WJ
William Jensen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kings-County, New York
Our Model Tree links this William Jensen across the 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 8-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 | Jensen |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Brooklyn Borough |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Highest Grade | 5 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | Brooklyn Borough |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Cornelius Jensen | Son | — | 16 | ~1924 |
| Cornelius Jensen | Head | — | 43 | ~1897 |
| Mary Jensen | Other | — | 70 | ~1870 |
| Lorraine Jensen | Daughter | — | 3 | ~1937 |
| Mabel Jensen | Spouse | — | 43 | ~1897 |
| William Jensen | Son | — | 11 | ~1929 |
| Franklin Jensen | Son | — | 18 | ~1922 |
| Edwin Jensen | Son | — | 12 | ~1928 |
Census Appearances
1930
Kings, New …
Son, age 1
Kings, New York · implied b. ~1929 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | William Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| 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 — 8 household members
| Surname | Jensen |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Brooklyn Borough |
| 1935 Residence (County) | Kings |
| Highest Grade | 5 |
| 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 Jensen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Jensen
Son · 1940 · age 11 · b. ~1929 · New York
★ You are viewing this record
Sibling
Edwin Jensen
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Cornelius Jensen
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Franklin Jensen
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lorraine Jensen
Sibling · 1940 · age 3
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-t0627-02620-00679)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Fred Fass | 31 | Head | Shoe Store | New York |
| 2 | Sarah Gelen | 68 | Head | — | Russia |
| 3 | Ida B. Rashkin | 47 | Head | — | New York |
| 4 | Freda Rashkin | 12 | Daughter | — | New York |
| 5 | Leon Rashkin | 17 | Son | — | New York |
| 6 | Morris Rashkin | 10 | Son | — | New York |
| 7 | George Lawrence | 36 | Lodger | Mechanic | Virginia |
| 8 | Joseph De Stefano | 42 | Head | Repairs Shoes | Italy |
| 9 | Josephine De Stefano | 42 | Wife | — | Italy |
| 10 | Philip De Stefano | 24 | Son | Clerical Work | New York |
| 11 | Nancy De Stefano | 22 | Daughter | Examiner | New York |
| 12 | Harriet De Stefano | 20 | Daughter | Floor Girl | New York |
| 13 | Eleanor De Stefano | 18 | Daughter | Floor Girl | New York |
| 14 | Jasper De Stefano | 16 | Son | Errand Boy | New York |
| 15 | Mary De Stefano | 13 | Daughter | — | New York |
| 16 | Gloria De Stefano | 5 | Daughter | — | New York |
| 17 | Cornelius Jensen | 43 | Head | Brick Layer | New York |
| 18 | Mabel Jensen | 43 | Wife | — | New York |
| 19 | Franklin Jensen | 18 | Son | — | New York |
| 20 | Cornelius Jr. Jensen | 16 | Son | — | New York |
| 21 | Edwin Jensen | 12 | Son | — | New York |
| 22 | William Jensen THIS PERSON | 11 | Son | — | New York |
| 23 | Lorraine Jensen | 3 | Daughter | — | New York |
| 24 | Mary Jensen | 70 | Mother | — | New York |
| 25 | Thomas Musto | 65 | Head | — | Italy |
| 26 | Louise Musto | 66 | Wife | — | Italy |
| 27 | Louise Musto | 25 | Daughter | Packer | New York |
| 28 | Mary Musto | 23 | Daughter | Packer | New York |
| 29 | Salvatore Buttaccavoli | 68 | Head | — | Italy |
| 30 | Catherine Buttaccavoli | 58 | Wife | — | Italy |
| 31 | Joe Buttaccavoli | 35 | Son | Tile Worker | Italy |
| 32 | Rosalie Buttaccavoli | 35 | Daughter in law | Tile Worker | Italy |
| 33 | Edward Buttaccavoli | 22 | Son | Helper | Connecticut |
| 34 | Tony Musto | 59 | Head | — | Italy |
| 35 | Mary Musto | 59 | Wife | — | Italy |
| 36 | Antoinette Musto | 22 | Daughter | Beautician | Italy |
| 37 | Sam Musto | 30 | Son | Steam Fitter | New York |
| 38 | Joseph Guarino | 52 | Head | — | Italy |
| 39 | Margaret Guarino | 41 | Wife | Operator | New York |
| 40 | Carmella Guarino | 22 | Daughter | Office Work | 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)