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Charles Lambert — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Will-County, Illinois
Our Model Tree links this Charles Lambert across the 1930 and 1940 US Censuses in Will-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 9-person household.
Age 18
b. ~1922
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Will-County, Illinois |
| Surname | Lambert |
| Given Name | Charles |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Joliet |
| 1935 Residence (County) | Will |
| Additional Details | |
| Occupation | Labor |
| Industry | School Project |
| Class of Worker | GW |
| Income (1939) | 180 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Labor |
| Township / Ward | Joliet |
| Est. Birth Year | ~1922 |
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 Charles | Age | Birth yr |
|---|---|---|---|---|
| Fredrick Lambert | Son | — | 8 | ~1932 |
| Lilian Lambert | Head | — | 46 | ~1894 |
| Charles Lambert | Son | — | 18 | ~1922 |
| Everlen Lambert | Daughter | — | 16 | ~1924 |
| Leonard Lambert | Son | — | 23 | ~1917 |
| Joseph Lambert | Son | — | 11 | ~1929 |
| Donald Lambert | Son | — | 4 | ~1936 |
| Darthy Lambert | Daughter | — | 9 | ~1931 |
| Elizabeth Lambert | Daughter | — | 22 | ~1918 |
Census Appearances
1930
Will, Illinois
Son, age 8
Will, Illinois · implied b. ~1922 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lambert |
| Given Name | Charles |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Will-County, Illinois
Son, age 18
Will-County, Illinois · implied b. ~1922 — 9 household members
| Surname | Lambert |
| Given Name | Charles |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Joliet |
| 1935 Residence (County) | Will |
| Occupation | Labor |
| Industry | School Project |
| Class of Worker | GW |
| Income (1939) | 180 |
| Highest Grade | Hs 1 |
| 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 Charles Lambert across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Charles Lambert
Son · 1940 · age 18 · b. ~1922 · Illinois
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Sibling
Fredrick Lambert
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Everlen Lambert
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Lambert
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Lambert
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leonard Lambert
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Darthy Lambert
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Lambert
Sibling · 1940 · age 22
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 — Will-County, Illinois
Open full size
1940 US Federal Census — Will-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00908-00209)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Oscar Laraway | 53 | Head | Attorney | Illinois |
| 42 | Stella Laraway | 46 | Wife | — | Illinois |
| 43 | Robert Laraway | 18 | Son | — | Illinois |
| 44 | Maymie Lamp | 43 | Maid | House Maid | Illinois |
| 45 | Israel Denton | 72 | Head | — | New York |
| 46 | Bessie M. Denton | 43 | Wife | — | Pennsylvania |
| 47 | Betty L. Denton | 11 | Daughter | — | Illinois |
| 48 | Louise Denton | 66 | Sister | Librarian | New York |
| 49 | Rosa L. Hall | 77 | In law | — | W. Virginia |
| 50 | Otis Freeze | 58 | Head | Plumber | Missouri |
| 51 | Perl Freeze | 54 | Wife | — | Missouri |
| 52 | Louis Smith | 21 | Daughter | — | Missouri |
| 53 | Robert Smith | 1 | Son | — | Illinois |
| 54 | Otis T. Smith | 25 | Son | Factory | Arkansas |
| 55 | Herbert Smith | 19 | Son | New Worker | Missouri |
| 56 | Lilian Lambert | 46 | Head | — | Illinois |
| 57 | Leonard Lambert | 23 | Son | Pressman | Illinois |
| 58 | Elizabeth Lambert | 22 | Daughter | Nursery School Project | Illinois |
| 59 | Charles Lambert THIS PERSON | 18 | Son | Labor | Illinois |
| 60 | Everlen Lambert | 16 | Daughter | — | Illinois |
| 61 | Joseph Lambert | 11 | Son | — | Illinois |
| 62 | Darthy Lambert | 9 | Daughter | — | Illinois |
| 63 | Fredrick Lambert | 8 | Son | — | Illinois |
| 64 | Donald Lambert | 4 | Son | — | Illinois |
| 65 | Elizabeth Sharp | 40 | Head | — | Illinois |
| 66 | Dorthy Sharp | 15 | Daughter | — | Illinois |
| 67 | Virginia Sharp | 13 | Daughter | — | Illinois |
| 68 | Dena Sharp | 7 | Daughter | — | Illinois |
| 69 | William Kelley | 52 | Lodger | Labor | Iowa |
| 70 | Perl Warren | 51 | Lodger | Nurse | Tennessee |
| 71 | Sarah Butler | 65 | Head | — | Illinois |
| 72 | Cris Gould | 22 | Lodger | Clening Work | Illinois |
| 73 | James Roy | 72 | Lodger | — | Illinois |
| 74 | Charlet Roy | 68 | Wife | — | Illinois |
| 75 | Perl Maxwen | 36 | Head | — | Illinois |
| 76 | Cliford Maxwen | 18 | Son | Chicken Picker | Illinois |
| 77 | Elmer Maxwen | 15 | Son | — | Illinois |
| 78 | Robert Maxwen | 7 | Son | — | Illinois |
| 79 | Theadore Roberts | 42 | Head | Machinist | Iowa |
| 80 | Claire Roberts | 37 | Wife | — | Iowa |
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)