JL
Joseph Lambert — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Charles-County, Louisiana
Our Model Tree links this Joseph Lambert across the 1920, 1930 and 1940 US Censuses in St.-Charles-County, Louisiana (XGBoost, ~Confirmed), with identified parents Joe & Joseph — first a son (b.~1902), then head of a 9-person household.
Age 38
b. ~1902
Male
Son
Born: Louisiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Charles-County, Louisiana |
| Surname | Lambert |
| Given Name | Joseph O. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | St. Rose |
| 1935 Residence (County) | St. Charles |
| Additional Details | |
| Occupation | School bus driver |
| Industry | Transportation |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 204 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Occupation | School Bus Driver |
| Township / Ward | St Rose |
| Est. Birth Year | ~1902 |
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 |
|---|---|---|---|---|
| Joseph Lambert | Son | — | 38 | ~1902 |
| Mary Lambert | Spouse | — | 63 | ~1877 |
| Bernice Lambert | Daughter | — | 20 | ~1920 |
| Cathy Lambert | Daughter | — | 35 | ~1905 |
| Mabel Lambert | Daughter | — | 27 | ~1913 |
| Virgie Lambert | Daughter | — | 23 | ~1917 |
| Joseph Lambert | Head | — | 65 | ~1875 |
| Evans Lambert | Son | — | 25 | ~1915 |
| Fallon Lambert | Son | — | 23 | ~1917 |
Census Appearances
1920
St Charles, …
Son, age 18
St Charles, Louisiana · implied b. ~1902 — 13 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lambert |
| Given Name | Joseph O. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Occupation | Farmer |
| Industry | Truck Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1930
St Charles, …
Son, age 27
St Charles, Louisiana · implied b. ~1903 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lambert |
| Given Name | Joseph Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Occupation | Chauffeur |
| Industry | School Bus |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
St.-Charles-County, Louisiana
Son, age 38
St.-Charles-County, Louisiana · implied b. ~1902 — 9 household members
| Surname | Lambert |
| Given Name | Joseph O. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | St. Rose |
| 1935 Residence (County) | St. Charles |
| Occupation | School bus driver |
| Industry | Transportation |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 204 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Joe Lambert (~0.92 confidence) and father Joseph Lambert (~0.92 confidence) and mother Celina Lambert (~0.92 confidence) and mother Mary Lambert (~0.92 confidence) and mother Mrs Lambert (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Joe Lambert
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Joseph Lambert
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Celina Lambert
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Mary Lambert
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Mrs Lambert
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Joseph Lambert
Son · 1940 · age 38 · b. ~1902 · Louisiana
★ You are viewing this record
Sibling
Fallon Lambert
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virgie Lambert
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evans Lambert
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernice Lambert
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mabel Lambert
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Cathy Lambert
Sibling · 1940 · age 35
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 — St.-Charles-County, Louisiana
Open full size
1940 US Federal Census — St.-Charles-County, Louisiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01447-00281)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Helen H. Lambert | 14 | daughter | — | Louisiana |
| 42 | Charles W. Lambert | 12 | son | — | Louisiana |
| 43 | Edward W. Lambert | 6 | son | — | Louisiana |
| 44 | Edwin E. Lambert | 6 | daughter | — | Louisiana |
| 45 | Adela O. Lambert | 50 | head | — | Louisiana |
| 46 | John M. Lambert | 73 | brother | — | Louisiana |
| 47 | Edmond J. Lambert | 66 | head | Farmer | Louisiana |
| 48 | William R. Lambert | 64 | head | Farmer | Louisiana |
| 49 | Georgian V. Lambert | 55 | wife | — | Louisiana |
| 50 | John F. Lambert | 25 | son | Filling Station Attendant | Louisiana |
| 51 | Willie P. Lambert | 32 | head | Carpenter | Louisiana |
| 52 | Evelyn J. Lambert | 32 | wife | — | Florida |
| 53 | William H. Lambert | 33 | head | Farmer | Louisiana |
| 54 | Frances Lambert | 30 | wife | — | Louisiana |
| 55 | George B. Sr. Lambert | 61 | head | Farmer | Louisiana |
| 56 | Emilie P. Lambert | 58 | wife | — | Louisiana |
| 57 | Joseph O. Lambert | 65 | head | Farmer | Louisiana |
| 58 | Mary P. Lambert | 63 | wife | — | Louisiana |
| 59 | Joseph O. Lambert THIS PERSON | 38 | son | School Bus Driver | Louisiana |
| 60 | Cathy A. Lambert | 35 | daughter | — | Louisiana |
| 61 | Mabel Lambert | 27 | daughter | — | Louisiana |
| 62 | Fallon M. Lambert | 23 | son | School Bus Driver | Louisiana |
| 63 | Evans J. Lambert | 25 | son | — | Louisiana |
| 64 | Virgie A. Lambert | 23 | daughter | — | Louisiana |
| 65 | Bernice Lambert | 20 | daughter | — | Louisiana |
| 66 | Thomas D. Eugene | 25 | head | Farmer | Louisiana |
| 67 | Carmen Eugene | 25 | wife | — | Louisiana |
| 68 | Dolores A. Eugene | 5 | daughter | — | Louisiana |
| 69 | Charles Eugene | 3 | daughter | — | Louisiana |
| 70 | Marlene R. Eugene | 0 | daughter | — | Louisiana |
| 71 | Willie Evans | 53 | head | Farmer | Louisiana |
| 72 | Henrietta Evans | 48 | wife | — | Louisiana |
| 73 | Willie Jr. Evans | 20 | son | Laborer | Louisiana |
| 74 | Harry Evans | 18 | son | Farmer | Louisiana |
| 75 | Alma Evans | 15 | daughter | — | Louisiana |
| 76 | Rita Evans | 13 | daughter | — | Louisiana |
| 77 | Mary B. Angillard | 15 | daughter | — | Louisiana |
| 78 | Rubid Angillard | 11 | daughter | — | Louisiana |
| 79 | Lawrence Evans | 29 | head | Farmer | Louisiana |
| 80 | Lily M. Evans | 23 | wife | — | Louisiana |
Related Census Records
Pedigree Summary
Joseph + 6 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)