JL
James Lambert — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mercer-County, West Virginia
Our Model Tree links this James Lambert across the 1930 and 1940 US Censuses in Mercer-County, West Virginia (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 10-person household.
Age 12
b. ~1928
Male
Son
Born: Virginia
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mercer-County, West Virginia |
| Surname | Lambert |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Virginia |
| 1935 Residence (City) | Rock district |
| 1935 Residence (County) | Mercer |
| Additional Details | |
| Highest Grade | No 1 |
| 1935 Residence | Same place |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Township / Ward | Rock District |
| 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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Arlis Lambert | Head | — | 51 | ~1889 |
| Myrtle Lambert | Daughter | — | 16 | ~1924 |
| Frankie Lambert | Son | — | 18 | ~1922 |
| Ethel Lambert | Daughter | — | 14 | ~1926 |
| Maggie Lambert | Spouse | — | 39 | ~1901 |
| Arnold Lambert | Son | — | 2 | ~1938 |
| Rosa Lambert | Daughter | — | 10 | ~1930 |
| James Lambert | Son | — | 12 | ~1928 |
| Kelly Lambert | Son | — | 7 | ~1933 |
| George Lambert | Son | — | 5 | ~1935 |
Census Appearances
1930
Mercer, West …
Son, age 2
Mercer, West Virginia · implied b. ~1928 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lambert |
| Given Name | James H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | West Virginia |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1940
Mercer-County, West …
Son, age 12
Mercer-County, West Virginia · implied b. ~1928 — 10 household members
| Surname | Lambert |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Virginia |
| 1935 Residence (City) | Rock district |
| 1935 Residence (County) | Mercer |
| Highest Grade | No 1 |
| 1935 Residence | Same place |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
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 · West Virginia
★ You are viewing this record
Sibling
Myrtle Lambert
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arnold Lambert
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frankie Lambert
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Lambert
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kelly Lambert
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ethel Lambert
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rosa 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 — Mercer-County, West Virginia
Open full size
1940 US Federal Census — Mercer-County, West Virginia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04429-00785)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Wilbear Coger | 11 | grandson | — | Virginia |
| 2 | Sallie Weatherford | 59 | Head | Housekeeper | Virginia |
| 3 | Major Weatherford | 36 | son | Coal Loader | Virginia |
| 4 | James Woods | 33 | Head | Coal Loader | Virginia |
| 5 | Ethel Woods | 31 | Wife | — | Virginia |
| 6 | Stafford Woods | 2 | son | — | Virginia |
| 7 | Isaac Murray | 56 | Head | Coal Loader | North Carolina |
| 8 | Willie Murray | 39 | Wife | — | Georgia |
| 9 | Arlis Lambert | 51 | Head | Road Labour | West Virginia |
| 10 | Maggie Lambert | 39 | Wife | — | West Virginia |
| 11 | Frankie Lambert | 18 | son | Laborer | Virginia |
| 12 | Myrtle Lambert | 16 | daughter | — | West Virginia |
| 13 | Ethel Lambert | 14 | daughter | — | West Virginia |
| 14 | James Lambert THIS PERSON | 12 | son | — | Virginia |
| 15 | Rosa Lambert | 10 | daughter | — | West Virginia |
| 16 | Kelly Lambert | 7 | son | — | West Virginia |
| 17 | George Lambert | 5 | son | — | West Virginia |
| 18 | Arnold Lambert | 2 | son | — | West Virginia |
| 19 | James Caves | 56 | Head | Coal Inspector | Virginia |
| 20 | Bertha Caves | 63 | Wife | — | West Virginia |
| 21 | Blair Dillion | 36 | Head | Track Foreman | West Virginia |
| 22 | Georgia Dillion | 36 | Wife | — | Virginia |
| 23 | Lee Dillion | 13 | son | — | West Virginia |
| 24 | Lewis Dillion | 11 | son | — | West Virginia |
| 25 | Jack Dillion | 9 | son | — | West Virginia |
| 26 | Luther Dillion | 8 | son | — | West Virginia |
| 27 | Franklyn D. Dillion | 6 | son | — | West Virginia |
| 28 | Billie Dillion | 4 | son | — | West Virginia |
| 29 | Walter Noe | 63 | Head | Track Foreman | West Virginia |
| 30 | Maggie Noe | 53 | Wife | — | Virginia |
| 31 | Lloyd Dillion | 13 | grandson | — | West Virginia |
| 32 | John K. Sluss | 28 | Head | Track Layer | Virginia |
| 33 | Fordie Sluss | 27 | Wife | — | Virginia |
| 34 | Fredie Sluss | 4 | son | — | Virginia |
| 35 | Peggie Sluss | 2 | daughter | — | West Virginia |
| 36 | Charles Martin | 23 | brother-in-law | Miner | Virginia |
| 37 | Marjorie Martin | 19 | sister-in-law | — | West Virginia |
| 38 | Eddie D. Niswander | 28 | Head | Coal Loader | Virginia |
| 39 | Virginia Niswander | 25 | Wife | — | West Virginia |
| 40 | Anna Belle Niswander | 4 | daughter | — | West Virginia |
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)