| 32 | John M. Smith | 62 | Head | Caretaker | Georgia |
| 33 | Anna Smith | 56 | wife | Cook | S. Carolina |
| 34 | Gunnar Carlson | 48 | Head | Chauffeur | Sweden |
| 35 | Helen Carlson THIS PERSON | 46 | wife | — | Sweden |
| 36 | Edith Carlson | 23 | daughter | Stenographer | New York |
| 37 | Eric Carlson | 15 | Son | — | New York |
| 38 | Joseph Hutchings | 58 | Head | Superintendent | New York |
| 39 | Mary Hutchings | 52 | wife | — | New York |
| 40 | Helen Hutchings | 25 | daughter | — | 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)