JL
Joseph Lambert — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Washington-County, Kansas
Our Model Tree links this Joseph Lambert across the 1930 and 1940 US Censuses in Washington-County, Kansas (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 9-person household.
Age 14
b. ~1926
Male
Son
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Kansas |
| Surname | Lambert |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Clifton Township |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Township / Ward | Clifton Township |
| Est. Birth Year | ~1926 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| Rita Lambert | Daughter | — | 11 | ~1929 |
| Delores Lambert | Daughter | — | 6 | ~1934 |
| Lena Lambert | Spouse | — | 34 | ~1906 |
| Mary Lambert | Daughter | — | 2 | ~1938 |
| Ronald Lambert | Son | — | 16 | ~1924 |
| Albert Lambert | Head | — | 46 | ~1894 |
| Joseph Lambert | Son | — | 14 | ~1926 |
| Donald Lambert | Son | — | 16 | ~1924 |
| Alice Lambert | Daughter | — | 9 | ~1931 |
Census Appearances
1930
Washington, Kansas
Son, age 4
Washington, Kansas · implied b. ~1926 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lambert |
| Given Name | Joseph E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Kansas |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Washington-County, Kansas
Son, age 14
Washington-County, Kansas · implied b. ~1926 — 9 household members
| Surname | Lambert |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Clifton Township |
| 1935 Residence (County) | Washington |
| Class of Worker | 0 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 Joseph Lambert across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Joseph Lambert
Son · 1940 · age 14 · b. ~1926 · Kansas
★ You are viewing this record
Sibling
Rita Lambert
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Lambert
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Delores Lambert
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Lambert
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ronald Lambert
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Lambert
Sibling · 1940 · age 9
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 — Washington-County, Kansas
Open full size
1940 US Federal Census — Washington-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01265-00081)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Evelyn Erickson | 17 | Daughter | — | Kansas |
| 2 | Arlene Erickson | 14 | Daughter | — | Kansas |
| 3 | Clifford Erickson | 11 | Son | — | Kansas |
| 4 | Thelma Erickson | 5 | Daughter | — | Kansas |
| 5 | Milo Hakes | 53 | Head | — | Kansas |
| 6 | Coralie Hakes | 53 | Wife | — | Kansas |
| 7 | Albert Lambert | 46 | Head | Laborer | Kansas |
| 8 | Lena Lambert | 34 | Wife | — | Kansas |
| 9 | Donald Lambert | 16 | Son | Laborer | Kansas |
| 10 | Ronald Lambert | 16 | Son | Laborer | Kansas |
| 11 | Joseph Lambert THIS PERSON | 14 | Son | — | Kansas |
| 12 | Rita Lambert | 11 | Daughter | — | Kansas |
| 13 | Alice Lambert | 9 | Daughter | — | Kansas |
| 14 | Delores Lambert | 6 | Daughter | — | Kansas |
| 15 | Mary Lou Lambert | 2 | Daughter | — | Kansas |
| 16 | Albert Odette | 37 | Head | Laborer | Kansas |
| 17 | Erma Odette | 33 | Wife | — | Kansas |
| 18 | Dorothy Odette | 13 | Daughter | — | Kansas |
| 19 | Ruth Odette | 2 | Daughter | — | Kansas |
| 20 | Thelma Anderson | 26 | Lodger | Teacher | Kansas |
| 21 | Carl O. Nelson | 45 | Head | — | Kansas |
| 22 | Alice Nelson | 45 | Wife | — | Kansas |
| 23 | Dorothy Nelson | 14 | Daughter | — | Kansas |
| 24 | Donald Nelson | 10 | Son | — | Kansas |
| 25 | Clarence C. Yarnall | 37 | Head | — | Kansas |
| 26 | Sophie Yarnall | 34 | Wife | — | Kansas |
| 27 | Clarence E. Yarnall | 13 | Son | — | Kansas |
| 28 | Donald Yarnall | 11 | Son | — | Kansas |
| 29 | Elmer E. Anderson | 35 | Head | Laborer | Kansas |
| 30 | Florence M. Anderson | 36 | Wife | — | Kansas |
| 31 | Elmer Jr. Anderson | 4 | Son | — | Kansas |
| 32 | Lester E. Peterson | 44 | Head | Laborer | Kansas |
| 33 | Astrid Peterson | 34 | Wife | — | Kansas |
| 34 | Pauline Peterson | 6 | Daughter | — | Kansas |
| 35 | John Odette | 70 | Head | Laborer | Illinois |
| 36 | Nellie Odette | 64 | Wife | — | Illinois |
| 37 | Ivan Ayer | 29 | Head | Laborer | Kansas |
| 38 | Leona Ayer | 28 | Wife | — | Kansas |
| 39 | Eva Mae Ayer | 9 | Daughter | — | Kansas |
| 40 | Jane Ayer | 8 | Daughter | — | Kansas |
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)