JL
Joseph Lambert — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kankakee-County, Illinois
Our Model Tree links this Joseph Lambert across the 1930 and 1940 US Censuses in Kankakee-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 9-person household.
Age 15
b. ~1925
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kankakee-County, Illinois |
| Surname | Lambert |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Ganeer |
| 1935 Residence (County) | Kankakee |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Ganeer |
| Est. Birth Year | ~1925 |
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 |
|---|---|---|---|---|
| Marie Lambert | Spouse | — | 44 | ~1896 |
| Joseph Lambert | Son | — | 15 | ~1925 |
| Maurice Lambert | Son | — | 18 | ~1922 |
| Eugene Lambert | Son | — | 21 | ~1919 |
| Rena Lambert | Daughter | — | 10 | ~1930 |
| Patricia Lambert | Daughter | — | 6 | ~1934 |
| Eileen Lambert | Daughter | — | 17 | ~1923 |
| Eugene Lambert | Head | — | 47 | ~1893 |
| Theresa Lambert | Daughter | — | 19 | ~1921 |
Census Appearances
1930
Kankakee, Illinois
Son, age 5
Kankakee, Illinois · implied b. ~1925 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lambert |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Kankakee-County, Illinois
Son, age 15
Kankakee-County, Illinois · implied b. ~1925 — 9 household members
| Surname | Lambert |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Ganeer |
| 1935 Residence (County) | Kankakee |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 15 · b. ~1925 · Illinois
★ You are viewing this record
Sibling
Eugene Lambert
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theresa Lambert
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eileen Lambert
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Lambert
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Maurice Lambert
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rena Lambert
Sibling · 1940 · age 10
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 — Kankakee-County, Illinois
Open full size
1940 US Federal Census — Kankakee-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00824-00083)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Oscar Blanchette | 61 | Head | Farmer | Illinois |
| 42 | Josephine Blanchette | 60 | Wife | — | Canada French |
| 43 | Achille Blanchette | 24 | Son | Farm Laborer | Illinois |
| 44 | Anita Blanchette | 18 | Daughter | — | Illinois |
| 45 | Eugene Lambert | 47 | Head | Farmer | Illinois |
| 46 | Marie Lambert | 44 | Wife | — | Illinois |
| 47 | Eugene Jr. Lambert | 21 | Son | Farm Laborer | Illinois |
| 48 | Theresa Lambert | 19 | Daughter | Looper | Illinois |
| 49 | Maurice Lambert | 18 | Son | Farm Laborer | Illinois |
| 50 | Eileen Lambert | 17 | Daughter | — | Illinois |
| 51 | Joseph Lambert THIS PERSON | 15 | Son | — | Illinois |
| 52 | Rena M. Lambert | 10 | Daughter | — | Illinois |
| 53 | Patricia Lambert | 6 | Daughter | — | Illinois |
| 54 | Eugene Monnette | 36 | Head | Farmer | Illinois |
| 55 | Meril Monnette | 36 | Wife | — | Illinois |
| 56 | Alma Jean Monnette | 11 | Daughter | — | Illinois |
| 57 | Eileen M. Monnette | 10 | Daughter | — | Illinois |
| 58 | Robert Leo Monnette | 2 | Son | — | Illinois |
| 59 | Meddie Detoux | 52 | Head | Farmer | Illinois |
| 60 | Mamie Detoux | 49 | Wife | — | Illinois |
| 61 | Della Detoux | 17 | Daughter | Looper | Illinois |
| 62 | Theresa Detoux | 12 | Daughter | — | Illinois |
| 63 | Edward Bouchard | 78 | Head | — | Illinois |
| 64 | Harvey Bouchard | 41 | Son | Farmer | Illinois |
| 65 | Sophrena Bouchard | 32 | Daughter-in-law | — | Illinois |
| 66 | John Rain | 44 | Hand | Farm Laborer | Illinois |
| 67 | Roy Coy | 36 | Head | Press Operator | Illinois |
| 68 | Vesta Coy | 33 | Wife | — | Illinois |
| 69 | Joanne Coy | 11 | Daughter | — | Illinois |
| 70 | Joyce Coy | 4 | Daughter | — | Illinois |
| 71 | Porter Hemphill | 36 | Head | Farmer | Illinois |
| 72 | Helma Hemphill | 35 | Wife | — | Illinois |
| 73 | Regina J. Hemphill | 15 | Daughter | — | Illinois |
| 74 | Patsy J. Hemphill | 4 | Daughter | — | Illinois |
| 75 | Carol S. Hemphill | 1 | Daughter | — | Illinois |
| 76 | Randall Doglio | 27 | Hand | Farm Laborer | Kentucky |
| 77 | Clarence Yohnka | 45 | Head | Farmer | Illinois |
| 78 | Hazel A. Yohnka | 37 | Wife | — | Illinois |
| 79 | Charles H. Yohnka | 5 | Son | — | Illinois |
| 80 | Charles S. Yohnka | 73 | Father | — | Illinois |
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)