WJ
William Jensen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Ontario-County, New York
Our Model Tree links this William Jensen across the 1930 and 1940 US Censuses in Ontario-County, New York (XGBoost, ~Confirmed) — first a son (b.~1918), then head of a 7-person household.
Age 22
b. ~1918
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ontario-County, New York |
| Surname | Jensen |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Geneva Town |
| 1935 Residence (County) | Ontario |
| Additional Details | |
| Occupation | Apprentice |
| Industry | Electric Power plant |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 936 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Apprentice |
| Township / Ward | Geneva Town |
| Est. Birth Year | ~1918 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Beck Jensen | Son | — | 21 | ~1919 |
| John Jensen | Son | — | 17 | ~1923 |
| John Jensen | Head | — | 49 | ~1891 |
| Anna Jensen | Spouse | — | 58 | ~1882 |
| Charles Jensen | Son | — | 13 | ~1927 |
| George Jensen | Son | — | 16 | ~1924 |
| William Jensen | Son | — | 22 | ~1918 |
Census Appearances
1930
Ontario, New …
Son, age 12
Ontario, New York · implied b. ~1918 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Denmark |
| Mother's Birthplace | England |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Ontario-County, New …
Son, age 22
Ontario-County, New York · implied b. ~1918 — 7 household members
| Surname | Jensen |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Geneva Town |
| 1935 Residence (County) | Ontario |
| Occupation | Apprentice |
| Industry | Electric Power plant |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 936 |
| Highest Grade | Hs 2 |
| 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 22 · b. ~1918 · New York
★ You are viewing this record
Sibling
John Jensen
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Jensen
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Jensen
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Beck Jensen
Sibling · 1940 · age 21
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 — Ontario-County, New York
Open full size
1940 US Federal Census — Ontario-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02707-00011)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Georgia Robbins | 25 | Daughter | Farmer | New York |
| 2 | Irving Dean | 64 | Head | Farmer | New York |
| 3 | Rose Dean | 65 | Sister | — | New York |
| 4 | George Babcock | 56 | Hired Hand | Farm Laborer | Pennsylvania |
| 5 | George Livermore | 28 | Head | Truck Driver | New York |
| 6 | Mary Livermore | 30 | Wife | Laundress | New York |
| 7 | George Livermore | 9 | Son | — | New York |
| 8 | Kenneth Livermore | 4 | Son | — | New York |
| 9 | Glenn Livermore | 66 | Father | Carpenter | New York |
| 10 | Beardie Butler | 23 | Brother-in-law | Painter | New York |
| 11 | Dorella Butler | 23 | Sister-in-law | — | Arkansas |
| 12 | John Jensen | 49 | Head | Farmer | New York |
| 13 | Anna Jensen | 58 | Wife | — | England |
| 14 | William Jensen THIS PERSON | 22 | Son | Apprentice | New York |
| 15 | Beck Jensen | 21 | Son | Farm Laborer | New York |
| 16 | John Jensen | 17 | Son | — | New York |
| 17 | George Jensen | 16 | Son | — | New York |
| 18 | Charles Jensen | 13 | Son | — | New York |
| 19 | Helen Barnes | 70 | Head | — | New York |
| 20 | Carl Barnes | 51 | Head | Retired | New York |
| 21 | Margaret Barnes | 45 | Wife | — | New York |
| 22 | James Barnes | 15 | Son | — | Washington |
| 23 | William Husted | 30 | Head | Farmer | Pennsylvania |
| 24 | Agnes Husted | 28 | Wife | — | New York |
| 25 | Franklin Husted | 5 | Son | — | New York |
| 26 | Hannah Husted | 3 | Daughter | — | New York |
| 27 | David Husted | 1 | Son | — | New York |
| 28 | Estella Johnson | 63 | Housekeeper | Housekeeper | New York |
| 29 | Floyd Crane | 82 | Lodger | Retired | New York |
| 30 | Elfreda Walton | 76 | Head | — | Michigan |
| 31 | Elizabeth Galinger | 75 | Head | — | New York |
| 32 | Payington Covert | 64 | Head | Medical Doctor | New York |
| 33 | Magdalen Covert | 61 | Wife | — | Pennsylvania |
| 34 | Jay Covert | 24 | Son | Clerk | New York |
| 35 | Barbara Covert | 22 | Daughter | Clerk | New York |
| 36 | Evelyn Gulvin | 65 | Head | — | New York |
| 37 | Marion Gulvin | 25 | Daughter | — | New York |
| 38 | Evan Gulvin | 23 | Son | Attendant | New York |
| 39 | Ruth Gulvin | 15 | Daughter | — | New York |
| 40 | Samuel Harman | 45 | Head | Entomologist | 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)