JL
James Lambert — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Calcasieu-County, Louisiana
Our Model Tree links this James Lambert across the 1930 and 1940 US Censuses in Calcasieu-County, Louisiana (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 9-person household.
Age 12
b. ~1928
Male
Son
Born: Louisiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Calcasieu-County, Louisiana |
| Surname | Lambert |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | De Quincy town |
| 1935 Residence (County) | Calcasieu |
| Additional Details | |
| Highest Grade | G-3 |
| 1935 Residence | Same Place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Township / Ward | De Quincy Town |
| Est. Birth Year | ~1928 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Henry Lambert | Head | — | 41 | ~1899 |
| May Lambert | Spouse | — | 41 | ~1899 |
| Lucille Lambert | Daughter | — | 20 | ~1920 |
| Earl Lambert | Son | — | 19 | ~1921 |
| Thomas Lambert | Son | — | 1 | ~1939 |
| Lurine Lambert | Daughter | — | 6 | ~1934 |
| Gerald Lambert | Son | — | ~1940 | |
| James Lambert | Son | — | 12 | ~1928 |
| Gloria Lambert | Daughter | — | 11 | ~1929 |
Census Appearances
1930
Calcasieu, Louisiana
Son, age 2
Calcasieu, Louisiana · implied b. ~1928 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lambert |
| Given Name | James D |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Can Read/Write | No |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
Calcasieu-County, Louisiana
Son, age 12
Calcasieu-County, Louisiana · implied b. ~1928 — 9 household members
| Surname | Lambert |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | De Quincy town |
| 1935 Residence (County) | Calcasieu |
| Highest Grade | G-3 |
| 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 James Lambert across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Lambert
Son · 1940 · age 12 · b. ~1928 · Louisiana
★ You are viewing this record
Sibling
Gloria Lambert
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Earl Lambert
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lucille Lambert
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gerald Lambert
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lurine Lambert
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Lambert
Sibling · 1940 · age 1
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 — Calcasieu-County, Louisiana
Open full size
1940 US Federal Census — Calcasieu-County, Louisiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01391-00323)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Henry J. Lambert | 41 | Head | Car Inspector | Louisiana |
| 2 | May G. Lambert | 41 | Wife | — | Louisiana |
| 3 | Lucille A. Lambert | 20 | Daughter | — | Louisiana |
| 4 | Earl Lambert | 19 | Son | — | Louisiana |
| 5 | James Lambert THIS PERSON | 12 | Son | — | Louisiana |
| 6 | Gloria Lambert | 11 | Daughter | — | Louisiana |
| 7 | Lurine Lambert | 6 | Daughter | — | Louisiana |
| 8 | Thomas D. Lambert | 1 | Son | — | Louisiana |
| 9 | Gerald T. Lambert | 0 | Son | — | Louisiana |
| 10 | Bridger M. Jr. Nicholas | 29 | Head | Laborer | Louisiana |
| 11 | Esther C. Nicholas | 24 | Wife | — | Louisiana |
| 12 | Wilmer A. Nicholas | 2 | Son | — | Louisiana |
| 13 | Beverly J. Nicholas | 0 | Daughter | — | Louisiana |
| 14 | Woodruff W. Box | 42 | Head | Watchmaker | Alabama |
| 15 | Grace Q. Box | 38 | Wife | — | Louisiana |
| 16 | Olive M. Box | 17 | Daughter | — | Texas |
| 17 | Woodruff W. Jr. Box | 14 | Son | — | Texas |
| 18 | Gennie Box | 11 | Daughter | — | Texas |
| 19 | Hal G. Box | 9 | Son | — | Texas |
| 20 | Vyrone C. Box | 5 | Daughter | — | Texas |
| 21 | Houston D. Millwee | 47 | Head | Agent | Texas |
| 22 | Lois B. Millwee | 52 | Wife | — | Texas |
| 23 | John D. Millwee | 20 | Son | Salesman | Texas |
| 24 | Lois R. Millwee | 17 | Daughter | — | Louisiana |
| 25 | Sara J. Millwee | 15 | Daughter | — | Louisiana |
| 26 | Millie P. Rogers | 51 | Head | Blacksmith | Texas |
| 27 | Ethel B. Rogers | 45 | Wife | — | Texas |
| 28 | Martha E. Rogers | 13 | Daughter | — | Texas |
| 29 | Clara Dearen | 67 | Head | — | Louisiana |
| 30 | Sona Dearen | 40 | Son | Watchman | Louisiana |
| 31 | Juanita Dearen | 15 | Daughter | — | Louisiana |
| 32 | Thomas R. Reynolds | 28 | Son-in-law | Building Bridges | Louisiana |
| 33 | Nora B. Reynolds | 23 | Daughter | — | Louisiana |
| 34 | Melba L. Reynolds | 1 | Daughter | — | Louisiana |
| 35 | Jasper B. Prater | 42 | Head | Bridge-Maint. Carpenter | Louisiana |
| 36 | Lela M. Prater | 30 | Wife | — | Louisiana |
| 37 | Vera M. Prater | 9 | Daughter | — | Louisiana |
| 38 | Marie Prater | 6 | Daughter | — | Louisiana |
| 39 | Fred Reeves | 52 | Head | Logger | Louisiana |
| 40 | Iva Reeves | 41 | Wife | — | Louisiana |
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)