WC
William Carlson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kings-County, New York
Our Model Tree links this William Carlson across the 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 10-person household.
Age 11
b. ~1929
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Carlson |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Brooklyn |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Highest Grade | 4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | Brooklyn |
| Est. Birth Year | ~1929 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Dolores Carlson | Daughter | — | 3 | ~1937 |
| Caroline Carlson | Daughter | — | 12 | ~1928 |
| Herman Carlson | Head | — | 57 | ~1883 |
| William Carlson | Son | — | 11 | ~1929 |
| Martha Carlson | Spouse | — | 36 | ~1904 |
| Arlene Carlson | Daughter | — | ~1940 | |
| Helen Carlson | Daughter | — | 15 | ~1925 |
| Albert Carlson | Son | — | 14 | ~1926 |
| Alice Carlson | Daughter | — | 6 | ~1934 |
| Carl Carlson | Son | — | 8 | ~1932 |
Census Appearances
1930
Kings, New …
Son, age 1
Kings, New York · implied b. ~1929 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Sweden |
| Mother's Birthplace | New York |
| Can Read/Write | No |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Son, age 11
Kings-County, New York · implied b. ~1929 — 10 household members
| Surname | Carlson |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Brooklyn |
| 1935 Residence (County) | Kings |
| Highest Grade | 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 William Carlson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Carlson
Son · 1940 · age 11 · b. ~1929 · New York
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Sibling
Dolores Carlson
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Caroline Carlson
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Carlson
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Carlson
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arlene Carlson
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Carlson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Albert Carlson
Sibling · 1940 · age 14
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-t0627-02562-00813)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Herman Carlson | 57 | Head | Polisher | Sweden |
| 2 | Martha Carlson | 36 | Wife | — | New York |
| 3 | Helen Carlson | 15 | Daughter | — | New York |
| 4 | Albert Carlson | 14 | Son | — | New York |
| 5 | Caroline Carlson | 12 | Daughter | — | New York |
| 6 | William Carlson THIS PERSON | 11 | Son | — | New York |
| 7 | Carl Carlson | 8 | Son | — | New York |
| 8 | Alice Carlson | 6 | Daughter | — | New York |
| 9 | Dolores Carlson | 3 | Daughter | — | New York |
| 10 | Arlene Carlson | 0 | Daughter | — | New York |
| 11 | Raphael De Paul | 43 | Head | — | New York |
| 12 | Barbara De Paul | 38 | Wife | — | New York |
| 13 | Margaret De Paul | 14 | Daughter | — | New York |
| 14 | Anthony Glock | 46 | Head | Laborer | New York |
| 15 | Helen Glock | 18 | Daughter | — | New York |
| 16 | Ewald Glock | 15 | Son | — | New York |
| 17 | Elsie Glock | 13 | Son | — | New York |
| 18 | Mildred Glock | 10 | Daughter | — | New York |
| 19 | Joan Glock | 7 | Daughter | — | New York |
| 20 | Domingo Fortuny | 51 | Head | Carpenter | Spain |
| 21 | Sophie Fortuny | 38 | Wife | — | Germany |
| 22 | Joseph Fortuny | 6 | Son | — | New York |
| 23 | Margaret Fortuny | 3 | Daughter | — | New York |
| 24 | Ralph Fortuny | 1 | Son | — | New York |
| 25 | Frank Rini | 27 | Head | — | New York |
| 26 | Margaret Rini | 25 | Wife | Mender | Illinois |
| 27 | Hattie Zucker | 53 | Head | — | Austria |
| 28 | Rochelle Zucker | 22 | Daughter | Stenographer | New York |
| 29 | John Soino | 47 | Head | Machinist | Italy |
| 30 | Antoinette Soino | 57 | Wife | — | Italy |
| 31 | Josephine Grifero | 39 | Head | — | Italy |
| 32 | Beatrice Grifero | 15 | Daughter | — | New York |
| 33 | Frances Grifero | 14 | Daughter | — | New York |
| 34 | Joseph Nigro | 61 | Head | Laborer | Italy |
| 35 | Susie Nigro | 49 | Wife | — | Italy |
| 36 | Minnie Nigro | 21 | Daughter | New Maker | New York |
| 37 | Ellen Nigro | 18 | Daughter | New Maker | New York |
| 38 | Jennie Nigro | 15 | Daughter | — | New York |
| 39 | Joseph Viviano | 21 | Head | Upholsterer | New York |
| 40 | Anne Viviano | 19 | Wife | Floor Girl | 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)