JL
James Lamb — 1940 US Census Record
Model Tree available1940 United States Federal Census · Calloway-County, Kentucky
Our Model Tree links this James Lamb across the 1920, 1930 and 1940 US Censuses in Calloway-County, Kentucky (XGBoost, ~Confirmed), with identified parents Alvin & Ada — first a head (b.~1918), then head of a 3-person household.
Age 22
b. ~1918
Male
Head
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Calloway-County, Kentucky |
| Surname | Lamb |
| Given Name | James O. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Calloway |
| Additional Details | |
| Occupation | Tenant Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Tenant Farmer |
| Township / Ward | Mag District 7 |
| Est. Birth Year | ~1918 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Ruby Lamb | Spouse | — | 16 | ~1924 |
| James Lamb | Head | — | 22 | ~1918 |
| Lucy Lamb | Daughter | — | ~1940 |
Census Appearances
1920
Calloway, Kentucky
Son, age
Calloway, Kentucky · implied b. ~1920 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lamb |
| Given Name | James H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Calloway, Kentucky
Son, age 11
Calloway, Kentucky · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lamb |
| Given Name | James D. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Calloway-County, Kentucky
Head, age 22
Calloway-County, Kentucky · implied b. ~1918 — 3 household members
| Surname | Lamb |
| Given Name | James O. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Calloway |
| Occupation | Tenant Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Kentucky |
| 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 James Lamb across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Alvin Lamb (~0.92 confidence) and mother Ada Lamb (~0.92 confidence) and father Lonnie Lamb (~0.92 confidence) and mother Ethel Lamb (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alvin Lamb
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Ada Lamb
b. ~1880
Source mother
● Household
· direct · ~0.92
Father
Lonnie Lamb
b. ~1898
Source father
● Household
· direct · ~0.92
Mother
Ethel Lamb
b. ~1899
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Lamb
Head · 1940 · age 22 · b. ~1918 · Kentucky
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Calloway-County, Kentucky
Open full size
1940 US Federal Census — Calloway-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01288-00471)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Sallie Jane Hart | 7 | Daughter | — | Kentucky |
| 42 | Barbara Jean Hart | 4 | Daughter | — | Kentucky |
| 43 | Jefferson Lamb | 44 | Head | Farmer | Kentucky |
| 44 | Ellie Lamb | 44 | Wife | — | Kentucky |
| 45 | Idell Lamb | 20 | Son | Farm Laborer | Kentucky |
| 46 | George R. Lamb | 14 | Son | Farm Laborer | Kentucky |
| 47 | James O. Lamb THIS PERSON | 22 | Head | Tenant Farmer | Kentucky |
| 48 | Ruby Irene Lamb | 16 | Wife | — | Kentucky |
| 49 | Lucy Ann Lamb | 0 | Daughter | — | Kentucky |
| 50 | Collie Stubblefield | 32 | Head | Farmer | Kentucky |
| 51 | Lyra Pearl Stubblefield | 30 | Wife | — | Kentucky |
| 52 | Lawing Stubblefield | 10 | Son | — | Kentucky |
| 53 | John W. Stubblefield | 54 | Head | Farmer | Kentucky |
| 54 | Grace Stubblefield | 54 | Wife | — | Kentucky |
| 55 | Andrew J. Herndon | 58 | Head | Farmer | Kentucky |
| 56 | Sallie Herndon | 54 | Wife | — | Kentucky |
| 57 | Ernest Herndon | 19 | Son | Laborer | Kentucky |
| 58 | Myrtle Herndon | 19 | Daughter-in-law | — | Kentucky |
| 59 | Ray E. Lamb | 42 | Head | Farmer | Kentucky |
| 60 | Nornie Lamb | 35 | Wife | — | Kentucky |
| 61 | Matell Lamb | 17 | Daughter | — | Kentucky |
| 62 | Emily Jane Lamb | 83 | Mother | — | Kentucky |
| 63 | Hugh Osborne | 28 | Head | Farm Tenant | Kentucky |
| 64 | Rosie Osborne | 25 | Wife | — | Kentucky |
| 65 | Jannie Osborne | 3 | Daughter | — | Kentucky |
| 66 | Alvin Wilson | 48 | Head | Farmer | Kentucky |
| 67 | Bessie Wilson | 39 | Wife | — | Kentucky |
| 68 | Joe Byron Wilson | 15 | Son | Farm Laborer | Kentucky |
| 69 | Joseph M. Wilson | 81 | Father | — | Kentucky |
| 70 | Edmon L. Wilson | 62 | Head | Farmer | Kentucky |
| 71 | Stella Wilson | 52 | Wife | — | Kentucky |
| 72 | Earl Mix Wilson | 26 | Son | Farm Tenant | Kentucky |
| 73 | Lucile Wilson | 17 | Daughter-in-law | — | Tennessee |
| 74 | Herbert Wilson | 54 | Head | Farmer | Kentucky |
| 75 | Zula Wilson | 46 | Wife | — | Kentucky |
| 76 | John R. Stubblefield | 26 | Head | Tenant Farmer | Kentucky |
| 77 | Roselle Stubblefield | 25 | Wife | — | Kentucky |
| 78 | James D. Stubblefield | 1 | Son | — | Kentucky |
| 79 | Riley B. Wilson | 72 | Head | Farmer | Kentucky |
| 80 | Hattie Wilson | 70 | Wife | — | Kentucky |
Pedigree Summary
James
Gen 1 · 4 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)