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Charles Lambert — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Campbell-County, Kentucky
Our Model Tree links this Charles Lambert across the 1930 and 1940 US Censuses in Campbell-County, Kentucky (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 7-person household.
Age 16
b. ~1924
Male
Son
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Campbell-County, Kentucky |
| Surname | Lambert |
| Given Name | Charles |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Dayton City |
| 1935 Residence (County) | Campbell |
| Additional Details | |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Dayton City |
| Est. Birth Year | ~1924 |
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 Charles | Age | Birth yr |
|---|---|---|---|---|
| Donald Lambert | Son | — | 9 | ~1931 |
| Ruth Lambert | Daughter | — | 14 | ~1926 |
| Charles Lambert | Son | — | 16 | ~1924 |
| Raymond Lambert | Son | — | 18 | ~1922 |
| Sarah Lambert | Spouse | — | 36 | ~1904 |
| Elmer Lambert | Daughter | — | 6 | ~1934 |
| Donald Lambert | Head | — | 38 | ~1902 |
Census Appearances
1930
Campbell, Kentucky
Son, age 6
Campbell, Kentucky · implied b. ~1924 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lambert |
| Given Name | Charles G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | W. Virginia |
| Mother's Birthplace | Kentucky |
| Occupation | none |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Campbell-County, Kentucky
Son, age 16
Campbell-County, Kentucky · implied b. ~1924 — 7 household members
| Surname | Lambert |
| Given Name | Charles |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Dayton City |
| 1935 Residence (County) | Campbell |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 16 · b. ~1924 · Kentucky
★ You are viewing this record
Sibling
Ruth Lambert
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Lambert
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Lambert
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elmer Lambert
Sibling · 1940 · age 6
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 — Campbell-County, Kentucky
Open full size
1940 US Federal Census — Campbell-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01290-00331)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary S Ferguson | 75 | Head | — | Virginia |
| 42 | Marie Ferguson | 29 | Daughter | Stenographer | Ohio |
| 43 | Trevis Mayfield | 29 | Head | Grinder | Kentucky |
| 44 | Alice Mayfield | 24 | Wife | — | Ohio |
| 45 | Mary Ellen Mayfield | 1 | Daughter | — | — |
| 46 | Charles Martin | 44 | Lodger | Janitor | Kentucky |
| 47 | Frank Lowry | 47 | Head | Pattern Maker | Ohio |
| 48 | Alma Lowry | 47 | Wife | — | Ohio |
| 49 | Louise Lowry | 18 | Daughter | — | Ohio |
| 50 | John Bickel | 45 | Head | Auto Repairman | Kentucky |
| 51 | Clara Bickel | 45 | Wife | — | Kentucky |
| 52 | John Bickel | 5 | Son | — | — |
| 53 | Gloria Bickel | 5 | Daughter | — | — |
| 54 | Nancy Bickel | 3 | Daughter | — | — |
| 55 | Donald Lambert | 38 | Head | Brakeman | Michigan |
| 56 | Sarah Lambert | 36 | Wife | — | Kentucky |
| 57 | Raymond Lambert | 18 | Son | — | Kentucky |
| 58 | Charles Lambert THIS PERSON | 16 | Son | — | Kentucky |
| 59 | Ruth Lambert | 14 | Daughter | — | Kentucky |
| 60 | Donald Lambert | 9 | Son | — | Kentucky |
| 61 | Elmer Lambert | 6 | Daughter | — | Kentucky |
| 62 | Frederick Schneider | 72 | Head | — | Ohio |
| 63 | Bertha Schneider | 69 | Wife | — | Ohio |
| 64 | Anthony Eschenbach | 46 | Head | Punch Press Operator | Ohio |
| 65 | Mathilda Eschenbach | 42 | Wife | — | Ohio |
| 66 | Lorain Eschenbach | 19 | Daughter | — | Kentucky |
| 67 | Jean Eschenbach | 17 | Daughter | — | Kentucky |
| 68 | Rita Eschenbach | 15 | Daughter | — | Kentucky |
| 69 | William Eschenbach | 10 | Son | — | Kentucky |
| 70 | George Eschenbach | 48 | Brother | Laborer | Ohio |
| 71 | Leonard Millis | 32 | Head | Delivery Fireman | Ohio |
| 72 | Mildred Millis | 32 | Wife | — | Kentucky |
| 73 | Betty Carol Millis | 1 | Daughter | — | Kentucky |
| 74 | — | None | — | — | — |
| 75 | — | None | — | — | — |
| 76 | Charlotte Bold | 30 | Head | Registered Nurse | Ohio |
| 77 | Alice Bold | 26 | Sister | Waitress | Kentucky |
| 78 | Edgar Powers | 27 | Lodger | Auto Parts | Indiana |
| 79 | Myrtle Glenn | 45 | Head | — | Kentucky |
| 80 | Mildred Lingenfield | 37 | Head | — | Kentucky |
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)