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William Lamb — 1940 US Census Record
Model Tree available1940 United States Federal Census · Calloway-County, Kentucky
Our Model Tree links this William Lamb across the 1920, 1930 and 1940 US Censuses in Calloway-County, Kentucky (XGBoost, ~Confirmed), with identified parents L & Thomas — first a son (b.~1918), then head of a 6-person household.
Age 22
b. ~1918
Male
Son
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Calloway-County, Kentucky |
| Surname | Lamb |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Mag Dist 1 |
| 1935 Residence (County) | Marshall |
| Additional Details | |
| Highest Grade | H 4 |
| 1935 Residence | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Mag Dist 1 |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Nellie Lamb | Daughter | — | 19 | ~1921 |
| Margurite Lamb | Daughter | — | 13 | ~1927 |
| William Lamb | Son | — | 22 | ~1918 |
| Mable Lamb | Daughter | — | 17 | ~1923 |
| Mary Lamb | Spouse | — | 44 | ~1896 |
| L Lamb | Head | — | 46 | ~1894 |
Census Appearances
1920
Marshall, Kentucky
Son, age 2
Marshall, Kentucky · implied b. ~1918 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lamb |
| Given Name | William J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Marshall, Kentucky
Son, age 12
Marshall, Kentucky · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lamb |
| Given Name | William T. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| 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
Son, age 22
Calloway-County, Kentucky · implied b. ~1918 — 6 household members
| Surname | Lamb |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Mag Dist 1 |
| 1935 Residence (County) | Marshall |
| Highest Grade | H 4 |
| 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 William Lamb across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father L Lamb (~0.92 confidence) and father Thomas Lamb (~0.81 confidence) and mother Rassie Lamb (~0.81 confidence) and mother Mary Lamb (~0.92 confidence) and mother Mary Lamb (~0.92 confidence) and mother Mary Lamb (~0.92 confidence). The pedigree spans 2 generations with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.88
Father
L Lamb
b. ~1894
Source father
● Household
· direct · ~0.92
Father
Thomas Lamb
b. ~1872
Source father>father
● Household
· direct · ~0.81
Mother
Rassie Lamb
b. ~1873
Source father>mother
● Household
· direct · ~0.81
Mother
Mary Lamb
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Mary Lamb
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Mary Lamb
b. ~1900
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Lamb
Son · 1940 · age 22 · b. ~1918 · Kentucky
★ You are viewing this record
Sibling
Mable Lamb
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margurite Lamb
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nellie Lamb
Sibling · 1940 · age 19
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 — 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-t0627-01288-00166)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Head Hood | 11 | Head | — | Kentucky |
| 2 | Chesley (V) Adams | 42 | Head | Farmer | Tennessee |
| 3 | Bernadine Adams | 38 | Wife | — | Kentucky |
| 4 | W. H. Adams | 14 | Son | — | Kentucky |
| 5 | Georgine Adams | 10 | Daughter | — | Kentucky |
| 6 | Eugene Adams | 12 | Son | — | Kentucky |
| 7 | W. H. Scarborough | 45 | Head | Lumberman | Mississippi |
| 8 | Maudie Scarborough | 40 | Wife | — | Alabama |
| 9 | Marion Scarborough | 15 | Daughter | — | Mississippi |
| 10 | Jacqueline Scarborough | 8 | Daughter | — | Mississippi |
| 11 | Lela Pruitt | 58 | Head | — | Kentucky |
| 12 | Freeman (V) Pruitt | 34 | Son | Knitter | Kentucky |
| 13 | Christine Pruitt | 34 | Wife | Seamer | Kentucky |
| 14 | W. D. (X) Clapton | 58 | Head | Farmer | Kentucky |
| 15 | Ruth Clapton | 46 | Wife | — | Kentucky |
| 16 | James Dale Clapton | 19 | Son | — | Oklahoma |
| 17 | Janice Clapton | 9 | Daughter | — | Kentucky |
| 18 | Wilburn Smith | 42 | Head | Farmer | Kentucky |
| 19 | Mae Smith | 40 | Wife | — | Kentucky |
| 20 | John B. Smith | 15 | Son | — | Kentucky |
| 21 | Joan Smith | 10 | Daughter | — | Kentucky |
| 22 | Gellaps Thompson | 45 | Head | Manager Farm | Kentucky |
| 23 | John David Thompson | 20 | Son | — | Kentucky |
| 24 | Ann Thompson | 18 | Daughter | — | Kentucky |
| 25 | James Thompson | 13 | Son | — | Kentucky |
| 26 | Geo. W. Thompson | 11 | Son | — | Kentucky |
| 27 | L. W. Lamb | 46 | Head | Farmer | Kentucky |
| 28 | Mary Lamb | 44 | Wife | — | Kentucky |
| 29 | William Lamb THIS PERSON | 22 | Son | — | Kentucky |
| 30 | Nellie Lamb | 19 | Daughter | — | Kentucky |
| 31 | Mable Lamb | 17 | Daughter | — | Kentucky |
| 32 | Margurite Lamb | 13 | Daughter | — | Kentucky |
| 33 | R. D. (X) Simpson | 32 | Head | Farmer | Kentucky |
| 34 | W. C. (X) Harney | 65 | Head | Farmer | Kentucky |
| 35 | Florine Harney | 58 | Wife | — | Tennessee |
| 36 | Carl C. Harney | 32 | Son | Carpenter | Kentucky |
| 37 | Lester Harney | 26 | Son | Farmer | Kentucky |
| 38 | John C. Harney | 16 | Son | — | Kentucky |
| 39 | Clifton (X) Cochran | 19 | Head | Farmer | Kentucky |
| 40 | Nellie Cochran | 20 | Wife | — | Kentucky |
Pedigree Summary
William + 3 siblings
Gen 1 · 4 parents
~0.92
Gen 2 · 2 grandparents
~0.81
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)